Delta Electronics Series H48SA User's Manual
Contents
1. 2 Rtrim down 20 kQ Rtrim down 3 kQ The typical resistor value can be seen in below figure22 Output voltage Resistor value kQ Figure 22 Trim resistor value example for popular output voltages The output voltage can be increased by both the remote sense and the trim however the maximum increase is the larger of either the remote sense or the trim not the sum of both When using remote sense and trim the output voltage of the module is usually increased which increases the power output of the module with the same output current Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power i A THERMAL CONSIDERATIONS Thermal management is an important part of the Thermal Derating mm System design To ensure proper reliable operation sufficient cooling of the power module is needed over Heat can be removed by increasing airflow over the the entire temperature range of the module Convection module The module s maximum device temperature is to lli cooling is usually the dominant mode of heat transfer be defined and the measured location is illustrated in Figure 24 To enhance system reliability the power Hence the choice of equipment to characterize the module should always be operated below the maximum thermal performance of the power module is a wind operating temperature If the temperature exceeds the tunnel maximum module t2. Delphi Series H48SA Half Brick Family DC DC Power Modules 48V in 12V 25A out The Delphi Series HA8SA Half Brick 48V input single output isolated open frame DC DC converters are the latest offering from a world leader in power systems technology and manufacturing Delta Electronics Inc This product family provides up to 300 watts of power or up to 25A of output current in an industry standard footprint This product represents the next generation of design technology required by today s leading edge circuitry With creative design technology and optimization of component placement these converters possess outstanding electrical and thermal performance as well as extremely high reliability under highly stressful operating conditions Typical efficiency of the 12V 300W module is better than 93 2 and all modules are fully protected from abnormal input output voltage current and temperature conditions The Delphi Series converters meet all safety requirements with basic insulation A variety of optional heatsinks are available for extended thermal operation DATASHEET DS H48SA12025 05052008 1 FEATURES High efficiency 93 2 12V 25A Standard footprint 58 4 x 61 0 x 11 2 mm 2 30 x2 40 x0 44 Industry standard pin out Single board construction Fixed frequency operation 2250V Isolation Basic insulation Monotonic startup into normal and pre bias loads Fully protected input UVLO output OVP OCP
3. TRIM g i Le ge Y eS e AAN ololojl e Cy e CO CO OJS fy hore d Se x w SES 3 O DO e CN me M VV E sl C uw Mah V gt DEL ae Re OINK e Cx N b CN SES L I iu i LLALLLLLLLL L 2 L2 SL LN ZAL T AON Li e PE E CO m pe ME eg LO x i j CTO R DALM x lt C23 SI Vk OD V IR DIFAIN LI EN 3 e C i e gd C S i N sa lass MV Le Ne n a ae 5 99 ZZ CX ma A HATNET TA AC 7 IN YDT A ES Aff n 70 VEN A s cd eu s Ad CA La ME LUJU I JUIA xi C o NER T DA rp el Ex AIP Fatz SOLDER PLATED COPPER SOLDER PLATED COPPER ULL X LAIEV NN LIIN N N sA Ly N FN Jl NAT I EN f 7 X f VY 7 s 99 Ps j TH CON EN PUO E H Oll LD 8 R X X P WI H L arp uit e H CM YE R N H LUJU YO J HYYLVE VVI Q OVU PP OTL LE K N NOTES DIMENSIONS TOLERANCES Pin No 1 2 3 4 5 6 T 8 9 Notes Name Vin ON OFF CASE Vin Vout SENSE TRIM SENSE Vout L2 ARE SIDE VIEW EN AV UE V VV IN MILLIMETERS AND Rei X Xmmz0 5mm X XX in x0 02 in X XXmmzt0 25mm X XXX Function Positive input voltage Remote ON OFF Case pin Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output voltage 1
4. 300LFM NI SC LL 5 d NENNEN E E Y C Q 400LFM 0 E 25 30 35 40 45 50 55 60 65 70 75 80 85 L 4 h GC Ambient Temperature Figure 24 Temperature measurement location for openframe Figure 26 Output current vs ambient temperature and air version The allowed maximum hot spot temperature is velocity Vin 48V Vout 12V Openframe Version Either defined at 122 C Orientation H48SA12025 standard Output Current vs Ambient Temperature and Air Velocity Output Current A vVin 48V Either Orientation With Heatspreader ZC a 25 20 j 8 S g MU Natural NS Convection S Uo LQ 100LFM 200LFM HL CN 10 mE LF j E i 800LFM edere us Ene AC CN 400LFM S O C puc REM d IE Y O O 600LFM 2 EN 1 aa P 25 30 35 40 45 50 55 60 65 70 75 80 a kd E 8 Ambient Temperature L9 J Figure 25 Temperature measurement location for heatspreader Figure 27 Output current vs ambient temperature and air version The allowed maximum hot spot temperature is defined velocity Vin 48V Vout 12V Heatspreader version Either at 109 C Orientation 11 DS H48SA12025 05052008 w d 3 X 26 4 2 50 fl Z gt arn SUN ff Ne IN 4 8 0 19 J 48 501 JIJU i Qe 2 ON OFF CHA OTI e A D des zone I XT 1T d Vind Vout 19 m E C N SENSE4 8
5. Pins 1 4 6 8 are 1 00mm 0 040 diameter Pins 5 and 9 are 2 00mm 0 079 diameter All pins are copper with Tin plating DS_H48SA12025 05052008 MECHANICAL DRAWING WITH HEATSPREADER 4M CI CN S GE LO 5 1 0 20 48 26 1 900 M3X0 5 THREAD MOUNTING HOLES P Tu us 0 48 Nam 4 3 Ib in 4x m 3 0 0 127 MAX 5 SCREW INSERTION LENGTH R lot 00 O LO m A E c ta N Se pm A Ml OL CUSTOMER BOARD Suc OC Pe cp eN Y 1 00 0 040 DIA 2 00 0 079 DIA E SOLDER PLATED COPPE Ga SOLDER PLATED COPPER 2x WITH 2 0 0 08 SHOULDER WITH 90 14 SHOULDER IDE VIEW 58 4 2 30 4 8 0 19 48 30 1 900 A 4 Vin Vout 8 NC E 7 7 7 7 R xo n 3 CASE SENSE 6 Co eae ee i M TRIM 17 e 2 ON OFF SENSE 8 It eue as O A Um _ Vout l9 Yo y PEN CO ed O o eO oOo OF S SELON og Il o ol o S dL n ZI EE BOTTOM VIEW NOTES JMENSIONS ARE IN MILLIMETERS AND INCHES TOLERANCES X Xmmz0 5mm X XX in 0 02 in X XXmmz0 25mmQ
6. Voltage protection circuit If the output voltage exceeds the OVP set point the modules will automatically shut down and enter hiccup mode or latch mode which is optional For hiccup mode the module will try to restart after shutdown If the over voltage condition still exists the module will shut down again This restart trial will continue until the over voltage condition is corrected Hiccup mode is default mode For latch mode the module will latch off once it shutdown The latch is reset by either cycling the input power or by toggling the on off signal for one second Over Temperature Protection The over temperature protection consists of circuitry that provides protection from thermal damage If the temperature exceeds the over temperature threshold the module will shut down and enter in auto restart mode or latch mode which is optional For auto restart mode the module will monitor the module temperature after shutdown Once the temperature is within the specification the module will be auto restarted Auto restart mode is default mode For latch mode the module will latch off once it shutdown The latch is reset by either cycling the input power or by toggling the on off signal for one second Remote On Off The remote on off feature on the module can be either negative or positive logic Negative logic turns the module on during a logic low and off during a logic high Positive logic turns the modules on during
7. a logic high and off during a logic low DS_H48SA12025 05052008 Remote on off can be controlled by an external switch between the on off terminal and the Vi terminal The switch can be an open collector or open drain Sense o Trim o Sense o Distribution resistor Figure 18 Remote on off implementation Remote Sense Remote sense compensates for voltage drops on the output by sensing the actual output voltage at the point of load The voltage between the remote sense pins and the output terminals must not exceed the output voltage sense range given here Vo Vo SENSE SENSE lt 10 x Vout This limit includes any increase in voltage due to remote sense compensation and output voltage set point adjustment trim o Vi Vo 4 a Sense o oON OFF Trim o R Sense o o Vi Vo e L w Distribution resistor Figure 19 Effective circuit configuration for remote sense operation If the remote sense feature is not used to regulate the output at the point of load please connect SENSE to Vo and SENSE to Vo at the module The output voltage can be increased by both the remote sense and the trim however the maximum increase is the larger of either the remote sense or the trim not the sum of both When using remote sense and trim the output voltage of the module is usually increased which increases the power output of the module with the same output
8. stability A low ac impedance input source is recommended If the source inductance is more than a few uH we advise adding a 33 to 100 uF electrolytic capacitor ESR 0 7 O at 100 kHz mounted close to the input of the module to improve the stability Layout and EMC Considerations Delta s DC DC power modules are designed to operate in a wide variety of systems and applications For design assistance with EMC compliance and related PWB layout issues please contact Delta s technical support team An external input filter module is available for easier EMC compliance design Below is the reference design for an input filter tested with H48SA12025NN A to meet class B in CISSPR 22 Schematic and Components List SES 000 1 ext Cin kb j H48SA12025 L1 L2 wu A0 vine vor Vin Vo CX is 4 7uF ceramic cap CX is 4 7uF ceramic cap CY is 3 3nF ceramic cap CY1 is 4 7nF ceramic cap L1 is common mode inductor L1 0 08mH L2 is common mode inductor L1 0 24mH Test Result Test result is in compliance with CISPR 22 class B which is shown as below Te iili eg Bc E mm LU SIS ilucie i 1 d In rn ni f TT pes Frequency Hz Vin 48V lo 25A Yellow line is quasi peak mode Blue line is average mode DS H485SA12025 05052008 Safety Considerations The power module must be installed in compliance with the spacing and separation requirement
9. CURRENT A OUTPUT CURRENT A Figure 1 Efficiency vs load current for minimum nominal and Figure 2 Power dissipation vs load current for minimum maximum input voltage at 25 C Vout 12V nominal and maximum input voltage at 25 C Vout 12V 30 25 20 EFFICIENCY 96 POWER DISSIPATION W a 5 10 15 20 25 0 5 10 15 20 25 OUTPUT CURRENT A OUTPUT CURRENT A Figure 3 Efficiency vs load current for minimum nominal and Figure 4 Power dissipation vs load current for minimum maximum input voltage at 25 C Vout 9 6V nominal and maximum input voltage at 25 C Vout 9 6V DS H48SA12025 05052008 30 25 20 EFFICIENCY 96 POWER DISSIPATION W o 70 5 65 60 0 5 10 15 20 25 0 5 10 15 20 25 OUTPUT CURRENT A OUTPUT CURRENT A Figure 5 Efficiency vs output voltage for minimum nominal Figure 6 Power dissipation vs output voltage for minimum and maximum input voltage at 25 C Vout 3 2V nominal and maximum input voltage at 25 C Vout 3 2V Mos Output Voltage V C M X M 1 0 30 0 31 3 33 6 35 0 40 0 45 0 500 55 0 60 0 65 0 70 0 75 0 Output Current A Figure 7 Typical input characteristics at room
10. OCGXXX in 0 010 in DS H48SA12025 05052008 Da Mi PART NUMBERING SYSTEM H 48 S A 120 25 N N RENE OA Voltage Outputs Series Voltage Current Logic Length fo Gar 48V S Single A Advanced 120 12V 25 25A N Negative N 0 145 F RoHS 6 6 Standard Functions Brick P Positive Lead Free H with Heatspreader MODEL LIST Part Number OUTPUT EFF 100 LOAD 11A 12V 25A CONTACT www delta com tw dcdc USA Europe Asia amp the rest of world Medie 888 335 8201 Phone 41 31 998 53 11 i di deel ext 6220 ast Loast ax West Coast 888 335 8208 PAK ee Email DCDC delta com tw Fax 978 656 3964 Email DCDC delta es com Email DCDC delta corp com WARRANTY Delta offers a two 2 year limited warranty Complete warranty information is listed on our web site or is available upon request from Delta Information furnished by Delta is believed to be accurate and reliable However no responsibility is assumed by Delta for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights of Delta Delta reserves the right to revise these specifications at any time without notice DS _H48SA12025 05052008
11. OTP No minimum load required Wide output trim range 20 10 ISO 9001 TL 9000 ISO 14001 QS 9000 OHSAS 18001 certified manufacturing facility UL cUL 60950 1 US amp Canada Recognized and TUV EN60950 1 Certified CE mark meets 73 23 EEC and 93 68 EEC directives OPTIONS Positive on off Heatspreader available for extended operation APPLICATIONS Telecom DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial Test Equipment A DELTA Delta Electronics Inc A s TECHNICAL SPECIFICATIONS TA225 C airflow rate 300 LFM V z48Vdc nominal Vout unless otherwise noted PARAMETER NOTES and CONDITIONS H48SA12025 Standard Min Typ Max Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient 100ms 100ms 100 Vdc Operating Device Temperature Openframe Please refer to fig24 for the measuring point 40 122 C Operating Device Temperature Heatspreader Please refer to fig25 for the measuring point 40 109 C Storage Temperature 55 125 C Input Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 5 Vdc Input Under Voltage Lockout Turn On Voltage Threshold 325 34 35 5 Vdc Turn Off Voltage Threshold 30 5 32 33 5 Vdc Lo
12. ckout Hysteresis Voltage 1 2 3 Vdc Maximum Input Current Vin 36V 100 Load 9 5 A No Load Input Current 170 240 mA Off Converter Input Current 18 mA Inrush Current I t With 100uF external input cap 1 A S Input Terminal Ripple Current RMS With 100uF 0 10hm input cap 100 Load 0 42 A Input Reflected Ripple Current Pk Pk thru 12uH inductor 5Hz to 20MHz 100 Load 7 mA Input Voltage Ripple Rejection 120 Hz 50 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin 48V lo lo max Tc 25 C 11 82 12 12 18 Vdc Output Voltage Regulation Over Load lo lo min to lo max 10 mV Over Line Vin 36V to 75V 10 mV Over Temperature Tc 40 C to 100 C 120 mV Total Output Voltage Range over sample load line and temperature 11 64 12 36 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak to Peak 100 Load 1uF ceramic 10uF tantalum 60 120 mV RMS 100 Load 1uF ceramic 10uF tantalum 30 60 mV Operating Output Current Range Full input range 0 25 A Operating Output Power Range Full input range 0 300 W Output DC Current Protection Full input range 110 150 DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V 10uF Tan amp 1uF Ceramic load cap 0 1A us Positive Step Change in Output Current 5096 lo max to 7596 lo max 400 mV Negative Step Change in Output Current 75 lo max to 50 lo max 400 mV Settling Time within 1 Vout nominal 400 uS Turn On Transient Start Up Time From On Off Control 12 28 mS Start Up Time From Input 12 28 mS Ma
13. current Care should be taken to ensure that the maximum output power does not exceed the maximum rated power i FEATURES DESCRIPTIONS CON wm Output Voltage Adjustment TRIM To increase or decrease the output voltage set point We modules may be connected with an external resistor between the TRIM pin and either the SENSE or SENSE The TRIM pin should be left open if this feature is not used Vol Sense Trim Load sense Vo Figure 20 Circuit configuration for trim up increase output voltage If the external resistor is connected between the TRIM and SENSE pins the output voltage set point increases Fig 20 The external resistor value required to obtain a percentage of output voltage change A is defined as 12 ek dE A 100 Rtrim_up E kQ A Ex When trim up to 13 2V from 12V A 100 13 2 12 12 10 E 8 Jaw 10 100 Rtrim_up 2 KIT 10 Htrim up 95 755 kQ DS H48SA12025 05052008 Vo Sense R Load Trim Sense Vo Figure 21 Circuit configuration for trim down decrease output voltage If the external resistor is connected between the TRIM and SENSE the output voltage set point decreases Fig 21 The external resistor value required to obtain a percentage of output voltage change is defined as 100 Rm down e e A Ex When trim down to 9 6V from 12V A 100 12 9 6 12 20 100
14. emperature reliability of the unit may be affected Thermal Testing Setup PWB FACING PWB MODULE Delta s DC DC power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment This type of equipment commonly uses vertically mounted circuit cards in cabinet racks in which e ee y AND AMBIENT the power modules are mounted TEMPERATURE MEASURED BELOW THE MODULE 50 8 2 0 The following figure shows the wind tunnel characterization setup The power module is mounted on a test PWB and is vertically positioned within the wind tunnel The space between the neighboring PWB and the top of the power module is constantly kept at 6 35mm 0 25 12 7 0 5 Note Wind Tunnel Test Setup Figure Dimensions are in millimeters and Inches Figure 23 Wind tunnel test setup DS H48SA12025 05052008 THERMAL CURVES 5 of H48SA12025 Standard Output Current vs Ambient Temperature and Air Velocity poe ad s d Output Current A Q Vin 48V Either Orientation E 25 600LFM zu u 500LFM iig 20 T i 1 mana es E Natural 8 Bee Convection b h EN Er TE 15 _ b 7 K SE i 100LFM ce qnm ij Lom 10 zi gt E ps i E
15. h 30A maximum rating to be installed in the ungrounded lead A lower rated fuse can be used based on the maximum inrush transient energy and maximum input current Soldering and Cleaning Considerations Post solder cleaning is usually the final board assembly process before the board or system undergoes electrical testing Inadequate cleaning and or drying may lower the reliability of a power module and severely affect the finished circuit board assembly test Adequate cleaning and or drying is especially important for un encapsulated and or open frame type power modules For assistance on appropriate soldering and cleaning procedures please contact Delta s technical support team i FEATURES DESCRIPTIONS Over Current Protection The modules include an internal output over current zi protection circuit If the output current exceeds the OCP set point the modules will automatically shut down and enter hiccup mode or latch mode which is optional For hiccup mode the module will try to restart after shutdown If the overload condition still exists the module will shut down again This restart trial will continue until the overload condition is corrected Hiccup mode is default mode For latch mode the module will latch off once it shutdown The latch is reset by either cycling the input power or by toggling the on off signal for one second Over Voltage Protection The modules include an internal output over
16. s of the end users safety agency standard i e UL60950 CAN CSA C22 2 No 60950 00 and EN60950 2000 and IEC60950 1999 if the system in which the power module is to be used must meet safety agency requirements When the input source is 60 Vdc or below the power module meets SELV safety extra low voltage requirements If the input source is a hazardous voltage which is greater than 60 Vdc and less than or equal to 75 Vdc for the module s output to meet SELV requirements all of the following must be met The input source must be insulated from any hazardous voltages including the ac mains with reinforced insulation e One Vi pin and one Vo pin are grounded or all the input and output pins are kept floating The input terminals of the module are not operator accessible ev If the metal baseplate is grounded the output must be also grounded A SELV reliability test is conducted on the system where the module is used to ensure that under a single fault hazardous voltage does not appear at the module s output Do not ground one of the input pins without grounding one of the output pins This connection may allow a non SELV voltage to appear between the output pin and ground The power module has extra low voltage ELV outputs when all inputs are ELV This power module is not internally fused To achieve optimum safety and system protection an input line fuse is highly recommended The safety agencies require a fuse wit
17. temperature Figure 8 Turn on transient at full rated load current 4ms div Top Trace Vout 5V div Bottom Trace ON OFF input 5V div DS H48SA12025 05052008 Figure 9 Turn on transient at zero load current 4 ms div Top Trace Vout 5V div Bottom Trace ON OFF input 5V div amp Mains1M an Figure 11 Output voltage response to step change in load current 200mV div 1ms div 75 50 75 of lo max di dt 1A us Load cap 5000yF tantalum capacitor and 1uF ceramic capacitor Scope measurement should be made using a BNC cable length shorter than 20 inches Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module DS H48SA12025 05052008 lt lt Mainz iM gt gt Figure 10 Output voltage response to step change in load current 200mV div 200us div 7596 5096 7596 of lo max di dt 0 1A us Load cap 10uF tantalum capacitor and 1uF ceramic capacitor Scope measurement should be made using a BNC cable length shorter than 20 inches Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module is ic Vin O Vin Cs 220uF 100uF ESR 0 2 ohm 25 C 100KHz Figure 12 Test set up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Current Note Measured input reflected ripple current with a simulated source Inductance LTEST of 12 uH Capacitor Cs offset possible battery impedance Measured current as sho
18. wn below I Figure 13 Input Terminal Ripple Current i at nominal input voltage and rated load current with 12uH source impedance and 100yuF electrolytic capacitor 500 mA div 2us div Copper Strip RESISTIVE LOAD Figure 15 Output voltage noise and ripple measurement test setup Output Voltage V Output Current A Figure 17 Output voltage vs load current showing typical current limit curves and converter shutdown points DS H48SA12025 05052008 Figure 14 Input reflected ripple current i through a 12uH source inductor at nominal input voltage and rated load current 20 mA div 2us div ecclesesleesclessslessssencclesccli esee eee leseeseseslesesleseslenssl eaaet en ec lease lesse les esleesesennslenesl ccelis es lese ele eee loses leseslesssleneeiencsl cles ee deese lesse seseslcesnlecncl nace eae iee ea Meses lesse lesesleneeiacccl secl esee lese ales eal Figure 16 Output voltage ripple at nominal input voltage and rated load current 50mV div 2us div Load capacitance 1uF ceramic capacitor and 10uF tantalum capacitor Bandwidth 20 MHz Scope measurement should be made using a BNC cable length shorter than 20 inches Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module Da B DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the e DC DC power modules will interact with the modules and affect the
19. ximum Output Capacitance 100 Resistor load 5 overshoot of Vout at startup 10000 uF 100 Load Vin 48V 93 2 60 Load Vin 48V 92 5 Input to Output 2250 Vdc Isolation Resistance 10 MQ Isolation Capacitance 1500 pF Switching Frequency 300 kHz ON OFF Control Negative Remote On Off logic Logic Low Module On Von off 2 12 V Logic High Module Off Von off 3 18 V ON OFF Control Positive Remote On Off logic Logic Low Module Off Von off 2 1 2 V Logic High Module On Von off 3 18 V ON OFF Current for both remote on off logic lon off at Von off 0 0V 0 3 mA ON OFF Current for both remote on off logic lon off at Von off 3V 10 uA Leakage Current for both remote on off logic Logic High Von off 15V 100 uA Output Voltage Trim Range Pout lt max rated power 9 6 13 2 V Output Voltage Remote Sense Range Pout max rated power 10 Output Over Voltage Protection Over full input range Over full temp range 115 140 GENERAL SPECIFICATIONS MTBF lo 80 of lo max Ta 25 C airflow rate 300 LFM 15 M hours Weight Open frame 80 grams Over Temperature Shutdown Openframe Please refer to Fig 24 for the measuring point 127 C Over Temperature Shutdown Heatspreader Please refer to Fig 25 for the measuring point 116 C INN DS H48SA12025 05052008 SH 30 p di ue E OK N 20 EFFICIENCY 96 POWER DISSIPATION W o 5 10 15 20 25 0 5 10 15 20 25 OUTPUT
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