40 Amps
ALQ40
High Efficiency Quarter Brick
Total Power:
Input Voltages:
No. of Outputs:
144W
48V
Single
Preliminary
Input
Electrical Specs
Input Range
Input Surge
Efficiency
36 to 75 VDC
100V /100ms
91%@3.3V Typ
Output
Load Regulation
Line Regulation
Voltage Tolerance
Noise/Ripple
10mV typical down to no load
(3V3 output and below)
10mV typical
(3V3 output and below)
±1%
100mV max typ
150mV max for 5V
Up to 10% of Vo
5% max deviation with 25% to 75% full
(output 5V and above)
200mV (output below 5V)
500µs (max) recovery
140% nominal output
140% nominal output
200KHz (typ)
Special Features
• High efficiency (91% Typical)
• -40°C to +70°C Ambient Air Operation
• Industry standard package
1.48" x 2.30" x 0.38"
• High capacitive load limit on start-up
• Remote sense compensation
• Basic insulation
• Regulation to zero load
• Fixed frequency switching (200KHz)
Remote sense
Transient Response
Overvoltage Protection
Current Limit
Switching Frequency
Control
Voltage Adjust
90 to 110% for 5V output
80 to 110% for 3.3V and below
TTL compatible
(positive & negative enable options)
Enable
Environmental
Ambient air operating temperature range:
-40°C to +70°C
Storage temperature: -40°C to +125°C
Overtemperature protection: 115°C typical
MTBF: > 1 million hours
Safety
UL,cUL 60950
TUV
EN60950
REV 03: Dec 2003
1
North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-9662
ASTEC [ Astec America, Inc ]
