Datel 20A User's Manual
Contents
1. 1x108 1x108 1x107 1x107 ul el o X E E 7 ul tr 1x106 1x106 1x105 1x105 3 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 Vour INCREASE Vour INCREASE Figure 13 USQ 12 Trim Up Resistance vs Increase VouT Figure 14 USQ 15 Trim Up Resistance vs Increase VouT 1x108 1x108 1x107 1x107 E N o z E o ul tr 1x106 1x108 1x105 1x105 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 Vour INCREASE Vour INCREASE Figure 15 USQ 18 Trim Up Resistance vs Increase Vout Figure 16 USQ 24 Trim Up Resistance vs Increase VouT Trim Down Resistance vs Percentage Decrease in Output Voltage 1x108 1x107 1x105 1x106 ul o z N A o ul tr 1x104 1x105 1x108 1x104 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 Vour DECREASE Vour DECREASE Figure 17 USQ 1 2 Trim Down Resistance vs Decrease Vout Figure 18 USQ 1 5 to USQ 18 Trim Down Resistance vs Decrease Vout 20A SINGLE OUTPUT DC DC CONVERTERS USQ Models Negative Trim Units D Suffix Standard USQ s have a positive trim function consistent with the industry standard footprints and functionality DATEL also offers negative trim USQ s designated with a D suffix to the part number The negative trim devices trim up with a single2. 14 All models are tested and specified with external output capacitors 1yF ceramic in parallel with 10uF tantalum unless otherwise noted These converters have no minimum load require ments and will effectively regulate under no load conditions Contact DATEL for input voltage ranges 18 36V 24V nominal other than those listed See Absolute Maximum Ratings for allowable input voltages See Technical Notes Performance Curves for additional explanations and details Input Ripple Current is tested specified over a 5 20MHz bandwidth with an external 33yF input capacitor and a simulated source impedance of 220uF and 12uH See 1 0 Filtering Input Ripple Current and Output Noise for details The 24V input models can benefit by increasing the S3yF external input capacitance to 100pF if the application has a high source impedance The On Off Control is designed to be driven with open collector or equivalent logic or the application of appropriate voltages referenced to Input pin 1 See Remote On Off Control for more details USQ Series DC DC converters are unconditionally stable including start up and short circuit shutdown situations with capacitive loads up to 25 000yF 470uF for 12V 15V 18V and 24V models at full load Extreme Accuracy refers to the accuracy of either trimmed or untrimmed output voltages over all normal operating ranges and combinations of input voltage output load and temperature See Output Trimming for detail
3. RESISTANCE RESISTANCE RESISTANCE 1x107 1x108 1x105 1x104 1x108 1x107 1x108 1x105 1x104 1x108 1x10 1x108 1x105 0 1 2 3 4 5 6 7 8 9 10 Vour INCREASE Figure 8 USQ 1 5 Trim Up Resistance vs Increase VouT 1 2 3 4 5 6 7 8 9 10 Vour INCREASE Figure 10 USQ 2 5 Trim Up Resistance vs Increase VouT 1 2 3 4 5 6 7 8 9 10 Vour INCREASE Figure 12 USQ 5 Trim Up Resistance vs Increase VouT RESISTANCE RESISTANCE RESISTANCE 20A SINGLE OUTPUT DC DC CONVERTERS Trim Up Resistance vs Percentage Increase in Output Voltage
4. C 90 100 16 USQ Models SINGLE OUTPUT DC DC CONVERTERS 20A Typical Performance Curves for 5Vour Models USQ 5 20 D48 Maximum Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 4 Vin 48V 1 4 heat sink sduiy uasing 1ndino 0 85 75 70 65 25 20 Ambient Temperature C USQ 5 20 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V 1 4 heat sink T T T 1 T j T T i l i i 1 i 1 i i I 1 1 1 1 1 i 1 i i 1 i 1 1 i f q 1 i i 1 p w E i i i 1 i 1 1 i i j i 1 1 j 1 1 i i 1 1 A 4 u 1 i p A ees i i i i 1 1 1 i i Ni j i i i i i 1 i i A A sh bez i g D 1 1 1 1 i i 1 1 1 i 1 f 1 j 1 1 1 i o 1 i j i i i i 1 1 I i 1 Q pata A O A e penc reset i NET 1 1 1 1 1 i l i 1 i i i 1 1 1 1 I I i 1 i 1 1 1 I 1 i i 1 i i 1 1 f I 1 a a di e Sees ores oS i i i 1 i i 1 i i i i 1 i 1 i i i i 1 1 i i i 1 i 1 1 1 i i 1 i 1 1 i 1 1 i Lo qd ro RAO al he a i i i 1 1 1 i i i i 1 1 i i i 1 i 1 1 1 i i 1 1 1 Bop Se Ss cages A DE i 1 1 1 1 1 1 1 i i i 1 1 i i i i 1 1 1 1 1 i i 1 i 1 i i i i l i i 1 i 1 i i H o i I i 1 i 1 i i 1 i 1 1 1 1 1 i i 1 i 1 i 1 i i i i i 1 i 1 i i 1 1 1 1 1 1 i SOLOS OS pepe TOT 1 i i 1 1 i 1 i i 1 i 1 i i i i i i i 1 i i 1 i i i i 1 1 1 i
5. 10 8 T 200 lfm 600 lfm 400 lfm 6 4 Natural Convection 2 0 40 10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C ULQ or UVQ series for alternate models The USQ Series 12V models are discontinued These Performance Curves are for documentation purposes only Refer to DATEL s 18 20A SINGLE OUTPUT DC DC CONVERTERS USQ Models Typical Performance Curves for 12Vour Models Start Up from Remote On Off Control VIN 48V IOUT 8 3A Cour 10pF tantalum 1uF ceramic Remote On Off Control pin 2 2V div 5V div 12Vour pin 8 2msec div USQ 12 8 3 D24 Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 24V 1 2 heat sink Output Current Amps 20 25 30 35 40 45 50 55 60 65 70 75 80 Ambient Temperature C 85 Output Current Amps i i j cal ENTREN EL e oe A USQ 12 8 3 D24 Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 24V no heat sink T r EE 400 lfm bim A ele ee A ees seme 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature C The USQ Series 12V models are discontinued These Performance Curves are for documentation purposes only Refer to DATEL s ULQ or UVQ series for alternate models 19 20A SINGLE OUTPUT DC DC CONVERTERS Typical Performance Curves for 15Vour Models U
6. Input Current and Inrush Transient limits Trimming Output Voltage USQ converters have a trim capability pin 6 that enables users to adjust the output voltage from 10 to 20 refer to the trim equations and trim graphs that follow Adjustments to the output voltage can be accomplished with a single fixed resistor as shown in Figures 5 and 6 A single fixed resis tor can increase or decrease the output voltage depending on its connection Resistors should be located close to the converter and have TCR s less than 100ppm C to minimize sensitivity to changes in temperature If the trim function is not used leave the trim pin open 20A SINGLE OUTPUT DC DC CONVERTERS Standard USQ s have a positive trim where a single resistor connected from the Trim pin pin 6 to the Sense pin 7 will increase the output voltage A resistor connected from the Trim Pin pin 6 to the Sense pin 5 will decrease the output voltage DATEL also offers a negative trim function D suffix added to the part number Contact DATEL for information on negative trim devices Trim adjustments greater than the specified 10 20 can have an adverse affect on the converter s performance and are not recommended Excessive voltage differences between Vour and Sense in conjunction with trim adjustment of the output voltage can cause the overvoltage protection circuitry to activate see Performance Specifications for overvoltage limits Temperature pow
7. 0 50 80 A 4 m fo 4 1 860 47 24 A 1 0 Connections 0 140 DIA 3 56 4 PLACES T f al Pin Function P32 a 1 Input i Case 033 m 2 Remote On Off i o e k 3 3 Input T 5 j 5 amp ga __ la ISTHE sl 4 Output MATERIAL BLACK ANODIZED ALUMINUM A se 4 x 3 5 Sense 0 10 8 sg WITH 0 090 15 Y THREAD RELIEF 6 Output Trim 2 54 USQ SERIES HEATSINKS ARE AVAILABLE IN 3 HEIGHTS 3 i i t hg 0 25 6 35 0 50 12 70 AND 1 00 25 4 Y 7 Sense 1 X 8 Output Heat Sink Ordering Information BOTTOM VIEW ink Hei 05 DIMENSIONS ARE IN INCHES MM B 4tQ She n d Dun 025 netes domm Sous d MM 0 150 3 81 C8 be provided wi 0 50 inches 12 70mm HS QB50 either positive standard 1 00 inches 25 40mm HS QB100 DATEL conforms to industry standard quarter brick pinout see Figure 20 a baseplate only model with a maximum height of 0 375 9 53mm is available with the addition of an H suffix Contact DATEL or negative optional polarity All heat sinks include 4 mounting screws and a thermal pad If using heatsinks other than DATEL s HS QB series the screw length should accomo date the 0 090 thread relief 20A SINGLE OUTPUT DC DC CONVERTERS Performance Functional Specifications Typical Ta 25 C under nominal line voltage and full load conditions unless noted Input Voltage Range D24 Models 18 36 Volts 24V nominal D48 Models 3
8. 0 30 40 50 60 70 80 90 100 Ambient Temperature C 13 USQ Series 20A SINGLE OUTPUT DC DC CONVERTERS Typical Performance Curves for 2 5Vour Models USQ 2 5 20 D48 Maximum Output Current vs Ambient Temperature USQ 2 5 20 D48 Efficiency vs Line Voltage Load Current O 25 C Transverse air flow pin 1 to pin 3 Vin 48V no heat sink 95 90 85 80 A lt c 75 e gom g S Vin 36V 3 x 5 qt qe IE 5 E w 60 Vn 48V 55 z Vin 75V 50 45 40 2 4 6 8 10 12 14 16 18 20 Load Current Amps Ambient Temperature C Start Up from Vin VIN 48V louT 20A Cour 10pF tantalum 1uF ceramic Input pin 3 20V div 1V div H 2 5Vour pin 8 2msec div Start Up from Remote On Off Control VIN 48V IOUT 20A Cour 10pF tantalum 1uF ceramic 2V div Remote On Off Control pin 2 da 2 5Vour pin 8 I I 2msec div 14 20A SINGLE OUTPUT DC DC CONVERTERS USQ Models Typical Performance Curves for 3 3Vour Models USQ 3 3 20 D48 Efficiency vs Line Voltage Load Current O 25 C 95 90 85 e 80 gt Vin 36V o o Vin 48V 7 Vin 75V 65 60 55 22 44 6 7 8 9 114 13 3 15 6 17 8 20 Load Current Amps Start Up from Vin VIN 48V IOUT 20A Cour 10pF tantalum 1uF ceramic Input pin 3 20V div 3 3Vour pin 8 1V div j 2msec div Start Up from R
9. 0 D48 3 3 36 75 1 54 2 1 89 C33 P32 USQ 5 20 D24 5 5 07 6 21 90 C33 P32 USQ 5 20 D48 5 SE 2 33 3 13 90 C33 P32 USQ 6 5 16 D24 6 5 24 18 36 4 95 6 60 87 5 C33 P32 USQ 12 8 3 D24 Contact Factory for Replacement nt L 464608 90 G89 P32 USQ 12 8 3 D48 e ES 220 24 9096 C39 P32 USQ 15 6 7 D24 15 El 24 18 36 4 65 6 14 91 C33 P32 USQ 15 6 7 D48 15 o 2 30 2 42 91 C33 P32 USQ 18 5 6 D24 18 5 6 145 175 0 05 0 05 24 18 36 5 05 6 17 91 C33 P32 USQ 18 5 6 D48 18 5 6 145 175 0 05 0 05 48 36 75 2 30 2 42 91 C33 P32 USQ 24 4 2 D24 24 4 2 115 130 0 05 0 05 24 18 36 5 05 6 17 92 C33 P32 USQ 24 4 2 D48 24 4 2 115 130 0 05 0 05 48 36 75 2 27 3 18 92 C33 P32 USQ 48 2 1 D48 48 2 1 115 200 20 01 20 01 48 36 75 2 27 3 03 94 5 C33 P32 Typical at Ta 25 C under nominal line voltage and full load conditions unless otherwise noted All models are tested and specified with external output capacitors 1UF ceramic in PART NUMBER STRUCT parallel with 104F tantalum Q Contact DATEL for fixed output voltages such as 2 6 5 5 2V or higher output currents such as 12V 12 54 other than those listed En G Ripple Noise R N is tested specified over a 20MHz bandwidth Output noise may be further reduced with the installation of additional external output filtering See I O Filtering Input Ripple Current and Output Noise for details Output Configuration T Trim amp The load regulation specs apply o
10. 01 Rre kQ LEA 102 Rroow KO 102 Vo 5 5 Vo USQ 12 8 3 D24 D48 49 6 Vo 1 226 60 45 Rro KO 227102 Re KO 7 102 USQ 15 6 7 D24 D48 62 9 Vo 1 226 76 56 Rr kQ I OL 102 Rua k0 102 USQ 18 5 6 D24 D48 75 5 Vo 1 226 92 9 Rr KQ HA 102 Riou kQ 7 102 USQ 24 4 2 D24 D48 101 Vo 1 226 124 2 Rr KQ aie 10 2 Roun KQ 2 102 Note Resistor values are in kQ Adjustment accuracy is subject to resistor tolerances and factory adjusted output accuracy Vo desired output voltage 20A SINGLE OUTPUT DC DC CONVERTERS USQ Models RESISTANCE RESISTANCE RESISTANCE 1x108 1x105 Trim Up Resistance vs Percentage Increase in Output Voltage 1x10 1x108 0 1 2 3 4 5 6 7 8 10 VouT INCREASE Figure 7 USQ 1 2 Trim Up Resistance vs Increase VouT 1x107 1x106 1x105 1x104 0 1 2 3 4 5 6 7 8 10 Vour INCREASE Figure 9 USQ 1 8 Trim Up Resistance vs Increase Vour 1x107 1x106 1x105 1x10 1 2 3 4 5 6 7 8 10 Vour INCREASE Figure 11 USQ 3 3 Trim Up Resistance vs Increase Vout
11. 6 75 Volts 48V nominal Overvoltage Shutdown None 9 Start Up Threshold D24 Models 15 5 18 Volts 16 5V typical D48 Models 28 5 32 Volts 30V typical Undervoltage Shutdown D24 Models 14 5 16 5 Volts 15 5V typical D48 Models 26 5 29 5 Volts 28 3V typical Input Current Normal Operating Conditions See Ordering Guide Inrush Transient 0 05A sec maximum Standby Mode Off UV Thermal Shutdown 3mA Input Reflected Ripple Current 9 5mAp p Internal Input Filter Type D24 Models Pi 0 01pF 1 5uH 3 3pF D48 Models Pi 0 01uF 4 7pH 3 3uF Reverse Polarity Protection 9 1 minute duration 5A maximum Remote On Off Control Pin 2 9 Positive Logic P Suffix Models On open open collector or 2 5 5V applied lin 150A max Off pulled low to 0 0 8V lin 800pA max Negative Logic N Suffix Models On pulled low to 0 0 8V lin 800pA max Off open open collector or 2 5 5V applied lin 150A max Minimum Loading No load Maximum Capacitive Loading 7 25 000uF Vout Accuracy Full Load Initial 1 maximum Temperature Coefficient 0 02 per C Extreme 3 Vout Trim Range 10 20 Remote Sense Compensation 10 Ripple Noise 20MHz BW See Ordering Guide Line Load Regulation See Ordering Guide Efficiency See Ordering Guide Isolation Voltage Input to Output 1500Vdc minimum Input to Case 1500Vdc minimum Output to Case 1500Vdc minimum Isolation Resistan
12. 75 to 50 of lour Max Peak Deviation typ 115mV Settling Time to 1 of Final Value max 140us Load Step 50 to 75 of lout Max Peak Deviation typ 120mV Settling Time to 1 of Final Value typ Y 115us Cour 220pF Il 1uF Load Step 75 to 50 of lour Max Peak Deviation typ 120mV Settling Time to 1 of Final Value typ 150ys Switching Frequency min typ max kHz 120 150 180 The listed pair of parallel output capacitors consists of a tantalum in parallel with a multi layer ceramic O Alo At 1A 1ys Vin 48V Tc 25 C 1 5Vour 1 8Vour 2 5Vour 3 3VouT 5Vour 12 to 24Vour 110mV 125mV 100mV 170mV 125mV 100mV 200us 225us 200us 100us 100us 100us 110mV 125mV 100mV 100mV 125mV 100mV 200us 225us 200us 100us 100us 100us TBD 105mV 90mV 105mV TBD 85mV TBD 170us 65s 65ys TBD 40us TBD 90mV 90mV 105mV TBD 50mV TBD 150us 70us 65us TBD 25us 120 150 180 170 185 200 230 255 280 132 147 162 220 240 260 190 210 230 10 20A SINGLE OUTPUT DC DC CONVERTERS USQ Models Typical Performance Curves for 1 2Vour Models USQ 1 2 20 D48 Efficiency vs Line Voltage and Load Current 90 85 _ 80 E Ey 5 75 2 E wi 70 65 60 2 4 6 8 10 12 14 16 18 Load Current Amps Start Up from Vin VIN 48V lOUT 20A Cour 10pF tantalum 1pF ceramic 20V div 1V div 2msec div Start Up from Remote On Off Control VIN 48V louT 20A Cour 10pF tantalum 1uF ceramic 2V div 1V
13. OBSOLETE PRODUCT Contact Factory for Replaces d gt G 20 Amp DC DC Converters Features m Standard 1 45 x 2 28 x 0 40 quarter brick package and pinout Outstanding thermal derating Output current to 20 Amps Outputs Voltages 1 2 1 5 1 8 2 5 3 3 5 12 15 18 24V Input voltage ranges 36 75V 48V nom 18 36V 24V nom Synchronous rectification yields high efficiency to 91 and stable no load operation On Off control trim and sense functions Fully isolated 1500Vdc guaranteed Fully I O protected Thermal shutdown UL1950 EN60950 BASIC insulation approvals Qual tested HALT tested EMI compliant D OATEL A SUBSIDIARY OF C amp D TECHNOLOGIES Single Output USQ 20A Models For low voltage high current power in the smallest space over the widest temperature range call on DATELs USQ Series 20 Amp quarter bricks Occupy ing the industry standard package 1 45 x 2 28 x 0 40 and pinout USQ s house their fully synchronous forward design topology in a two board assembly crowned with a heat sink compatible aluminum baseplate This combination of outstanding thermal and electrical efficiencies endows USQ s with industry leading thermal derating performance The 1 8Vour model for example delivers its full 20 Amps up to 55 C with a mere 200 Ifm air flow USQ s achieve all the performance metrics required for contemporary on board power processing high
14. PLE e Input Output HERE BOTTOM VIEW TOP VIEW Figure 20 Industry Standard Quarter Brick Pinout Figure 21 Thermocouple Placement for Temperature Derating Calculations Figure 20 readily allows users to confirm that DATEL quarter brick DC DC The typical derating curves on the previous pages were developed by moni converters are compatible to the industry standard pinout independent of toring the temperature of the case with a thermocouple placed on top of pin numbering conventions the USQ case as shown in Figure 21 Users desiring to model their own application s temperature derating for a particular environment enclosed area orientation airflow possible heatsinking should make sure the case temperature does not exceed 110 C for any condition DATEL UK LTD Tadley England Tel 01256 880444 Internet www datel europe com E mail datel Itd 9 datel com A SUBSIDIARY OF C amp D TECHNOLOGIES DATEL S A R L Montigny Le Bretonneux France Tel 01 34 60 01 01 Internet www datel europe com E mail datel sarl datel com DATEL Inc 11 Cabot Boulevard Mansfield MA 02048 1151 DATEL GmbH M nchen Germany Tel 89 544334 0 Tel 508 339 3000 800 233 2765 Fax 508 339 6356 Internet www datel europe com E mail datel gmbh datel com www datel com Email sales Odatel com DATEL KK Tokyo Japan Tel 3 3779 1031 Osaka Tel 6 6354 2025 www cdpowerelectronics com i Internet www datel co jp Email salestko datel co jp salesosa O datel co j
15. SQ 15 6 7 D48 Efficiency vs Line Voltage Load Current 25 C 95 90 85 _ 8 amp 3 75 t 5 Vin 36V 3 70 m Vin 48V 60 55 Vin 75V 50 0 67 1 34 2 01 268 335 402 469 536 6 03 6 7 Load Current Amps Start Up from Remote On Off Control VIN 48V louT 6 7A Cour 10pF tantalum 1pF ceramic 2V div 5V div 2msec div Start Up from Vin VIN 48V louT 6 7A Cour 10pF tantalum 1uF ceramic Input pin 3 20V div k 15Vour pin 8 BVidiv P e n e ue Re e e ie ben 2msec div Output Current Amps Output Current Amps USQ 15 6 7 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink a ES N 4 Ambient Temperature C USQ 15 6 7 D48 Maximum Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 3 Vin 48V no heat sink 600 lfm Natural Convection 40 10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C 20 USQ Models USQ 24 4 2 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink Ambient Temperature C USQ 24 4 2 D24 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 24V no heat sin
16. arity Positive polarity devices P suffix are enabled when pin 2 is left open or is pulled high 2 5 5V applied with respect to Input pin 1 lin lt 150A typical Positive polarity devices are disabled when pin 2 is pulled low 0 0 8V with respect to Input lin lt 800pA Negative polarity devices are off when pin 2 is high open and on when pin 2 is pulled low See Figure 4 EQUIVALENT CIRCUIT FOR POSITIVE AND NEGATIVE LOGIC MODELS INPUT 5V ON OFF CONTROL CONTROL 200k Figure 4 Driving the Remote On Off Control Pin Dynamic control of the remote on off function is best accomplished with a mechanical relay or an open collector open drain drive circuit optically isolated if appropriate The drive circuit should be able to sink appropriate current see Performance Specifications when activated and withstand appropriate voltage when deactivated Current Limiting When power demands from the output falls within the current limit inception range for the rated output current the DC DC converter will go into a current limiting mode In this condition the output voltage will decrease propor tionately with increases in output current thereby maintaining a somewhat constant power dissipation This is commonly referred to as power limiting Current limit inception is defined as the point where the full power output voltage falls below the specified tolerance If the load current being drawn from the conv
17. ce 100MQ Isolation Capacitance 650pF Current Limit Inception 90 Vour 19 1 2Vour 22 30 Amps 26A typical 1 5 1 8 2 5 3 3 5Vour 22 29 Amps 26A typical 12Vout 9 2 10 5 Amps 9 9A typical 15Vout 7 6 8 9 Amps 8 25A typical 18Vour 6 7 75 Amps 6 5A typical 24Vour 4 8 6 Amps 5 5A typical Short Circuit Current Hiccup Duration Continuous USQ Models Overvoltage Protection Magnetic feedback 1 5Vour 2 2 Volts 1 8Vour 2 7 Volts 2 5Vour 3 8 Volts 3 3Vour 4 9 Volts 5Vour 6 4 Volts 12Vour 15 Volts 15Vour 20 Volts 18Vour 22 5 Volts 24Vour 30 Volts Dynamic Characteristics Dynamic Load Response 1 See Dynamic Load Response under Technical Notes Start Up Time 12 VIN to VOUT 5msec typical 8msec maximum On Off to Vout 5msec typical 8msec maximum Switching Frequency 11 Calculated MTBF 13 gt 2 5 million hours Operating Temperature Ambient 4 14 Without Derating Model and air flow dependent With Derating To 110 C baseplate Baseplate Temperature 904 Maximum Allowable 110 C Thermal Shutdown 115 122 C 118 C typical Physical Dimensions 1 45 x 2 28 x 0 40 36 8 x 57 9 x 10 2mm Case Material Cast aluminum Baseplate Material Aluminum Shielding Neither the aluminum case nor baseplate are connected to a package pin Pin Material Brass solder coated Weight 1 52 ounces 43 grams Primary to Secondary Insulation Level Basic 10 n 12 13
18. ciency T Vn 48V 70 Vin 75V 65 60 2 4 6 8 10 12 14 16 18 20 Load Current Amps Start Up from Vin VIN 48V louT 20A Cour 10pF tantalum 1uF ceramic Input pin 3 20V div 1V div 2msec div Start Up from Remote On Off Control VIN 48V louT 20A Cour 10pF tantalum 1uF ceramic Remote On Off Control pin 2 5V div 5Vour pin 8 1V div 2msec div Output Current Amps Output Current Amps Output Current Amps USQ 5 20 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink Low LFM ES 40 10 0 10 20 30 40 50 60 70 80 Ambient Temperature C USQ 5 20 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V 1 4 heat sink 22 90 100 20 18 200 Ifm 16 400 lim 600 Ifm 40 10 0 10 20 30 40 50 60 70 80 Ambient Temperature C USQ 5 20 D48 Maximum Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 4 Vin 48V no heat sink 90 100 600 Ifm 200 ifm P 400 lfm Natural Convection 40 10 0 10 20 30 40 50 60 70 80 Ambient Temperature
19. div 2msec div Output Current Amps USQ 1 2 20 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink Ambient Temperature C 11 USQ Series 20A SINGLE OUTPUT DC DC CONVERTERS Typical Performance Curves for 1 5Vour Models USQ 1 5 20 D48 Maximum Output Current vs Ambient Temperature USQ 1 5 20 D48 Efficiency vs Line Voltage Load Current 25 C Transverse air flow pin 1 to pin 3 Vin 48V no heat sink 85 80 200 Ifm Natural Convection 400 Ifm 14 t 600 Ifm 75 Efficiency 70 IN 48V Output Current Amps D 2 4 6 8 10 12 14 16 18 20 40 10 0 10 20 30 40 50 60 70 80 90 100 Load Current Amps Ambient Temperature C Start Up from Vin USQ 1 5 20 D48 Maximum Output Current vs Ambient Temperature VIN 48V IOUT 20A Cour 10pF tantalum 1uF ceramic Longitudinal air flow pin 1 to pin 4 Vin 48V no heat sink 600 lfm Input pin 3 20V div Natural Convection 400 lfm Output Current Amps S 1V div 1 5Vour pin 8 40 10 0 10 20 30 40 50 60 70 80 90 100 2msec div Ambient Temperature C Start Up from Remote On Off Control VIN 48V IOUT 20A Cour 10pF
20. ed trim equations The Current Limit Inception point is the output current level at which the USQ s power limiting circuitry drops the output voltage 1096 from its initial value See Output Current Limiting and Short Circuit Protection for more details See Dynamic Load Response under Technical Notes for detailed results including switching frequencies DATEL has performed extensive evaluations of Dynamic Load Response In addi tion to the 10pF Il 1yF external capacitors specifications are also given for 220pF Il 1pF external output capacitors for quick comparison purposes For the Start Up Time specifications output settling is defined by the output voltage having reached 1 of its final value MTBF are calculated using Telcordia Bellcore Method 1 Case 3 ground fixed conditions 40 C case temperature and full load conditions Contact DATEL for demonstrated life test data All models are fully operational and meet published specifications including cold start at 40 C 20A SINGLE OUTPUT DC DC CONVERTERS Absolute Maximum Ratings Input Voltage 24V models 48V models Continuous 39 Volts 81 Volts Transient 100msec 50 Volts 100 Volts Input Reverse Polarity Protection Input Current must be 5A 1 minute duration Fusing recommended Current limited Devices can withstand an indefinite output short circuit Output Current On Off Control Pin 2 Max Voltages Referenced to Input pin 1 0 3 to 7 V
21. emote On Off Control VIN 48V IOUT 20A Cour 10pF tantalum 1uF ceramic 2V div Remote On Off Control pin 2 3 3VouT pin 8 1V div 2msec div Output Current Amps Output Current Amps Output Current Amps USQ 3 3 20 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink 22 20 18 200 lfm 18 400 lim 14 600 Ifm 12 t t 10 Low LFM 10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C USQ 3 3 20 D48 Maximum Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 4 Vin 48V no heat sink 22 20 600 Ifm 18 200 lfm 16 14 Natural Convectio 12 10 10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C USQ 3 3 20 D48 Maximum Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 3 Vin 48V 1 4 heat sink 22 12 10 10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C 15 20A SINGLE OUTPUT DC DC CONVERTERS Typical Performance Curves for 5Vour Models USQ 5 20 D48 Efficiency vs Line Voltage Load Current 25 C 95 90 85 80 Vn 36V 75 Effi
22. er derating is based on maximum output current and volt age at the converter s output pins Use of the trim and sense functions can cause output voltages to increase thereby increasing output power beyond the USQ s specified rating or cause output voltages to climb into the output overvoltage region Therefore Vour at pins x lout lt rated output power The Trim pin pin 6 is a relatively high impedance node that can be suscep tible to noise pickup when connected to long conductors in noisy environ ments In such cases a 0 22yF capacitor can be added to reduce this long lead effect OUTPUT SENSE ON OFF CONTROL INPUT OUTPUT OUTPUT SENSE ON OFF CONTROL RTRIM DOWN 5 Nm OUTPUT Figure 6 Trim Connections To Decrease Output Voltages Using Fixed Resistors Trim Equations USQ 1 2 20 D48 1 308 Vo 0 793 Rre KQ 1413 Rn KQ 1413 Vo 1 2 12 Vo USQ 1 5 20 D48 6 23 Vo 1 226 7 64 Rt KQ 2 102 Rioo KO 77 102 USQ 1 8 20 D48 744 Vo 1 226 9 12 Rr kQ I 102 Raw kQ 7 102 USQ 2 5 20 D48 10 Vo 1 226 12 26 RT yr kQ 10 2 Rtpown KQ 10 2 Vo 2 5 2 5 Vo USQ 3 3 20 D48 13 3 Vo 1 226 16 31 Rre kQ 10 2 Rom KQ 10 2 Vo 3 3 33 Vo USQ 5 20 D24 D48 20 4 Vo 1 226 25
23. erter is significant enough the unit will go into a short circuit condition See Short Circuit Condition Short Circuit Condition When a converter is in current limit mode the output voltages will drop as the output current demand increases If the output voltage drops too low the magnetically coupled voltage used to develop primary side voltages will also drop thereby shutting down the PWM controller Following a time out period of 5 to 15 milliseconds the PWM will restart causing the output voltages to begin ramping to their appropriate values If the short circuit condition persists another shutdown cycle will be initiated This on off cycling is referred to as hiccup mode The hiccup cycling reduces the average output current thereby preventing internal temperatures from rising to excessive levels The USQ is capable of enduring an indefinite short circuit output condition Thermal Shutdown USQ converters are equipped with thermal shutdown circuitry If the internal temperature of the DC DC converter rises above the designed operating tem perature See Performance Specifications a precision temperature sensor will power down the unit When the internal temperature decreases below the threshold of the temperature sensor the unit will self start Output Overvoltage Protection The output voltage is monitored for an overvoltage condition via magnetic coupling to the primary side If the output voltage rises to a faul
24. i lzssbhesihilza Meese ll Sonate Sativa oth P P I I 1 1 1 T 1 i i i 1 i 1 i i 1 i i 1 i i 1 i 1 1 I i 1 i 1 1 1 i I ee eee ees ee eee eee Cee ee ee i i i 1 i 1 i i i i i 1 i 1 i i i i i 1 1 i i i i i 1 f 1 i i 1 1 1 1 1 1 1 1 O A poe e esee O i I 1 1 I I 1 i I l 1 I i I i i 1 i 1 1 1 1 i i i 1 i 1 i i fi 1 1 1 1 1 fi L o ul N o eo co N sdwy uung 1ndino Ambient Temperature C 17 USQ 12 8 3 D48 Efficiency vs Line Voltage and Load Current 95 90 85 E E a g 9 t gt 2 o 5 75 2 5 5 7 Vin 36V 2 3 o 65 Vin 48V 60 Vin 75V 55 0 83 166 249 332 415 498 581 664 747 83 Load Current Amps Start Up from Vin VIN 48V lOUT 8 3A Cour 10pF tantalum 1uF ceramic an E Input pin 3 4 iv o 20V div E l t 2 5 o 5 2 5 ds MEQUE 6 12Vour pin 8 5V div 2msec div 20A SINGLE OUTPUT DC DC CONVERTERS Typical Performance Curves for 12Vour Models USQ 12 8 3 D48 Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink M 600 tim 3 NEN LUE SS 2001fm Natural Convection 45 50 55 60 65 70 75 80 85 Ambient Temperature C USQ 12 8 3 D48 Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 3 Vin 48V no heat sink
25. ir respective output lines are used by the feedback control loop to regulate the output As such they are not low impedance points and must be treated with care in layouts and cabling Sense lines on a pcb should be run adjacent to dc signals preferably ground In cables and discrete wiring applications twisted pair or other techniques should be implemented USQ DC DC converters will compensate for drops between the output voltage at the DC DC and the sense voltage at the DC DC Vout Vour Sense Sense x 10 Vout Contact and PCB resistance losses due to IR drops OUTPUT SENSE Sense Current 6 LOAD Sense Return 7 lour Return 4 ON OFF CONTROL O INPUT OUTPUT Contact and PCB resistance losses due to IR drops Figure 19 Remote Sense Circuit Configuration Output overvoltage protection is monitored at the output voltage pin not the Sense pin Therefore excessive voltage differences between Vour and Sense in conjunction with trim adjustment of the output voltage can cause the overvoltage protection circuitry to activate see Performance Specifica tions for overvoltage limits Power derating is based on maximum output current and voltage at the converter s output pins Use of trim and sense functions can cause output voltages to increase thereby increasing output power beyond the USQ s specified rating or cause output voltages to climb into the output overvol
26. isolation 1500Vdc superior efficiency to 91 tight regula tion to 0 05 max line and load low noise to 50mVp p quick step response 200usec and an array of protection features I O protection includes input under voltage lockout and reverse polarity protection as well as output overvoltage pro tection current limiting short circuit protection and thermal shutdown The USQ functionality suite includes remote on off control positive or negative polarity output trim 10 20 and output sense functions All USQ DC DC s are designed to meet the BASIC insulation requirements of UL1950 and EN60950 and all 48 Volt models will carry the CE mark Safety certifica tions as well as EMC compliance testing and qualification testing including HALT have been successfully completed Contact DATEL for copies of the latest reports DATEL Inc Mansfield MA 02048 USA VIN 3 VN SENSE 7 VouT 8 x o CONTROL 1 INPUT UNDERVOLTAGE INPUT OVERVOLTAGE AND OUTPUT OVERVOLTAGE COMPARATORS REMOTE ON OFF o PWM CONTROLLER OPTO ISOLATION REFERENCE amp ERROR AMP Can be ordered with positive standard or negative optional polarity CONTROL 2 Tel 508 339 3000 800 233 2765 Fax 508 339 6356 Figure 1 Simplified Schematic Email sales O datel com High Density Quarter Brick In
27. k 4 2A Cour 10pF tantalum 1uF ceramic me Ambient Temperature C Remote On Off Control pin 2 Start Up from Remote On Off Control 24Vour pin 8 Typical Performance Curves for 24Vour Models SINGLE OUTPUT DC DC CONVERTERS 20A o Lo o eo N FR 9 ouaa 65 60 55 0 42 95 90 o Lo eo N oua191443 E 9 gt vt 1 z z iac gt 2 3 amp S sdwy juasiny 1ndino sdwy juaJinog 1ndino N N o o io io N N gt co co o e g e E E t eo E e 9 o SI Q 5 D 5 e BE E O A o e o Im e ut ke 3 3 E 9 p a o ime 9 9 Lu Eg e Reeve pl NW 3 S 3 Et gt EE gt E gt 2 a 3 E 5 ex c gt RE 3 D d amp E o o Ds 3 gt S AS 5 S bas g5 3 e k o o d 8 m E un S a A gt 5 P gt 5 or Y 2 u ca 3 NO 2 9 NO EI A N gt E 1 N g gt n E Bo Z 1 o 9 e z c 0 or o gt E o o gt o at S ui S IN fee A CIT HE moos ui um ui ts zi e N s N gt t A E2 Q eS N E e gt 3 Ei 3 ac o o ST ee e q q fie 8 8 EE SSI D 23 nc 0 42 65 60 2 gt o N 2 he gt o 2msec div 21 20A SINGLE OUTPUT DC DC CONVERTERS O O e Input Output X Sense e Remote On Off Output Trim Sense LOCATE THERMOCOU
28. olts Storage Temperature 40 to 125 C Lead Temperature Soldering 10 sec 300 C These are stress ratings Exposure of devices to any of these conditions may adversely affect long term reliability Proper operation under conditions other than those listed in the Performance Functional Specifications Table is not implied nor recommended TECHNICAL NOTES Removal of Soldered USQ s from PCB s Should removal of the USQ from its soldered connection be needed it is very important to thoroughly de solder the pins using solder wicks or de soldering tools At no time should any prying or leverage be used to remove boards that have not been properly de soldered first Input Source Impedance USQ converters must be driven from a low ac impedance input source The DC DC s performance and stability can be compromised by the use of highly inductive source impedances The input circuit shown in Figure 2 is a practical solution that can be used to minimize the effects of inductance in the input traces For optimum performance components should be mounted close to the DC DC converter The 24V models can benefit by increasing the 33yF external input capacitors to 100uF if the application has a high source impedance 1 0 Filtering Input Ripple Current and Output Noise All models in the USQ Series are tested specified for input ripple current also called input reflected ripple current and output noise using the circuits and lay
29. out shown in Figures 2 and 3 TO OSCILLOSCOPE CURRENT INPUT Cin 33yF ESR lt 700mMQ 100kHz CBus 220pF ESR lt 100mQ O 100kHz Leus 12uH Figure 2 Measuring Input Ripple Current External input capacitors Cin in Figure 2 serve primarily as energy storage elements They should be selected for bulk capacitance at appropriate frequencies low ESR and high rms ripple current ratings The switching nature of DC DC converters requires that dc voltage sources have low ac impedance as highly inductive source impedance can affect system stability In Figure 2 Caus and Laus simulate a typical dc voltage bus Your specific System configuration may necessitate additional considerations In critical applications output ripple noise also referred to as periodic and random deviations or PARD can be reduced below specified limits using filtering techniques the simplest of which is the installation of additional external output capacitors Output capacitors function as true filter elements and should be selected for bulk capacitance low ESR and appropriate frequency response In Figure 3 the two copper strips simulate real world pcb impedances between the power supply and its load Scope measurements should be made using BNC connectors or the probe ground should be less than inch and soldered directly to the fixture All external capacitors should have appropriate voltage ratings and be located as close to the conver
30. p DATEL China Shanghai China Tel 011 86 51317131 ISO 9001 REGISTERED DS 0493D 10 04 E mail davidx datel com DATEL makes no representation that the use of its products in the circuits described herein or the use of other technical information contained herein will not infringe upon existing or future patent rights The descriptions contained herein do not imply the granting of licenses to make use or sell equipment constructed in accordance therewith Specifications are subject to change without notice The DATEL logo is a registered DATEL Inc trademark 22
31. reshold Once operating devices will turn off when the applied voltage drops below the Undervoltage Shutdown point Devices will remain off as long as the undervoltage condition continues Units will automatically re start when the applied voltage is brought back above the Start Up Threshold The hyster esis built into this function avoids an indeterminate on off condition at a single input voltage See Performance Functional Specifications table for actual limits 20A SINGLE OUTPUT DC DC CONVERTERS USQ Models Start Up Time The Vin to Vout Start Up Time is the interval between the point at which a ramping input voltage crosses the Start Up Threshold voltage and the point at which the fully loaded output voltage enters and remains within it specified 1 accuracy band Actual measured times will vary with input source impedance external input capacitance and the slew rate and final value of the input voltage as it appears to the converter The On Off to Vout Start Up Time assumes the converter is turned off via the Remote On Off Control with the nominal input voltage already applied The specification defines the interval between the point at which the converter is turned on released and the point at which the fully loaded output voltage enters and remains within its specified 1 accuracy band On Off Control The primary side Remote On Off Control function pin 2 can be specified to operate with either positive or negative pol
32. resistor tied from the Output Trim pin 6 to the Sense pin 5 to increase the output voltage A resistor connected from the Output Trim pin 6 to the Sense pin 7 will decrease the ouput voltage The negative trim formula values for USQ 1 2 1 5 1 8 Volt devices with a 48 Volt input and negative logic reads A Bx AV RTRM AV Model Trim Up Trim Down A B A B USQ 1 8 20 D48ND 0 57 1 0 2711 1 4676 USQ 1 5 20 D48ND 0 283 0 121 0 065 0 352 USQ 1 2 20 D48ND 0 5928 3 01 0 5686 3 96 where AV is the absolute value of the output voltage change desired Floating Outputs Since these are isolated DC DC converters their outputs are floating with respect to their input Designers will normally use the Output pin 4 as the ground return of the load circuit You can however use the Output pin 8 as ground return to effectively reverse the output polarity Remote Sense Note The Sense and Vout lines are not internally connected to each other Therefore if the sense function is not used for remote regulation the user must connect the Sense to Vout and Sense to Vour at the DC DC converter pins USQ series converters employ a sense feature to provide point of use regu lation thereby overcoming moderate IR drops in pcb conductors or cabling The remote sense lines carry very little current and therefore require a mini mal cross sectional area conductor The sense lines which are capacitively coupled to the
33. t condition which could be damaging to the load circuitry see Performance Specifica tions the sensing circuitry will power down the PWM controller causing the output voltage to decrease Following a time out period the PWM will restart causing the output voltage to ramp to its appropriate value If the fault condition persists and the output voltages again climb to excessive levels the overvoltage circuitry will initiate another shutdown cycle This on off cycling is referred to as hiccup mode Input Reverse Polarity Protection If the input voltage polarity is accidentally reversed an internal diode will become forward biased and likely draw excessive current from the power source If the source is not current limited lt 5A nor the circuit appropriately fused it could cause permanent damage to the converter Input Fusing Certain applications and or safety agencies may require the installation of fuses at the inputs of power conversion components Fuses should also be used if the possibility of a sustained non current limited input voltage polar ity reversal exists For DATEL USQ Series DC DC Converters slow blow fuses are recommended with values no greater than the following Vout Range Fuse Value D48 Fuse Value D24 1 2Vout Models 1 5 Amps 1 5Vout Models 2 5 Amps 1 8Vour Models 3 Amps 2 5Vout Models 3 5 Amps 3 3Vour Models 4 Amps 5 to 24Vour Models 6 Amps 10 Amps See Performance Specifications for
34. tage region Therefore Vour at pins x lour lt rated output power 20A SINGLE OUTPUT DC DC CONVERTERS Dynamic Load Response and Switching Frequency DATEL has performed extensive evaluations under assorted capacitive load conditions of the dynamic load capabilities i e the transient or step response of USQ Series DC DC Converters In particular we have evalu ated devices using the output capacitive load conditions we use for our routine production testing 10uF tantalums in parallel with 1uF ceramics as well as the load conditions many of our competitors use 220uF tantalums in parallel with 1uF ceramics when specifying the dynamic performance of their devices To avoid the added cost of constantly changing test fixtures we have veri fied during our device characterization verification testing that 10096 testing under the former conditions the 100pF Il 1uF load which we guarantee correlates extremely well with the latter conditions for which we and most of our competitors simply list typicals If you have any questions about our test methods or would like us to perform additional testing under your specific load conditions please contact our Applications Engineering Group Load Conditions D Performance Specifications 1 2Vout Load Step 50 to 75 of lour Max Peak Deviation typ 115mV Settling Time to 1 of Final Value max 200us Cour 10pF Il 1pF 10yF Il tyF Load Step
35. tantalum 1uF ceramic 2vidiv e Remote On Off Control pin 2 1V div 1 5VouT pin 8 2msec div 12 20A SINGLE OUTPUT DC DC CONVERTERS US Models Typical Performance Curves for 1 8Vour Models USQ 1 8 20 D48 Efficiency vs Line Voltage Load Current O 25 C 90 85 _ 80 amp e S 75 Vin 36V 9 E T 70 Vn 48V 65 T Vin 75V 60 2 4 6 8 10 12 14 16 18 20 Load Current Amps Start Up from Vin VIN 48V IOUT 20A Cour 10pF tantalum 1uF ceramic Input pin 3 20V div 1V div 2msec div Start Up from Remote On Off Control VIN 48V IOUT 20A Cour 10pF tantalum 1uF ceramic 2V div Remote On Off Control pin 2 1V div 1 8Vour pin 8 2msec div Output Current Amps Output Current Amps 22 20 18 16 14 12 10 22 20 18 16 14 12 10 USQ 1 8 20 D48 Maximum Output Current vs Ambient Temperature Transverse air flow pin 1 to pin 3 Vin 48V no heat sink 200 ifm 400 Ifm Natural Convection 600 Ifm 10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C USQ 1 8 20 D48 Maximum Output Current vs Ambient Temperature Longitudinal air flow pin 1 to pin 4 Vin 48V no heat sink Natural Convection 10 0 10 2
36. ter as possible Temperature variations for all relevant parameters should be taken into consideration OS CON organic semiconductor capacitors www sanyo com can be especially effective for further reduction of ripple noise The most effective combination of external I O capacitors will be a function of line voltage and source impedance as well as particular load and layout conditions Our Applications Engineers can recommend potential solutions and discuss the possibility of our modifying a given device s internal filtering to meet your specific requirements Contact our Applications Engineering Group for additional details 7 COPPER STRIP SENSE OUTPUT E ii ii zi C1 C2 SCOPE RLoAD Fol e OUTPUT COPPER STRIP SENSE C1 1pF CERAMIC C2 100F TANTALUM LOAD 2 3 INCHES 51 76mm FROM MODULE Figure 3 Measuring Output Ripple Noise PARD Input Overvoltage Shutdown Standard USQ DC DC converters do not feature overvoltage shutdown They are equipped with this function however Many of our customers need their devices to withstand brief input surges to 100V without shutting down Consequently we disabled the function Please contact us if you would like it enabled at any voltage for your application Start Up Threshold and Undervoltage Shutdown Under normal start up conditions the USQ Series will not begin to regulate properly until the ramping input voltage exceeds the Start Up Th
37. ternet www datel com 20A SINGLE OUTPUT DC DC CONVERTERS Performance Specifications and Ordering Guide no minimum load requirements and will regulate within spec under no load conditions with perhaps a slight increase in ripple noise Additionally 1 2V 1 5V 1 8V 2 5V and 5V models are unconditionally stable including start up and short circuit shutdown situations with capacitive loads up to 25 0004F The 12V 15V 18V and 24V models are unconditionally stable with capacitive loads up to 470yF at full load Contact DATEL for Vin ranges other than those listed The two listed dc currents are for the following conditions full load nominal input voltage and full load low line voltage The latter is usually the worst case condition for input current Quarter Brick Package Nominal Output Voltage 1 2 1 5 1 8 2 5 3 5 12 15 18 24 Volts Maximum Rated Output Current in Amps O A D Var lu R N mVp p 9 Regulation Max VwNom Range NO Case Model Volts Amps Typ Max Line Load Y Volts O Volts Amps Efficiency Pinout USQ 1 2 20 D48 12 20 25 50 0 05 0 05 48 36 75 0 63 0 87 80 C33 P32 USQ 1 5 20 D48 1 5 20 40 65 0 05 0 05 48 36 75 0 75 1 03 85 C33 P32 USQ 1 8 20 D48 1 8 0 88 1 23 85 C33 P32 USQ 2 5 20 D48 2 5 36 75 1 18 1 62 87 C33 P32 USQ 3 3 2
38. ver the 0 100 range All models in the USQ Series have U Unipolar Single Contact DATEL Remote On Off Control Polarity Add P for positive polarity pin 2 open converter on Add N for negative polarity pin 2 open converter off Input Voltage Range Contact DATEL for availability and further information on these models eo oo MECHANICAL SPEC These models are discontinued Refer to DATEL s ULQ and UVQ series for alternate models D48 36 75 Volts 48V nominal D24 18 36 Volts 24V nominal E 2 28 2 57 91 2 28 57 91 A BARCODE AND 1 860 SERIAL NUMBER pa 47 24 APPLIED TO T dn THIS SURFACE 0 40 MAX MODEL NUMBER ON 10 16 l OPPOSITE SURFACE O O Y 1 Optional PINS 1 3 5 7 heath Heat Sink 108 145 0 040 0 001 1 016 0 025 0 15 MIN 3 81 STANDOFF ENSA 7 3 81 26 16 36 83 0 015 0 38 0 062 0 001 1 575 0 025 OPEN FRAME CAST ALUMINUM CASE I 2 0
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