ALH25AF48

ALH25AF48 Datasheet

ALH25-Dual

Part	Datasheet
ALH25AF48	ALH25AF48 (pdf)

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Astec Industry Standard 100 Watts ALH25-Dual Total Power Input Voltages No. of Outputs: 100 Watts 48V Dual Special Features • 100W Output loadsharing • 48VDC Input • Open Frame x pkg. • -40 to 120°C board 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 Environmental Operating PCB temperature range -40°C to +120°C Storage temperature -55°C to +125°C Weight 80 grams Electrical Specs Input 36 to 75 VDC 48Vdc Nom. 88% typical Fuse recommended 3A.MB 100V for 100mS Output Voltage tolerance ± 1% Line regulation Load regulation Ripple/noise Temperature coefficient Transient response Switching frequency 200mV P-P +0.02%/°C max 3% Vo max recovery <500msec 50% to 75% step load change 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 1500 VDC Safety UL 1950 Pending CAN22.2-950 Pending TUV EN60950 Pending America’s USA 1-888-41-ASTEC Europe UK 44 1384 842-211 Asia HK 852-2437-9662 ALH25-Dual 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 Ordering Information Input Voltage 36 - 75VDC Output 1 Voltage 5.0V 20A Output 2 Voltage 3.3V 25A Note Enable Function "N" = negative logic enable without "N" = positive enable Maximum output power not to exceed 100W total for 5/3.3V version 20/25A . Any output loading ratio within the maximum specified limits is possible. Model Number ALH25AF48 Pin Assignments Dual Output -Vin Case Control on/off Vin+ V2 Rtn V2 Trim V2 V1 Rtn V1 Trim V1 20MHz bandwidth. An external 2.2mf ceramic capacitor is recommended to be placed from +V out to -V out. Recommended External components below C1 = 100uF/100V, C2=C4= metallic film .47uF/50V C3= C5 = Electrolytic 1000uF/10V, C6 = .01uF/1500V All specifications are typical at nominal line, full load, and 25°C unless otherwise noted. All specifications subject to change without notice. Mechanical drawings are for reference only. Please refer to the Technical Reference Notes for more information. Warranty 1 yr Astec Industry Standard

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Astec Industry Standard
100 Watts

ALH25-Dual

Total Power Input Voltages No. of Outputs:
100 Watts 48V Dual

Special Features
• 100W Output loadsharing
• 48VDC Input
• Open Frame x pkg.
• -40 to 120°C board 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

Environmental

Operating PCB temperature range -40°C to +120°C Storage temperature -55°C to +125°C Weight 80 grams

Electrical Specs

Input
36 to 75 VDC 48Vdc Nom. 88% typical

Fuse recommended 3A.MB 100V for 100mS

Output

Voltage tolerance
± 1%

Line regulation

Load regulation

Ripple/noise Temperature coefficient Transient response

Switching frequency
200mV P-P +0.02%/°C max 3% Vo max recovery <500msec 50% to 75% step load change 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
1500 VDC

Safety

UL 1950 Pending

CAN22.2-950 Pending

TUV EN60950 Pending

America’s USA 1-888-41-ASTEC

Europe UK 44 1384 842-211 Asia HK 852-2437-9662

ALH25-Dual

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
Ordering Information

Input Voltage
36 - 75VDC

Output 1 Voltage
5.0V 20A

Output 2 Voltage
3.3V 25A

Note Enable Function
"N" = negative logic enable without "N" = positive enable

Maximum output power not to exceed 100W total for 5/3.3V version 20/25A . Any output loading ratio within the maximum specified limits is possible.

Model Number ALH25AF48

Pin Assignments

Dual Output
-Vin Case Control on/off Vin+ V2 Rtn V2 Trim V2 V1 Rtn V1 Trim V1
20MHz bandwidth. An external 2.2mf ceramic capacitor is recommended to be placed from +V out to -V out.

Recommended External components below C1 = 100uF/100V, C2=C4= metallic film .47uF/50V C3= C5 = Electrolytic 1000uF/10V, C6 = .01uF/1500V

All specifications are typical at nominal line, full load, and 25°C unless otherwise noted.

All specifications subject to change without notice. Mechanical drawings are for reference only.

Please refer to the Technical Reference Notes for more information.

Warranty 1 yr

Astec Industry Standard

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ALH25AF48 Datasheet file may be downloaded here without warranties.

Datasheet ID: ALH25AF48 518810