S36SA3R308NRFA DELTA | Alldatasheet
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Delphi Series S36SA, 25W Family DC/DC Power Modules: 18Vin to 60Vin, 3.3V/8A out The Delp hi Serie s S36SA, surface m ountable, si ngle outp ut, isolated DC/DC converter, i s the latest offeri ng from a world le ader in powe r systems tech nology a nd manufacturing – Delta Electroni cs, Inc. This product family provide s up to 25 watts of power o r up to 8 A of outpu t current in an industry standard footprint. With creative design technology and optimi zation of comp onent pla cement, the Delphi Seri es Small Power conv erters po ssess outstan ding ele ctrical and th ermal performance, as well as extremely hi gh reliability under hi ghly stressful operating condition s. All models are protecte d from abnorm al input/output voltage and current conditions. APPLICATIONS Telecom/DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial/Test Equipment Delta Electronics, Inc. DATASHEET DS_S36SA3R308_04062006 OPTIONS Positive On/Off logic
FEATURES
High efficiency: 88.5% @ 3.3V/8A Size: 47.20mmx29.5mmx8.15mm Wide input voltage range: 18V~60V Standard footprint Surface mountable Industry standard pin out Fixed frequency operation Input UVLO, OVLO, Output OCP, OVP, OTP No minimum load required ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility UL/cUL 60950 (US & Canada) recognized, and TUV (EN60950) certified CE mark meets 73/23/EEC and 93/68/EEC directive
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS S36SA3R308NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 65 Vdc Transient (100ms) 100ms 100 Vdc Operating Temperature Refer to Figure 13 for measuring point -40 100 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 1 minute 1500 Vdc INPUT CHARACTERISTICS Operating Input Voltage 18 60 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 16 17 18 Vdc Turn-Off Voltage Threshold 15 16 17 Vdc Lockout Hysteresis Voltage 0.7 1.5 2 Vdc Maximum Input Current 100% Load, 18Vin 2.1 A No-Load Input Current 45 100 mA Off Converter Input Current 4 10 mA Inrush Current(I2t) 0.003 1 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 15 mA Input Voltage Ripple Rejection 120 Hz 50 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25C 3.25 3.30 3.35 Vdc Output Voltage Regulation Over Load Io=Io,min to Io,max ±3 ±12 mV Over Line Vin=18V to60V ±3 ±10 mV Over Temperature Tp=-40°C to 100°C ±15 mV Total Output Voltage Range over sample load, line and temperature 3.16 3.44 mV Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 50 100 mV RMS Full Load, 1µF ceramic, 10µF tantalum 10 30 mV Operating Output Current Range 0 8 A Output DC Current-Limit Inception Output Voltage 10% Low 110 150 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 1A/µs Positive Step Change in Output Current 50% Io,max to 100% Io,max 80 200 mV Negative Step Change in Output Current 100 % Io,max to 50% Io,max 80 200 mV Settling Time (within 1% Vout nominal) 200 us Turn-On Transient Start-Up Time, From On/Off Control 6 15 ms Start-Up Time, From Input 7 15 ms Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 3000 µF EFFICIENCY 100% Load Vin=48V 86.5 88.5 % 100% Load Vin=24V 87.5 89.5 % ISOLATION CHARACTERISTICS Input to Output 1500 Vdc Isolation Resistance 100 MΩ Isolation Capacitance 1500 PF FEATURE CHARACTERISTICS Switching Frequency 350 kHz ON/OFF Control, (Logic Low-Module ON) Logic Low Von/off at Ion/off=1.0mA 0.7 V Logic High Von/off at Ion/off=0.0 µA 2 18 V ON/OFF Current Ion/off at Von/off=0.0V 1 mA Leakage Current Logic High, Von/off=15V 50 uA Output Voltage Trim Range Across Pins 9 & 5, Pout ≦ max rated power -10 10 % Output Voltage Remote Sense Range Pout ≦ max rated power 10 % Output Over-Voltage Protection Over full temp range; % of nominal Vout 115 122 135 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Tc=40°C 5.8 Mhour Weight 16.9 grams Over-Temperature Shutdown Refer to Figure 13 for measuring point 105 °C
S36SA3R308NR A Output Load vs. Ambient Temperature and Air Velocity (De-rating Curve, Either Orientation, no heatsink) 55 60 65 70 75 80 85 90 95 Ambient Temperature (℃) Output Current(A) Natural Convection 100LFM 200LFM 300LFM 400LFM 500LFM 600LFM 150LFM Figure 13: Hot spot location Figure 14: Output current vs. ambient temperature and air velocity (Either Orientation) Hot spot
This po wer module i s no t internally fused. To a chieve optimum saf ety and system prote ction, an input line fuse i s hi ghly recomme nded. T he safety age ncies require a no rmal-blow fuse with 5A maximum rating to be installed in the ungrounded lead. A lower rated fuse can b e used base d on th e maximum inru sh tra nsient energy and maximum input current. Soldering and Cleaning Considerations Post solder cleaning is usually the final board assembly process before the board or syst em undergo es electrical te sting. Inadeq uate cl eaning and/o r d rying may lowe r the reli ability of a powe r modul e a nd severely affect the finishe d circuit bo ard assembly t est. Adequate cleaning and/or drying is especially important for un -encapsulated an d/or o pen fra me type po wer modules. For assi stance on app ropriate sold ering a nd cleaning p rocedures, ple ase contact Delta’s techn ical support team. DESIGN CONSIDERATION Input Source Impedance The imp edance of the inp ut sou rce co nnecting to the DC/DC p ower modul es will intera ct with the modul es and affe ct the sta bility. A low ac-i mpedance i nput source is re commended. If the source indu ctance is more than a few µH, we advise adding a 10 to 100 µF electrolytic capa citor (ES R < 0.7 Ω 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 a pplications. For design assi stance with EMC com pliance and relat ed PWB lay out issue s, ple ase c ontact Delt a’s t echnical support team. An exte rnal in put filter modul e is available fo r ea sier EMC comp liance de sign. Application n otes to assi st desig ners in addre ssing these issues are pending release. Safety Considerations The power module must be installed in compliance with the spa cing and sepa ration req uirements of the end- user’s safety agency standard if the system in which the power module is to be used must mee t safety agency requirements. When the input source is 60Vdc or below, the powe r module m eets SELV (safety e xtra-low voltage) requirements. If the input source is a hazardous voltage which is greater than 6 0 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 in put source m ust be in sulated from an y hazardous voltage s, incl uding the a c mains, with reinforced insulation. One Vi pin a nd one Vo pi n are g rounded, or all the input and output pins are kept floating. The input terminals of the module are not operato r accessible. A SELV reliability test is conducted on the syste m where the m odule i s use d to ensu re that under a single fault, hazard ous voltage do es not appe ar a t the module’s output. Do not gro und one of the input pins without grou nding one of the output pins. This connection may allow a non- SELV voltage to appea r betwee n the output pin and ground. 8 7
Pin No. Name Function 1 +Vout Positive output voltage 2 -Vout Negative output voltage
3 NC No Connection
6 Trim Output voltage trim
7 NC No Connection
8 ON/OFF ON/OFF Logic
10 NC No Connection
11 -Vin Negative input voltage 12 +Vin Positive input voltage
18~60V S- Single A- Advanced 3R3- 3.3V 08- 8.0A N- Negative P- Positive R- SMD Space-RoHS 5/6 F- RoHS 6/6 (Lead Free) A- Standard MODEL LIST MODEL NAME INPUT OUTPUT EFF @ 100% LOAD S36SA3R308NRFA 18V~60V 2.1A 3.3V 8.0A 88.5% CONTACT: www.delta.com.tw/dcdc USA: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Europe: Phone: +41 31 998 53 11 Fax: +41 31 998 53 53 Email: DCDC@delta-es.com Asia & the rest of world: Telephone: +886 3 4526107 ext 6220 Fax: +886 3 4513485 Email: DCDC@delta.com.tw WARRANTY Delta offers a two (2 ) year limited wa rranty. Complete warranty information is listed on ou r web site o r is availabl e upon request from Delta. Information furnished by Delta is believed to be accurate a nd 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 pate nt rights of Delta. Delta reserves the right to rev ise these specifications at any time, without notice. 14 12