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| Astec Industry Standard 100Watts ALH25-Dual Ultra High Efficiency Total Power: Input Voltages: No. of Outputs: 100 Watts 48 V Dual 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 Voltage tolerance Line regulation Load regulation Ripple/noise Temperature coefficient Transient response Switching frequency +/-1% +/-0.2% +/-0.5% 200mV P-P +/-0.02%/C (max) 3% Vo max recovery <500msec (50% to 75% step load change) 250 kHz typical 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 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 UL 1950 CAN22.2-950 EN60950 1 North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662 AMERICAS 5810 Van Allen Way Carlsbad, CA 92008 Telephone: 760-930-4600 Facsimile: 760-930-0698 EUROPE Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX, UK Telephone: 44 (1384) 842-211 Facsimile: 44 (1384) 843-355 ASIA 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 36-75V Output 1 Voltage / Current 5.0V @ 20A Output 2 Voltage / Current 3.3V @ 25A Model Number 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 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 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: C1 = 100uF/100V, C2 =C4= metallic film, 47uF/50V C3=C5= Electrolytic 1000uF/10V, C6= .01uF/1500V 3. All specifications are typical at nominal line, full load, and 25C unless otherwise noted. 4. All specifications subject to change without notice. Mechanical drawings are for reference only 5. Please refer to the Technical Reference Notes for more information. 6. Warranty: 1yr 4- 1.5 (0.06) only +Vo and -Vo pins 61.0 (2.4) -Vin 10.2 (0.4) +Vo2 7.62 (0.3) -Vo2 7.62 (0.3) 25.4 (1.0) Trim2 10.16 (0.4) CNT +Vo1 7.62 (0.3) -Vo1 +Vin 7.62 (0.3) Trim1 5- 1.0 (0.04) except Vo pins 48.26 (1.9) 57.9 (2.28) 10.16 (0.4) 12.70 (0.5) 4.8 (0.19) Astec Industry 12.7 (0.5) 5.8(0.23)* www.astecpower.com Revision date: 20040929 Rev02 2 |
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