Delta Electronics 33W Family User's Manual
Contents
1. THERMAL CURVES 4 Omm 0 16 2 i 9 8 OE gg sap E 380 i be SPEC oc 3 MENS BE BH Je k l Drt g Elt E H E mH 4 SBA L 506g ge i 2 4 5 6 B Figure 18 Hot spot temperature measured point x The allowed maximum hot spot temperature is defined at 110 S48SA1R812 Standard Output Current vs Ambient Temperature and Air Velocity Output Current A Vin 60V 600LFM 500LFM Natural 8 L Convecti2. Su LEADED Sn Pb PROCESS RECOMMEND TEMP PROFILE Peak temp 2nd Ramp up temp o 210 230 C 5sec L 250 vA C sec Pre heat temp T aa 140 180 C 60 120sec gb x Ramp up temp g 5 150 _0 5 3 0 C sec e 2 100 E z Over 200 C d 50 40 50sec 0 60 120 180 240 300 Time sec Note The temperature refers to the pin of S48SA measured on the pin Vout joint LEAD FREE SAC PROCESS RECOMMEND TEMP PROFILE Temp TT Peak Temp 240 245 C 217 C pf Ramp down o max 4 C sec 200 tee oo soe 150 C L Preheat time 4 100 140 30 Time Limited 90 sec above 217 C Ramp up max 3 C sec 25 C Time 2 Note The temperature refers to the pin of S48SA measured on the pin Vout joint d d DS S48SA1R812 06012006 MECHANICAL DRAWING SMD 40 00 1 575 Mes Om a Through Hole 40 00 1 575 5 00 0 191 3 6 0 14
3. po au D n BU zs T B t o SY SS gt _ Y E a em pz E i l SAREN 2 B o T e Eee Ee mcus SEE v IY Oi FO CLL ROLLE ISQULL Mou S o olx m s dE O LO 280 gt a A E oo0000 0000 U Y x p EB BH E a L vad P PIN 1 TOP COVER TAPE EMBOSSED CARRIER MM vd mu in o iei UL TL TU IU 9330 0 13 007 913 0 0 51 PIN 1 26 0 0 24 MIN AREA DU PICK AND PLACE LOCATION P 0 I F A E 55 dad EN 8 CONFORMS TO EAI 481 SATNDARD ALI IMENSIONS ARE IN MILLIMETERS AND INCHES Q7 l Q T CIN e a REEL LL DI E ILLI O ANCES X Xmm z0 5mm X XX In 0 02 in TOLERANCES X Xmm 0 5mm X XX in t0 02 in X XxXrmm c0 25mm X XXX in 0 O1 Q in L X XXmmE0 25mmMm X XXX in 0 010 in RECOMMENDED PAD LAYOUT SMD 47 2 1 86 i 2 1 OO ao D 19 11 9 8 wo tO lt J HMVin Vin N C ON OFF He OPTION Py LE we Se p OJ eJ n OPTION OPTION D Vout Vout SENSE SENSE TRIM PIE D 2 4 5 6 rt OO OOO 6 0 14 62 80 0 110 5 00 0 1917 PAD 9X 3X 30 00 1 1817 a VCOMENDED P W B PAD LAYOU NOTES IMENSIONS ARE IN MILLIMETERS AND INCHES TOLERANCES X Xmm 0 5mm X XX in x0 02 in X XXmmzi0 25mm X XXX in x 0 010 in DS S48SA1R812 06012006
4. Delphi Series S48SA 33W Family m DC DC Power Modules 48V in 1 8V 12A out lg The Delphi Series S48SA surface mountable 48V input single output isolated DC DC converter is the latest offering from a world leader in power system and technology and manufacturing Delta Electronics Inc This product family provides up to 33 watts of power or up to 12A of output current for output voltage 1 8V or below 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 protected from abnormal input output voltage and current conditions DATASHEET DS S48SA1R812 06012006 FEATURES High efficiency 88 5 1 8V 12A Size 47 2mm x 29 5mm x 8 35mm 186 x 1167x 0 337 Low profile 0 33 Industry standard footprint and pin out Surface mountable Fixed frequency operation Input UVLO Output OCP OVP No minimum load required 2 1 input voltage range Basic insulation ISO 9001 TL 9000 ISO 14001 QS9000 OHSAS18001 certified manufacturing facility UL cUL 60950 US amp Canada recognized and TUV EN60950 certified CE mark meets 73 23 EEC and 93 68 EEC directive OPTIONS Positive on off logic Through hole version APPLICATIONS Telecom DataCom Wireless Networks Optical Network Equipment Server and Data St
5. Positive T Through Lead Free B 6 pin no sense 1R8 1 8V C 9 pins with sense 2R5 2 5V 12V has option B 3R3 3 3V only 050 5 0V 120 12V Option code A includes 9 pins Pins 4 5 and 9 have no connection Option code B excludes pin 4 5 and 9 total 6 pins Option code C features 9 pins with sense function MODEL LIST MODEL NAME INPUT OUTPUT EFF 100 LOAD S48SA1R512NRFA 36V 75V 0 85A 1 5V 12A 88 0 S48SA05006NRFA 36V 75V 1 3A 90 596 S48SA12003NRFB 36V 75V 1 3A 90 0 CONTACT www delta com tw dcdc USA Europe Asia amp the rest of world Telephone Phone 41 31 998 53 11 Telephone 886 3 4526107 ext 6220 East Coast 888 335 8201 l Fax 886 3 4513485 West Coast 888 335 8208 A za dus Email DCDCGdelta 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 S48SA1R812 06012006 E
6. 161 DG T1 n l T E a Figured Turn on transient at zero load current 1 ms div Top Trace Vout 500mV div Bottom Trace ON OFF Control 5 V div AYG2MS s 500us div 500us div Stopped y CH3 S0mY CHiel mV Figure 7 Output voltage response to step change in load current 7596 5096 of lo max di dt 0 1A us Load cap 10uF 100 mQESR tantalum capacitor and 1uF ceramic capacitor Top Trace Vout 50mV div Bottom Trace lout 5A div DS S48SA1R812 06012006 RVGZMS s 500us div Stopped y 500us div CHSE5 mV CHAE10mV act DCTI Figure 6 Output voltage response to step change in load current 5096 7596 of lo max di dt 0 1A us Load cap 10uF 100 m QESR tantalum capacitor and 1uF ceramic capacitor Top Trace Vout 50mV div Bottom Trace lout 5A div Cs 220uF ESR D 1 o 820 7 100KHz 33uF ESR 5 9 B20 100KHz Figure 8 Test set up diagram showing measurement points for Input Reflected Ripple Current Figure 9 Note Measured input reflected ripple current with a simulated source Inductance Ltest of 12 uH Capacitor Cs offset possible battery impedance NM Y E 2 ELECTRICAL CHARACTERISTICS CURVES NORM 100KMS5 5 2us div Stopped H 2us div CHETOmy d HC T1 RESISTIVE LOAD Figure 10 Output voltage noise and ripple measurement test E 5j Refl Rippl full Iure re E E a TUI THU Oop setup Scope mea
7. aay l TYP E O NET 1 9 e 2 A of t 9 4 5 86 ey ST al 1 2 A 5 B iol mj Lut Vout SENSE SENSE TRIM ol ae es SENSE SENSE TRIM oe P OPTION OPTION um b OPTION OPTION GS DEP LO LO OPTION LO OPTION a gt Vin Vin N C ON OFF of T Vin Vin N C ON OFF S M 12 CONI 12 11 9 8 O 9 e 2 55 0 093 DIA i 35 00 1 378 SOLDER PLATED 55 00 1 578 CQ SER 47 2 1 86 6X p i2 m l SOTTOM VIEW 3OTTOM VIEW E l a EN o EC SE Sl E S S oie E SS oj X LO LO Todes i N SE EN e C3 LO CT LO TTT FT I ZAPAYZZZZZ STRIS i i d l SIM ele 1 00 0 040 DIA CUSTOMER BOARD SULDER PLAIED COPPE 6X WITH 2 4 0 09 SHOULDER SIDE VIEW SIDE VIEW ES DIMENSIONS ARE IN MILLIMETERS AND INCHES IOLERANCES X Xmm 0 5mm X XX in 0 02 in X XXmm 0 25mm X XXX in 0 010 in Pin No Name Function 1 Vout Positive output voltage 2 Vout Negative output voltage 6 Trim Output voltage trim 8 ON OFF ON OFF logic 11 Vin Negative input voltage 12 Vin Positive input voltage Optional Pin Name Function 4 Sense Option Positive sense pin 5 Sense Option Negative sense pin 9 NC No connection ee pe 12 DS_S48SA1R812_06012006 i PART NUMBERING SYSTEM S 48 S A RB 122 N F Voltage Outputs Series Voltage Current Logic YD Code S Small 48V S Single A Advanced 1R2 1 2V N Negative R SMD F RoHS 6 6 A 9 pin no sense Power 1R5 1 5V P
8. logic if the remote on off feature is not used please leave the on off pin to floating DS S48SA1R812 06012006 Figure 13 Remote on off implementation Remote Sense Optional 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 Contact Contact and Distriloutior Resistance Losses Figure 14 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 Da cM 23 8 100 AVo 1089 Output Voltage Adjustment TRIM Rtrim up __
9. ___ ko AVo EE o increase or decrease the output voltage set point the modules may be connected with an external resistor Ex When trim up 10 1 8V X 1 1 1 98V between the TRIM pin and either the Vo or Vo The TRIM pin should be left open if this feature is not used 23 8100 10 1089 Rtrim up GS DUM MUN 104 48 9 K 10 Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power Figure 15 Circuit configuration for trim down decrease output voltage If the external resistor is connected between the TRIM and Vo pins the output voltage set point decreases he external resistor value required to obtain a percentage of output voltage change Vo is defined as 1089 Vo Rtrim down 104 KQ Ex When trim down 10 1 8V X 0 9 1 62V Rtrim down m 104 4 9 KO Figure 16 Circuit configuration for trim up increase output voltage If the external resistor is connected between the TRIM and Vo the output voltage set point increases The external resistor value required to obtain a percentage output voltage change Vo is defined as DS_S48SA1R812_06012006 5 NN MS 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 mo
10. dule 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 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 or a heat sink is 6 35mm 0 25 Thermal Derating Heat can be removed by increasing airflow over the module Figure 18 and 19 show maximum output is a function of ambient temperature and airflow rate To enhance system reliability the power module should always be operated below the maximum operating temperature If the temperature exceeds the maximum module temperature reliability of the unit may be affected FACING PWB i PWB MODULE AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 50 8 2 07 _ AIR FLOW mb too Note Wind Tunnel Test Setup Figure Dimensions are in millimeters and Inches Figure 17 Wind tunnel test setup DS_S48SA1R812_06012006
11. easuring point 115 ut 2 DS S48SA1R812 06012006 NM V ELECTRICAL CHARACTERISTICS CURVES 95 4 0 m gt gt amp 90 amp 3 5 s 2 g 6 x 3 0 S 80 125 75 2 0 e 1 5 65 60 0 5 55 1 2 3 4 5 6 7 8 9 10 11 12 0 0 OUTPUT CURRENT A 1 2 3 4 5 6 7 8 9 10 11 12 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 nominal and maximum input voltage at 25 C G NORM TMS s Ims div 0 8 Stopped i 1ms div CHIV CH3ES UmV v 07 cuEEENMEE o SEE Maa WHERE A E EPIELIUNPEELELK RERLPPRUPRENPeRe bRerR der ee UHR WM eigo dia Gabe gta Or PR eae dee Nx RR Fe hu bug ea Boden chu 2 0 6 rr H CELUM V ills M rU MM TIE ERN 0 5 s NM qM VEM SEM NM IM NEM NNNM 0 4 0 3 ar T be oe ea pee edendis e endende e edendis et edendis US a a ee US v2 c xcu 0 1 0 0 30 35 40 45 50 55 60 65 70 75 INPUT VOLTAGE V Figure 3 Typical input characteristics at room temperature Figure 4 Turn on transient at full rated load current 1 ms div Top Trace Vout 500mV div Bottom Trace ON OFF Control 5V div DS_S48SA1R812_06012006 Su ELECTRICAL CHARACTERISTICS CURVES NORM 1MS s 1ms div Stopped q ims div CHIESY CHBE500m DC
12. may allow a non SELV voltage to appear between the output pin and ground DS S48SA1R812 06012006 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 3A 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 SY X A 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 hiccup mode The modules will try to restart after shutdown If the overload condition still exists the module will shut down again This restart trial will co
13. ntinue 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 to Vi For positive
14. on 100LFM 4 L 200LFM 2 L 300LFM 95 100 Ambient Temperature C Figure 19 Output current vs ambient temperature and air velocity Vin lt 60V PICK AND PLACE LOCATION SURFACE MOUNT TAPE amp REEL 232 47 2 1 66 TOP COVER TAPE 96 00 1 417 ae 4 00 0 157 EMBOSSED CARRIER 9 40 0 370 a9 SL d Qo uszsbsrTusriiertissvuTcwwes K LO o jase lacie araa H im i UR e B Loeb S mr P MEI sols 10 zi w era ss RG Pe ol Ent Wm 2 FEED EAE E a hE Bab 0 FE k Fas EU ME DIRECTION 2
15. orage Industrial Test Equipment A NELTA Delta Electronics Inc am TECHNICAL SPECIFICATIONS Ta 25 C airflow rate 300 LFM Vi 48Vdc nominal Vout unless otherwise noted PARAMETER NOTES and CONDITIONS S48SA1R812NRFA Min Typ Max Units ARSO RP A Input Voltage Continuous 80 Vdc Transient 100ms 100ms 100 Vdc Operating Temperature Refer to Figure 18 for measuring point 40 100 C Storage Temperature 55 125 C Input Output Isolation Voltage 1 minute 1500 Vdc INPUT CHARACTERISTICS oo Operating Input Voltage 36 48 75 V Input Under Voltage Lockout Turn On Voltage Threshold 32 5 34 35 5 V Turn Off Voltage Threshold 30 5 32 33 5 V Lockout Hysteresis Voltage 1 2 3 V Maximum Input Current 100 Load 36Vin 0 85 A No Load Input Current 30 mA Off Converter Input Current 7 mA Inrush Current I t 0 01 A s Input Reflected Ripple Current P P thru 12uH inductor 5Hz to 20MHz 5 mA Input Voltage Ripple Rejection 120 Hz 50 dB OUTPUT CHARACTERISTICS ee Output Voltage Set Point Vin 48V lo 50 lo max Ta 25 C TT 1 80 1 83 V Output Voltage Regulation Over Load lo lo min to lo max 12 10 mV Over Line Vin 36V to75V 2 5 mV Over Temperature Ta 40C to 85C 100 300 ppm C Total Output Voltage Range Over sample load line and temperature 1 73 1 87 V Ou
16. re 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 requirements of the end user s safety agency standard if the system in which the power module is to be used must meet safety agency requirements When the input source is 60Vdc 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 c The input source must be insulated from any hazardous voltages including the ac mains with reinforced insulation 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 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
17. surement should be made using a BNC current and nominal input voltage with 12uH source impedance i Be cable length shorter than 20 inches Position the load oiai aaia aian aana 2 MAAN between 51 mm to 76 mm 2 inches to 3 inches from the module NORM 100M5 79 2us div Stopped 1 2us div S 2 1 CH3E20MY Lu O S Wind UR ons ee ee eee uud vine enn O 18 5 a E eR sang ue ser tease ades dedu cath oneal ccelo EREE AAT aTh vem tute it mage Ghat 5 Oo 1 5 0 9 0 6 uu uu EE E DN E M Ren L 0 0 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 LOAD CURRENT A Figure 11 Output voltage ripple at nominal input voltage and Figure 12 Output voltage vs load current showing typical rated load current 20 mV div Load capacitance 1uF ceramic current limit curves and converter shutdown points capacitor and 10uF tantalum capacitor Bandwidth 20 MHz DS S48SA1R812 06012006 Da 7 DESIGN CONSIDERATION gy I put Source Impedance The impedance of the input source connecting to the i 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 uH we advise adding a 10 to 100 uF electrolytic capacitor ESR lt 0 7 Q 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 a
18. tput Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak to Peak Full Load 1uF ceramic 10uF tantalum 30 75 mV RMS Full Load 1uF ceramic 10uF tantalum 5 20 mV Operating Output Current Range 0 12 A Output DC Current Limit Inception Output Voltage 1096 Low 132 15 6 18 A DYNAMIC CHARACTERISTICS ee Output Voltage Current Transient 48V 10pF Tan amp 1uF Ceramic load cap 0 1A us Positive Step Change in Output Current 5096 lo max to 7596 lo max 35 100 mV Negative Step Change in Output Current 75 lo max to 5096 lo max 35 100 mV Settling Time to 1 of Final value 200 US Turn On Transient Start Up Time From On Off Control 6 12 ms Start Up Time From Input 6 12 ms Maximum Output Capacitance Full load 596 overshoot of Vout at startup 2200 uF 100 Load 86 88 ISOLATION CHARACTERISTICS o Isolation Voltage 1500 V Isolation Resistance 10 MO Isolation Capacitance 1500 pF Switching Frequency 330 kHz ON OFF Control Logic Low Module ON Logic Low Von off at lon off 1 0mA 0 0 8 V Logic High Von off at lon off 0 0 uA 15 V ON OFF Current lon off at Von off 0 0V 1 mA Leakage Current Logic High Von off 15V 50 uA Output Voltage Trim Range Across Trim Pin amp Vo or Vo Pout lt max rated 10 10 Output Over Voltage Protection Hiccup Over full temp range of nominal Vout 115 125 140 GENERAL SPECIFICATIONS MNNNNNNgstdede m 2 NNNM MTBF lo 80 of lo max Tc 40 C 6 29 M hours Weight 18 grams Over Temperature Shutdown Refer to Figure 18 for m
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