Astec ALQ25B50N 300 watt Datasheet

Astec Industry Standard
300 Watts
Total Power:
Input Voltages:
No. of Outputs:
300W (12V @ 25A)
48V
Single
ALQ25B50
DC Transfromer
Electrical Specs
Input
Input Range1
Efficiency
Over Voltage Protection
Input UVLO1
42 to 53 VDC
96%@12V (Typ)
60V
39V to 42V
Output
Output Current
Line Regulation
Special Features
• High efficiency (96% Typical)
• -40°C to +100°C Ambient Air Operation
• Industry standard package Qtr Brick
1.48" x 2.30" x 0.40"
• High capacitive load limit on start-up
• 12V @ 25A Intermediate Bus Voltage for
DPA application
• Regulation to zero load
• Output Enable Pin
• Meets Basic Insulation
• Input UVLO and Overvoltage Protection
• Over Temperature Protection
Load Regulation
Noise/Ripple2
Transient Response
Over Current Limit1
Switching Frequency
0A to 25A max (300W output power)
10.25V to 13.60V
8.50V to 13.60V (for “-AL” option)
±3% Vo (Typical)
100mV (Typical)
200mV typical deviation
50% to 75% Load Change
100µs max recovery time
115% IO,MAX typical (latching)
800kHz
Control
Enable
TTL compatible
(Positive or Negative Enable Logic)
Isolation Voltage
Input to Output
2000Vdc max
Environmental
Ambient air operating temperature range:
-40°C to +100°C
Storage temperature: -55°C to +125°C
Overtemperature protection: 115°C typical
MTBF: > 1 million hours
* Specifications are subject to change without notice.
Safety
UL, cUL 60950
TUV EN60950
1
North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211Asia (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
ALQ25B50
Ordering Information
Input
Voltage
Output
Voltage
Output
Current
Efficiency
Model Number
42V
42V
42V
42V
36V
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
to
to
to
to
to
53V
53V
53V
53V
53V
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.
2.
3.
4.
5.
+ Vin
Enable
- Vin
- Vout
+ Vout
Notes:
5
4
0.15
[3.8]
1.04
[26.5]
2.00
[50.8]
PIN ASSIGNMENT
0.60
[15.2]
PIN SIDE UP
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 Industry Standard
www.astecpower.com
0.44
[11.2]
0.44
0.74 [11.2]
[18.9]
4. All specifications are typical at nominal line, full
load and 25oC ambient temp unless otherwise
noted.
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)
SIDE VIEW
PIN SIDE DOWN
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.
6. Warranty: 1yr
0.04Ø[1.0Ø]
2
3
1. Part number suffix “-AL” designates:
- 36V to 53V Input voltage range
- lower UVLO range (34V to 36V)
- Autorecovery mode after fault protection
5. Technical Reference Notes should be consulted
for detailed information when available.
0.38
[9.6]
0.06 Ø[1.5Ø]
1
1.48
[37.6]
3. Output may need to be derated and airflow
added when operating at elvetaed ambient
temperature.
0.22
0.20
[5.5]
[5.0]
2.30
[58.4]
2
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