S24SA1R212NRFA DELTA | Alldatasheet
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DS_S24SA1R212_05102006 Delta Electronics, Inc. Delphi Series S24SA, 2”x1” Family DC/DC Power Modules: 18~36Vin, 1.2V, 12A out The Del phi S eries S24SA, surfa ce mountable, 24V input, singl e output, isolated DC/DC converter is the latest offering fro m a world leader in power system and technology and manufacturing -- Delta Electronics, Inc. This p roduct family provides u p to 36 watts of po wer or up to 12 A o f output cu rrent (for output voltage 1.8V or belo w) in a low profile 2”x1 ” industry sta ndard form fa ctor and pinout. The S2 4SA ope rates from a wide input range of 18V to 36V, output ranges from 1.2V to 12V. For 1.2V at 12A full load, the effi ciency is up to 85.5%. With creative desi gn technology a nd optimization of co mponent placem ent, these co nverters possess out standing ele ctrical and t hermal perf ormance, a s well a s extremely hig h reli ability u nder hig hly stressful o perating conditio ns. All models are prote cted fro m abno rmal input/output voltage and cu rrent conditions, and feature 2250V input/output isolation and basic insulation.
APPLICATIONS
Telecom/DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial/Test Equipment OPTIONS Positive on/off logic SMD or Through hole mounting
FEATURES
High efficiency: 85.5% @ 1.2V/ 12A Size: 47.2mm x 29.5mm x 8.5mm Low profile: 0.33" Industry standard footprint and pin out Surface mountable Fixed frequency operation Input UVLO, Output OCP, OVP, OTP No minimum load required 2:1 input voltage range Basic insulation 2250 isolation ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility UL/cUL 60950 (US & Canada) recognized, and TUV (EN60950) certified
DS_S24SA1R212_05102006 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=200 LFM, Vin=24Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS S24SA1R212NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous -0.3 50 Vdc Operating Temperature Please refer to Fig. 18 For measuring point -40 110 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 18 24 36 V Input Under-Voltage Lockout Turn-On Voltage Threshold 17 18 V Turn-Off Voltage Threshold 13 15 V Lockout Hysteresis Voltage 1 2 3 V Maximum Input Current 100% Load, 18Vin 2.2 A No-Load Input Current 40 mA Off Converter Input Current 7 mA Inrush Current(I2t) 0.01 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 5 mA Input Voltage Ripple Rejection 120 Hz 50 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=24V, Io=50%Io.max, Ta=25℃ 1.17 1.20 1.23 V Output Voltage Regulation Over Load Io=Io,min to Io,max ±2 ±10 mV Over Line Vin=18V to36V ±2 ±5 mV Over Temperature Ta=-40℃ to 85℃ 100 300 ppm/℃ Total Output Voltage Range Over sample load, line and temperature 1.15 1.25 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 20 50 mV RMS Full Load, 1µF ceramic, 10µF tantalum 5 15 mV Operating Output Current Range 0 12 A Output DC Current-Limit Inception Output Voltage 10% Low 13.2 18 A DYNAMIC CHARACTERISTICS Output Voltage Current Transient 24V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Positive Step Change in Output Current 50% Io,max to 75% Io,max 30 75 mV Negative Step Change in Output Current 75% Io,max to 50% Io.max 30 75 mV Settling Time to 1% of Final value 200 µs Turn-On Transient Start-Up Time, From On/Off Control 12 ms Start-Up Time, From Input 12 ms Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 2200 µF EFFICIENCY 100% Load 85.5 % ISOLATION CHARACTERISTICS Isolation Voltage 2250 V Isolation Resistance 10 MΩ Isolation Capacitance 1500 pF FEATURE CHARACTERISTICS Switching Frequency 330 kHz ON/OFF Control, (Logic Low-Module ON) Logic Low Von/off at Ion/off=1.0mA 0 0.8 V Logic High Von/off at Ion/off=0.0 µA 15 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 Trim Pin & +Vo or –Vo, Pout≦max rated -10 +10 % Output Over-Voltage Protection(Hiccup) Over full temp range; % of nominal Vout 115 160 % GENERAL SPECIFICATIONS Calculated MTBF Io=80% of Io, max; Ta=25°C, Airflow=200LFM 6.2 Mhours Weight 18 grams Over-Temperature Shutdown Please refer to Fig.18 For measuring point 115 °C
DS_S24SA1R212_05102006 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 CONSIDERATIONS 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 operator 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.
DS_S24SA1R212_05102006 PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD)
DS_S24SA1R212_05102006 Temp. Time 150℃ 200℃ 100~140 sec. Time Limited 90 sec. above 217℃ 217℃ Preheat time Ramp up max. 3℃/sec. Ramp down max. 4℃/sec. Peak Temp. 240 ~ 245 ℃ 25℃ Note: The temperature refers to the pin of S24SA, measured on the pin +Vout joint. LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Time ( sec. ) Pre-heat temp. 140~180°C 60~120 sec. Peak temp. 210~230°C 5sec. Ramp-up temp. 0.5~3.0°C /sec. Temperature (°C ) 100 150 200 250 300 60 0 1 20 180 240 2nd Ramp-up temp. 1.0~3.0°C /sec. Over 200°C 40~50sec. Cooling down rate <3°C /sec. Note: The temperature refers to the pin of S24SA, measured on the pin +Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE
DS_S24SA1R212_05102006 MECHANICAL DRAWING Surface-Mount Module Through-Hole Module 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 -Sense (Option) Negative sense pin
DS_S24SA1R212_05102006 PART NUMBERING SYSTEM S 24 S A 1R2 12 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Type Option Code S- Small Power 24V S- Single A- Advanced 1R2-1.2V 1R5-1.5V 1R8-1.8V 2R5-2.5V 3R3- 3.3V 050- 5.0V 120- 12.0V 03- 3.0A 06- 6.6A 10- 10A 12- 12A N- Negative P- Positive R- SMD T- Through hole F- RoHS 6/6 (Lead Free) A－6 pins, no sense B－8 pins, with sense MODEL LIST MODEL NAME INPUT OUTPUT EFF @ 100% LOAD S24SA1R212NRFA 18V~36V 2.2A 1.2V 12A 85.5% S24SA1R512NRFA 18V~36V 2.2A 1.5V 12A 87.0% S24SA1R812NRFA 18V~36V 2.2A 1.8V 12A 87.5% S24SA2R510NRFA 18V~36V 3.2A 2.5V 10A 88.5% S24SA3R310NRFA 18V~36V 3.2A 3.3V 10A 90.0% S24SA05006NRFA 18V~36V 3.2A 5.0V 6.6A 90.0% S24SA12003NRFA 18V~36V 3.2A 12V 3.0A 89.5% 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 i s 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, no r for any infrin gements of patent s or othe r rights of third partie s, which may re sult from its use . No licen se is granted by i mplication or otherwise u nder any patent or p atent rights of Delta. De lta re serves the rig ht to rev ise these specifications at any time, without notice.