ALQ25B50 Datasheet, PDF (2/2 Pages) Astec America, Inc – 300 Watts

AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: [phone]
Facsimile: 760-930-0698
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: [phone]
Facsimile: 44 (1384) 843-355
ASIA
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: [phone]
Facsimile: 852-2402-4426
Ordering Information
Input
Voltage
Output
Voltage
Output
Current
Efficiency
Model Number
42V to 53V
42V to 53V
42V to 53V
42V to 53V
36V to 53V
12.0V
12.0V
12.0V
12.0V
12.0V
25A*
25A*
25A*
25A*
25A*
96% Typ
96% Typ
96% Typ
96% Typ
96% Typ
ALQ25B50
ALQ25B50-6
ALQ25B50N
ALQ25B50N-6
ALQ25B50N-AL
OPTIONS:
Enable Function
"N" = negative logic enable
without "N" = positive logic enable (default)
Pin Length Option “-6” = 3.7mm (nominal)
Standard pin length is 5mm nominal
Others
“-AL” = Autorecovery mode and lower UVLO range (34V to 36Vdc)
* Derating / airflow required at elevated ambient operating temperature, consult the Technical Rreference Notes
Pin Assignments
Single Output
1. + Vin
2. Enable
3. - Vin
4. - Vout
5. + Vout
Notes:
1. Part number suffix “-AL” designates:
- 36V to 53V Input voltage range
- lower UVLO range (34V to 36V)
- Autorecovery mode after fault protection
2. 20MHz BW limited with external 10uF tantalum
cap. + 0.1uF ceramic cap across the output.
220uF low ESR cap required across the input
pins.
3. Output may need to be derated and airflow
added when operating at elvetaed ambient
temperature.
4. All specifications are typical at nominal line, full
load and 25^oC ambient temp unless otherwise
noted.
5. Technical Reference Notes should be consulted
for detailed information when available.
6. Warranty: 1yr
1
1.48
[37.6] ²
3
0.15
[3.8]
1.04
[26.5]
0.44
0.74 [11.2]
[18.9]
2.30
[58.4]
0.38
[9.6]
5
4
0..2220
[5.50]]
0.06 Ø[1.5Ø]
0.04Ø [1.0Ø]
PIN SIDE DOWN
2.00
[50.8]
PIN SIDE UP
SIDE VIEW
0.44
[11.2]
PIN ASSIGNMENT
0.60
[15.2]
1 + Vin
2 Enable (On/Off)
3 -VIN
4 - Vout
5+ Vout
NOTES:
ALL DIMENSIONS ARE IN INCHES (MILLIMETERS)
PIN PLACEMENT TOLERANCE : ± 0.005(0.127)
MECHANICAL TOLERANCE ± .002(0.5)
Astec reserves the right to make changes to the information
contained herein without notice and assumes no liability as a
result of its use or application. (REV 01: APRIL 7, 2005)
www.astecpower.com
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