QAW48T12-40 Datasheet, PDF (1/5 Pages) Wall Industries,Inc. – QAW48T12-40

Rev. B
APPLICATION NOTES
QAW48T12-40
Technical Specifications
Model No. QAW48T12-40
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
Related condition
Min
Nom
Max
INPUT
Turn On At
Turn Off At
Input Over Voltage Shutdown
Turn On At
Turn Off At
Operating Voltage Range
Maximum Input Current
No Load Input Current
Input Current under “LOGIC OFF”
Inrush Current Transient Rating
Reflected Ripple Current
Rated Input Voltage
Low Line 100% Load
20MHz w/low source impedance
16.5
15.5
77.5
76.5
18
48
75
2.74
28
4
1
725
OUTPUT
Output Voltage Set point
Output Voltage Regulation
Over Load
Over Line
Over Temperature
Output Voltage Ripple and Noise
Basic Ripple
Spikes P-P
Output Current Ranges
Output Current Limit
Short Term Output Current Surge
Rated Output Current
Self Resetting
4.95/±10.81
0.4 / ±0.083
5.2 / ±1.083
5 / ±12
1 / ±5
1 / ±1
0.2 / 1
25
50
6 / ±1.25
5.05/±13.20
100
100
4 / ±0.833
6.8 / ±1.417
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection
120 Hz
60
Output Transient and Load Changes
Load Step / ΔV
X
50 to 75%
50 to 100%
55
Load Step / ΔV
X
75 to 50%
100 to 50%
50
Recovery Time
To within 1% Rated Vo
90
Turn On Delay
From Vin (nom) to 90% Vout (Nom)
475
Overshoot of Output Voltage
Full Load Resistive
0
EFFICIENCY
@ 100% load
82
@ 75% load
82
@ 50% load
80
@ 25% load
76
TEMPERATURE CONSIDERATIONS
Thermal Resistance
Normal Convection
Rθc-a
5.09
100 lfm
200 lfm
300 lfm
400 lfm
Heatsink Considerations
Available, Contact Factory
GENERAL TECHNICAL DATA
Switching Frequency
Remote ON/OFF Control
Trimmability
Over Temperature Shutdown
Fixed
Active HIGH, Open Collector
Case Temperature
350
4.75 / ±11.4
5.25 / ±12.6
105
MTBF
Bellcore TR-332
3.51E6
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
A² Sec
mA
Vdc
%
%
% / °C
mV
mV
A
A
A/sec
dB
mV
mV
µs
µs
%
%
%
%
%
°C / Watt
°C / Watt
KHz
TTL
Vdc
°C
Hours
02/24/2010
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax [phone]
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