Delta Electronics E24SR User's Manual
Contents
1. 58 4 2 30 260 DEN 10 40 0 409 26 50 1 043 Fs d E oppe EAS i n amp LIS RO Oo E CS 4 m B in We 2 3 i og ET icu 1S 10i E jac ev e FS e F e taa _ N LJ 39 999 933934 EX 1 A i BOSSED CARRIER n SP A 1 d d 97 0 0 28 MIN AREA PICK AND PLACE LOCATION NV Emp 1 f gt Y _ NOTES NOTES E 77 ALL DIMENSIONS ARE IN MILLIMETERS AND INCHES i DIME TOLERANCES X Xmm 0 5mm X XX in 0 02 in Y M mm X XXmm z0 25mm X XXX in t0 010 in ail RECOMMENDED PAD LAYOUT SMD 58 4 2 30 50 80 2 000 22 8 0 90 22 ON OFF TRIM 60 A O SENSE 7O p 1 Vin Vout O Ni wer o5 2 60 0 102 M PAD 8X E RECOMENDED P W B PAD LAYOUT NOTES DIMENSIONS ARE IN MILLIMETERS AND INCHES TOLERANCES X2. 9 000 D CO c VALID NES NER N en RED ATE CODDECC M VV 2 0 SHOULDER N SWEET COPPER 9 A WT R f ACHI ND WITH 2 5 10 HOULDER Name Vin ON OFF Vin Vout SENSE TRIM SENSE Vout AlZ DS E24SR05012 01032008 NOTES DIMENSIONS i C OLERANCES ML NEN WL v JCTODC ANID MILLIMETERS AND ARE N F3 oy E NV NN X XXmmzO 2Z5mmi X XXX Function Negative input voltage Remote ON OFF Positive input voltage Positive output voltage Positive remote sense Output voltage trim Negative remote sense Negative output voltage _ f X XmmztO 5mm X XX in ATR Sl J f re LA M9 TATEA 0 13 PART Tels T Tw ON R E of KE m of m E EN Pin Option Cod Product Outputs Series Voltage Current Length Type pee nee E Eighth S Single R Regular 050 5 0V 12 12A N Negative R 0 170 F RoHS 6 6 A Standard ii Default Default Lead Free Functions P Positive N 0 145 K 0 110 M SMD MODEL LIST OUTPUT Default remote on off logic is negative and pin length is 0 170 For different remote on off logic and pin length please refer to part numbering system above or contact your local sales office CONTACT www delta com tw dcdc USA Europe Asia amp the rest of
3. 5 01 n B20 100KHz Figure 10 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 of 12 uH Capacitor Cs offset possible battery impedance Measure current as shown above DS E24SR05012 01032008 SES Mainz4 k 2 Figure 9 Output voltage response to step change in load current 75 50 75 of lo max 1A us Load 470 35 ESR solid electrolytic capacitor and 1uF ceramic capacitor Top Trace Vout 100mV div 200us div Bottom Trace lout SA div 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 1 lt lt Mainzdk gt gt Figure 11 Input Terminal Ripple Current ic at full rated output current and nominal input voltage with 12uH source impedance and electrolytic capacitor 200 mA div 2us div ELECTRICAL CHARACTERISTICS CURVES DES MHainzdk gt gt RESISTIV LOAD Figure 12 Input reflected ripple current is through a 12uH Figure 13 Output voltage noise and ripple measurement test source inductor at nominal input voltage and rated load current setup 20 mA div 2us div 6 0 4 0 Output Voltage V 2 0 0 0 gt O 8 10 12 14 16 Loadt Current A
4. Delphi Series E24SR 66W Eighth Brick Family DC DC Power Modules 24V in 5V 12A out The Delphi Series E24SR Eighth Brick 24V input single output isolated BIDC DC converters are the latest offering from a world leader in power systems technology and manufacturing Delta Electronics Inc This product family is available in either a through hole or surface mounted package and provides up to 66 watts of power or 20A of output current 3 3V and below in an industry standard footprint and pinout The 245 converter operates from an input voltage of 18V to 36V and is available in output voltages from 3 3V to 12V Efficiency for the 5V output is 90 5 at 12A full load 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 All models are fully protected from abnormal input output voltage current and temperature conditions The Delphi Series converters meet all safety requirements with basic insulation DATASHEET DS E24SR05012 01032008 FEATURES High efficiency 90 5 5V 12A Size 58 4mm x 22 8mm x 10 0mm 2 30 x 0 90 x 0 39 SMD and Through hole versions Industry standard pin out 2 1 input range Fixed frequency operation Input UVLO Output OTP OCP OVP Basic insulation 2250V isolation Monotonic startup into normal and pre biased loads
5. Figure 20 Wind tunnel test setup DS E24SR05012 01032008 Thermal Derating Heat can be removed by increasing airflow over the module To enhance system reliability the power module should always be operated below the maximum operating temperature the temperature exceeds the maximum module temperature reliability of the unit may be affected THERMAL CURVES E m l E O C n gap E 10 DO GS 4E fi m nom E 7D A 9 3mm 0 37 Figure 21 Hot spot temperature measured point The allowed maximum hot spot temperature is defined at 118 C E24SR05012 Standard Output Current vs Ambient Temperature and Air Velocity Output Current A Vin 24V Transverse Orientation Natural Convection 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature Figure 22 Output current vs ambient temperature and air velocity Vin 24V Transverse Orientation 10 PICK AND PLACE LOCATION SURFACE MOUNT TAPE amp REEL
6. D Q O ba E T e Ts SENSE L7 5 SENSE 17 G 1 d T D x T O 11 3 gt e 24 ON OFF TRIM 16 Y i Z4 ON OFF _ TRIM 46 i MZ Qm 4q E 7 iTA 00 FSENSE SENSE 7 a Cam N _ Vout 4 4 _ CN 34 Vin _ Vout_ e Y _ _ N i abe N i TAL eS eo amp 2 C 2 CO C CO bod ut u C5 2 C2 lt lt lt lt LO MIN O ud M E xi 2 E b i C cy E C C kA C3 Co CS 4 NW zi d NS QC yT PON VIF W lt 3OTTOM VIE S meds TED GERD se B U UI Iv V 5 pm xr CN 2 2 IV V LI 5 Eph xr EN UJ CO VA oO d 5 te LO gt Rese LO S 2 s s dn n SN CN olx pa X C3 2 Cox lt oh am Ww C S 3 VA gt i CUSIOMER BOARD i 5 y 1 Lf Ae A ZZJZ Z gt UJ 3 Cy POL y COUNT NES CN N LILI LI JOU J A i Y N NA JU S go g N USTOMER BOARD OI DER DIATED COPPER 1 00 0 040 DIA N bar ie SOLDER PLA D COPPER N a 20 Ai gt m D gt UN Jj sl x RAN Nan A G LJ z n OU D IN F D ER 6XN
7. Figure 14 Output voltage ripple at nominal input voltage and Figure 15 Output voltage vs load current showing typical rated load current lo 12A 20 mV div 2us div current limit curves and converter shutdown points Load capacitance 1uF ceramic capacitor and 10uF tantalum capacitor Bandwidth 20 MHz Scope measurements 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 E24SR05012 01032008 DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC DC power modules will interact with the modules and affect the stability A low ac impedance input source is recommended If the source inductance is more than a few we advise adding a 10 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 Application notes to assist designers in addressing these issues are pending release Safety Considerations The power module must be installed in compliance with the spacing and separation requirement
8. Xmm X0 5mm X XX 11 0 02 in X XXmmzt0 25mm X XXX in x0 010 in DS E24SR05012 01032008 E c LEADED Sn Pb PROCESS RECOMMEND TEMP PROFILE Peak temp 2nd Ramp up temp 102 0 210 230 5sec N Pre heat temp 140 180 C 60 120 sec Dy ertet e LRL lt Ramp up temp 150 05 3 0 C sec Cooling down rate lt 3 sec 100 Temperature Over 200 C 40 50sec 0 60 120 180 240 300 Time sec Note The temperature refers to the pin of E24SR measured on the pin Vout joint LEAD FREE SAC PROCESS RECOMMEND TEMP PROFILE Temp 1 Peak Temp 240 245 217 C Ramp down o max 4 C sec 200 fea cs 150 C Preheat time 4 gt i09 ee Time Limited 90 sec above 217 C Ramp up max 3 C sec 25 C Time gt Note The temperature refers to the pin of E24SR measured on the pin Vout joint DS E24SR05012 01032008 MECHANICAL DRAWING Surface mount module Through hole module ALS Bo ALS e 402 5 jj 206 4 2 5C l bp pb Q f f p SN E Tu d Tu 218 20 2 000 3 8 0 15 50 80 2 N 7 n es IV x ms E E P em 7 3 14 evum Vout 18 14 Vir Vout 48
9. Hz OUTPUT CHARACTERISTICS Output Voltage Current Transient 10yF Tan 8 1uF Ceramic load cap 0 1A us Output Voltage Set Point Vin 24V lo lo max Tc 25 C 4 925 5 075 Output Voltage Regulation Over Load lo lo min to lo max 3 10 mV Over Line 18 to36V 3 10 mV Over Temperature 40 to100 C 50 mV Total Output Voltage Range Over sample load line and temperature 4 875 5 5 125 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak to Peak Full Load 1uF ceramic 10uF tantalum 50 100 mV RMS Full Load 1uF ceramic 10uF tantalum 15 30 mV Operating Output Current Range 0 12 Output Over Current Protection Output Voltage 1096 Low 110 140 DYNAMIC CHARACTERISTICS 10096 Load 90 5 Positive Step Change in Output Current 5096 lo max to 7596 lo max 150 250 mV Negative Step Change in Output Current 75 lo max to 5096 lo max 150 250 mV Settling Time within 196 Vout nominal 150 us Turn On Transient Start Up Time From On Off Control 5 ms Start Up Time From Input 5 ms Back bias start up lt 90 of nominal output voltage Back drive current limit while pin on off is enabled lo 0A 0 1 A Back drive current limit while pin on off is disabled lo 0A 50 Maximum Output Capacitance Full load CR mode 5 overshoot of Vout at mee 5000 EFFICIENCY 6096 Load Input to Output 90 5 2250 ISOLATION CHARACTERISTICS Vdc Isol
10. Output voltage trim 10 No minimum load required 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 directive OPTIONS Positive On Off logic SMD pin Short pin lengths available APPLICATIONS Telecom DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial Test Equipment NELTA Delta Electronics Inc TECHNICAL SPECIFICATIONS T4225 C airflow rate 300 LFM V z24Vdc nominal Vout unless otherwise noted PARAMETER NOTES and CONDITIONS IS 2 Min Max Units Input Voltage Continuous 36 Vdc Transient 100ms 100ms 50 Vdc Operating Temperature Refer to figure 21 for measuring point 40 118 C Storage Temperature 55 125 C Input Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage Vdc Input Under Voltage Lockout Turn On Voltage Threshold 16 17 17 8 Vdc Turn Off Voltage Threshold 15 16 17 Vdc Lockout Hysteresis Voltage 0 7 1 1 5 Maximum Input Current 10096 Load 18Vin 3 9 A No Load Input Current 80 150 mA Off Converter Input Current 3 10 mA Inrush Current 20 0 1 A s Input Reflected Ripple Current P P thru 12uH inductor 5Hz to 20MHz 2 Input Voltage Ripple Rejection 120
11. Voltage V Figure 3 Typical full load input characteristics at room temperature DS E24SR05012 01032008 gt zc ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On Off Logic DES 1 gt gt Figure 4 Turn on transient at full rated load current resistive Figure 5 Turn on transient at zero load current 2 ms div load 2 ms div Vin 24V Top Trace Vout 2 0V div Bottom Vin 24V Top Trace Vout 2 0V div Bottom Trace ON OFF Trace ON OFF input 10V div input 10V div For Positive Remote On Off Logic Maire iM Maim iM gt gt Figure 6 Turn on transient at full rated load current resistive Figure 7 Turn on transient at zero load current 2 ms div load 2 ms div Vin 24V Top Trace Vout 2 0V div Bottom Vin 24V Top Trace Vout 2 0V div Bottom Trace ON OFF Trace ON OFF input 10V div input 10V div DS 248805012 01032008 Fd ELECTRICAL CHARACTERISTICS CURVES DES HMainsd k gt gt Figure 8 Output voltage response to step change in load current 75 50 75 of lo max di dt 0 1A us Load cap 10uF tantalum capacitor and 1uF ceramic capacitor Top Trace Vout 100mV div 200us div Bottom Trace lout 5 Scope measurement should be made using a cable length shorter than 20 inches Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module 33uF lt 0 3 Ma 100KHz Csz2uF
12. ation Resistance 10 Isolation Capacitance 1500 FEATURE CHARACTERISTICS Switching Frequency 350 kHz ON OFF Control Negative Remote On Off logic Logic Low Module On 0 7 0 5 V Logic High Module Off 3 18 V ON OFF Control Positive Remote On Off logic Logic Low Module Off 0 7 0 5 V Logic High Module On 3 18 V On off pin open circuit voltage 9 6 V On off pin pull down resistance 12 Kohm Output Voltage Trim Range Pout lt rated power 10 10 Output Voltage Remote Sense Range Pout lt max rated power gt Output Over Voltage Protection Over full temp range 5 75 GENERAL SPECIFICATIONS MTBF lo 80 of lo max Ta 25 C 300LFM airflow 3 86 M hours Weight 22 0 grams Over Temperature Shutdown Refer to figure 21 for measuring point 123 C DS E24SR05012 01032008 ELECTRICAL CHARACTERISTICS CURVES 92 90 88 86 Efficiency 96 Loss W 84 82 80 12 2 4 6 8 10 12 Output 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 nominal and maximum input voltage at 25 C 4 0 3 5 3 0 2 5 2 0 1 5 Input Current A 1 0 0 5 0 0 18 20 22 24 26 28 30 32 34 36 Input
13. his restart trial will continue until the overload condition is corrected Over Voltage Protection The modules include an internal output over voltage protection circuit which monitors the voltage on the output terminals If this voltage exceeds the over voltage set point the module will shut down Hiccup mode The modules will try to restart after shutdown If the fault condition still exists the module will shut down again This restart trial will continue until the fault condition is corrected 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 The module will try to restart after shutdown If the over temperature condition still exists during restart the module will shut down again This restart trial will continue until the temperature is within specification 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 a logic high and off during a logic low 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 For negative logic if the remote on off feature is not used please short the on off pin
14. module and mounting surface have not been evaluated 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 normal blow fuse with 15A 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 FEATURES DESCRIPTIONS Over Current Protection The modules include an internal output over current protection circuit which will endure current limiting for an unlimited duration during output overload If the output current exceeds the OCP set point the modules will automatically shut down and enter hiccup mode The modules will try to restart after shutdown If the overload condition still exists the module will shut down again T
15. rim 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 THERMAL CONSIDERATIONS Thermal management is an important part of the system design To ensure proper reliable operation sufficient cooling of the power module is needed over the entire temperature range of the module Convection cooling is usually the dominant mode of heat transfer Hence the choice of equipment to characterize the thermal performance of the power module is a wind tunnel Thermal Testing Setup 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 the power modules are mounted The following figure shows 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 FACING PWB PWB MODULE AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 50 8 2 0 12 7 0 5 Note Wind Tunnel Test Setup Figure Dimensions are in millimeters and Inches
16. s of the end user s 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 Basic insulation based on 75 Vdc input is provided between the input and output of the module for the purpose of applying insulation requirements when the input to this DC to DC converter is identified as TNV 2 or SELV additional evaluation is needed if the source is other than TNV 2 or SELV When the input source is SELV circuit 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 DS E24SR05012 01032008 input source must be insulated from the ac mains by reinforced or double insulation The input terminals of the module are not operator accessible the metal baseplate is grounded one Vi pin and one Vo pin shall also be grounded SELV reliability test is conducted on the system where the module is used in combination with the module to ensure that under a single fault hazardous voltage does not appear at the module s output When installed into a Class Il equipment without grounding spacing consideration should be given to the end use installation as the spacing between the
17. to Vi For positive logic if the remote on off feature is not used please leave the on off pin floating DS E24SR05012 01032008 Vo Sense 8 ON OFF Trim e Sense 8 Vo 9 Figure 16 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 ON OFF R Distribution resistance Figure 17 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 current Care should be taken to ensure that the maximum output power does not exceed the maximum rated power EE FEATURES DESCRIPTIONS CON O
18. utput Voltage Adjustment TRIM To increase or decrease the output voltage set point connect 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 Vo Sense R Load Trim Sense Vo Figure 18 Circuit configuration for trim down decrease output voltage If the external resistor is connected between the TRIM and SENSE pins the output voltage set point decreases Fig 18 The external resistor value required to obtain a percentage of output voltage change A is defined as Rtrim down A 02 When Trim down 10 5Vx0 9 0 45V Rtrim down E 02 40 9 DS 245 05012 01032008 Vo Sense Trim Load Sense Vo Figure 19 Circuit configuration for trim up increase output voltage If the external resistor is connected between the TRIM and SENSE the output voltage set point increases Fig 19 The external resistor value required to obtain a percentage output voltage change is defined as 5 11 Vo 100 A 511 Rtrim up icu 10 2 KQ Ex When Trim up 10 5Vx1 125 5V etd Rtrim up E 1 225 x10 10 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 t
19. world Telephone Phone 41 31 998 53 11 Telephone 886 3 4526107 ext 6220 East Coast 888 335 8201 886 3 4513485 West Coast 888 335 8208 do ieee 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 DS 248805012 01032008 14 at any time without notice DS E24SR05012 01032008
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