Astec Industry Standard 100Watts ALH25-Dual Total Power: Input Voltages: No. of Outputs: 100 Watts 48 V Dual Ultra High Efficiency Electrical Specs Input Input range Efficiency Input reverse Voltage protection Input Surge voltage 36-75 VDC (48Vdc Nom.) 88% typical Fuse recommended 3A.MB 100V for 100ms Output Special Features * * * * * * * * * 100W Output loadsharing 48VDC input Open frame 2.3"x2.4"x0.50"pkg. -40C to +120Cboard temperature Trim feature, both rails Industry standard pin-out Enable (on/off) (pos or neg logic) OC, OV, OT protection 5.0V/3.3V dual outputs Voltage tolerance +/-1% Line regulation +/-0.2% Load regulation +/-0.5% Ripple/noise 200mV P-P Temperature coefficient +/-0.02%/C (max) Transient response 3% Vo max recovery <500msec (50% to 75% step load change) Switching frequency 250 kHz typical Control Enable Input current (enable off) Output trim on = 1.2Vdc Max (Neg Enable) off = 3Vdc Min (Neg Enable) Ref. to -Vin. TTL compatible <2ma. Both outputs +/-10% minimum Isolation I/O isolation 1500Vdc Environmental Operating PCB temperature range: -40C to +120C Storage temperature: -55C to +125C Weight: 80 grams Safety UL TUV 1 UL 1950 CAN22.2-950 EN60950 North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662 AMERICAS EUROPE ASIA 5810 Van Allen Way Carlsbad, CA 92008 Telephone: 760-930-4600 Facsimile: 760-930-0698 Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX, UK Telephone: 44 (1384) 842-211 Facsimile: 44 (1384) 843-355 Units 2111-2116, Level 21 Tower1, Metroplaza 223, Hing Fong Road Fwai Fong, New Territories Hong Kong Telephone: 852-2437-9662 Facsimile: 852-2402-4426 ALH25AF48N Ordering Information Input Voltage Output 1 Voltage / Current Output 2 Voltage / Current Model Number 36-75V 5.0V @ 20A 3.3V @ 25A ALH25AF48N Note: Enable function "N" = negative logic enable (without "N" = positive enable) 1. Maximum output power not to exceed 100W total for 5/3.3V version 20/25A). 2. Any output loading ratio within the maximum specified limits is possible. Pin Assignments Dual Outputs 4- 1.5 (0.06) only +Vo and -Vo pins 1. -Vin 2. Not present on this converter 3. Control (on/off) 4. +Vin 5. +Vo2 6. -Vo2 7. TRM2 8. +Vo1 9. -Vo1 10. TRM1 10.2 (0.4) 61.0 (2.4) +Vo2 -Vin 7.62 (0.3) -Vo2 7.62 (0.3) Trim2 25.4 (1.0) 10.16 (0.4) +Vo1 CNT Notes: 1. 20 MHz bandwidth. An external 2.20mF ceramic capacitor is recommended to be placed from +Vout to -Vout. 2. Recommended external components below: C3=C5= Electrolytic 1000uF/10V, C6= .01uF/1500V 3. All specifications are typical at nominal line, full load, and 25C unless otherwise noted. -Vo1 7.62 (0.3) +Vin 12.70 (0.5) C1 = 100uF/100V, C2 =C4= metallic film, 47uF/50V 7.62 (0.3) 10.16 (0.4) 4.8 (0.19) 5- 1.0 (0.04) except Vo pins 48.26 (1.9) 57.9 (2.28) 5. Please refer to the Technical Reference Notes for more information. 6. Warranty: 1yr 12.7 (0.5) 5.8(0.23)* www.astecpower.com Revision date: 20040929 Rev02 Astec Industry 4. All specifications subject to change without notice. Mechanical drawings are for reference only Trim1 2