FA Series 250-300 Watt Single Output Full Brick DC/DC Converter Rev D FEATURES ● 100% Burn In ● Synchronizable ● Output Trim ±10% ● 1500VDC Isolation ● Operation to No Load ● Very Low Output Ripple ● Output Current up to 60A ● Fast Transient Response ● Fixed Switching Frequency ● 250-300 Watts Output Power ● Remote Sense Compensation ● Remote ON/OFF (Active High/Low) ● Short Circuit and Over Temperature Protection ● 90% Efficient at Half Load, 88% Efficient at Full Load ● Optional Chassis Mount Version Available (See CMFA Series) DESCRIPTION The FA series is a high-density full brick converter that incorporates the desired features required in today’s demanding low voltage bus applications. Its unique dual interleaved phase-shifted topology minimizes both input and output noise. When performance, reliability, and low cost are needed, the FA series delivers. SPECIFICATIONS: FA Series All specifications apply @ 25°C ambient unless otherwise noted INPUT SPECIFICATIONS PROTECTION SPECIFICATIONS Input Voltage Range .................................................................. 10-36VDC Current Limit ........................................................................................ 130% UVLO Turn On at .....................................................................10VDC max Short Circuit Protection........................................Continuous, self re-setting UVLO Turn off at .....................................................................9.5VDC max Over Temperature Protection ......................................110°C, self re-setting Input Filter ................................1,000μF low ESR capacitor recommended GENERAL SPECIFICATIONS Input Surge Voltage (100ms) ...........................................................50VDC Reflected Ripple Current (nominal Vin and full load) .........................20mA Remote ON/OFF ................................................. See Technical Datasheet Input Current under Remote Off ..........................................................1mA Maximum Input Current (Low Line)....................................................... 35A No Load Input Current ......................................................................... 0.1A OUTPUT SPECIFICATIONS Efficiency .................................................................................... 90% typical Switching Frequency .................................................................700KHz typ. Isolation Voltage (Input to Output)......................................... 1500VDC min. Isolation Resistance ...................................................................... 1GΩ min. Isolation Capacitance ........................................................................ 0.01μF ENVIRONMENTAL SPECIFICATIONS Operating Temperature (ambient) ........................... -40°C ~ +100°C (case) Output Voltage ..............................................................................see table Voltage Accuracy ................................................................................. ±1% Output Adjustability ............................................................................ ±10% Output Current ..............................................................................see table Output Power ................................................................................see table Line Regulation (LL to HL at FL)....................................................... ±0.2% Load Regulation (NL to FL)............................................................... ±0.2% Ripple/Noise (20 MHz BW) .................................................... 1% Vout max Temperature Coefficient ................................................. ±0.02% / °C max. Transient Response (50% load step).............................. 5% total deviation Storage Temperature .......................................................... -55°C ~ +125°C Humidity...................................................................fully potted construction Cooling ..........................................................heatsink optional (see Note 4) MTBF.................................................................................. 2,212,456 hours PHYSICAL SPECIFICATIONS Weight ................................................................................. 11.22oz (318g) Dimensions.............................................................. 4.6 x 2.4 x 0.50 inches Case Material ....................................................................... Aluminum alloy Shielding......................................................................................... six-sided Due to advances in technology, specifications subject to change without notice 06/29/2010 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 4 FA Series 250-300 Watt Single Output Full Brick DC/DC Converter Rev D MODEL SELECTION TABLE Model Number for Threaded Inserts Model Number for Thru-Hole Inserts Input Voltage Range Output Voltage Output Current Output Power FA12S43-250 FA12S43-250TH 43 VDC 5.814A 250W FA12S48-250 FA12S48-250TH 48 VDC 5.208A 250W FA12S5-300 FA12S5-300TH 5 VDC 60A 300W FA12S12-300 FA12S12-300TH FA12S15-300 FA12S15-300TH FA12S20-300 FA12S20-300TH 12 VDC 12 VDC 25A 300W (10 - 36 VDC) 15 VDC 20A 300W 20 VDC 15A 300W FA12S24-300 FA12S24-300TH 24 VDC 12.5A 300W FA12S26-300 FA12S26-300TH 26 VDC 11.538A 300W FA12S28-300 FA12S28-300TH 28 VDC 10.714A 300W NOTES 1. Pin to pin tolerance ± 0.01" [±0.3mm]. Pin diameter tolerance ±0.005" [±0.13mm]. 2. Case material: 0.040" [1.02mm] thick, aluminum alloy 3003-0, Per: QQA 250/2. 3. Unit comes with either 3M x 0.5 threaded thru inserts or for 0.125 thru-hole add "TH" suffix to the model part number. Ex: FA12S24-300TH. 4. For Heat sink add “HS” suffix to the model part number. Ex: FA12S24-300HS. 5. Active High Enable is standard; for Active Low Enable add “R” suffix to the model number. Ex: FA12S24-300R. 6. See CMFA Series for chassis mount version. DERATING CURVE FA12S24-300 MAX AMBIENT vs OUTPUT POWER Airflow across unit in linear feet per minute (LFM) 06/29/2010 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 4 FA Series 250-300 Watt Single Output Full Brick DC/DC Converter Rev D MECHANICAL DRAWING Unit: inches [mm] HEATSINK SUPPLIED ATTACHED WITH THERMAL INTERFACE MATERIAL. HEATSINK HAS Ø.120 ±.005 Ø3.05±0.13 THRU HOLE 6X .02 [0.4] 6X REF COVER TO STANDOFF .84±.04 [21.3±1.0] HEATSINK TO STANDOFFS ONLY SEE NOTE 5 .000 [0.00] .20 MIN [5.1 MIN] SEE NOTE-1&3 PIN LENGTH FROM STANDOFFS ONLY .015 [0.38] .02 [0.4] 6X REF COVER TO STANDOFF STANDARD +0.8 .50+.03 -.00 12.7 -0.0 .20 MIN [5.1 MIN] SEE NOTE-1&3 PIN LENGTH FROM STANDOFFS ONLY .30 [7.6] .000 [0.00] TO STANDOFFS ONLY +0.5 .30+.02 -.03 7.6 -0.6 SEE NOTE-4 3.600 [91.44] SERIAL NO: 1.800 [45.72] .50 [12.7] .35 [8.9] .000 [0.00] 1 6 .400 [10.16] 2 7 .700 [17.78] 3 1.000 [25.40] 4 8 1.400 [35.56] 5 9 DATE CODE 2.100 [53.34] MODEL NAME DC/DC CONVERTER R XXXX WALL INDUSTRIES EXETER, NH 03833 DOT DENOTES PIN-1 +0.5 2.40+.02 -.03 61.0 -0.8 LABEL 4.200 [106.68] NONMETALLIC INSULATOR 2X .20±.03 [5.1±0.8] +0.5 4.60 +.02 -.03 117.0 -0.8 PIN DESIGNATION 1 +OUT 2 +SENSE 3 TRIM 4 -SENSE 5 -OUT 6 +IN 7 SD 8 SYNC 9 -IN NOTES: TO ORDER: 1. PIN TO PIN TOLERANCE ± .01 [±0.3], PIN DIAMETER TOLERANCE: ±.005 [±0.13]. 2. CASE MATERIAL: .040 [1.02] THICK, ALUMINUM ALLOY 3003-0, PER: QQA 250/2. 3. UNLESS OTHERWISE SPECIFIED. 4. UNIT COMES WITH EITHER 3M x 0.5 THREADED THRU INSERTS OR FOR Ø.125 THRU-HOLE ADD: “TH” SUFFIX TO MODEL PART NUMBER. EXAMPLE: FA12S24-300TH 5. FOR HEAT SINK ADD: “HS” SUFFIX TO MODEL PART NUMBER. EXAMPLE: FA12S24-300HS. 6. OPTIONAL CHASSIS MOUNT VERSION AVAILABLE (SEE CMFA SERIES). 06/29/2010 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 PIN Ø Ø.081 [2.06] Ø.040 [1.02] Ø.040 [1.02] Ø.040 [1.02] Ø.081 [2.06] Ø.081 [2.06] Ø.040 [1.02] Ø.040 [1.02] Ø.081 [2.06] Page 3 of 4 FA Series 250-300 Watt Single Output Full Brick DC/DC Converter Rev D OPTIONAL CHASSIS MOUNT VERSION (SEE CMFA SERIES) Unit: inches [mm] 8.00 [203.2] 7.000 [177.80] 3.500 [88.90] .50 [12.7] +INPUT +OUTPUT +S SD 3.40 [86.4] 2.875 [73.03] TRIM SYNC -S -INPUT -OUTPUT .000 [0.00] .26 [6.7] DATE CODE LABEL SERIAL NO: UNIT THRU HOLE Ø.125 [3.2] 6X REF PCB THRU HOLE Ø.140 [3.6] 6X REF Ø.143 [3.6] MOUNTING HOLES 6X GROUNDED 6-PLACES TERMINAL SCREW .136 (NO:6)-32UNC 9X 06/29/2010 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 .91 [23.0] .24 [6.0] REF Ø.28 [7.1] 6X .000 [0.00] .13 [3.2] 6X REF .000 [0.00] Page 4 of 4