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(888) IPD-CONVerters
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(888) 473-2668
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www.ipdconverters.com
QAS SERIES - 50 WATT
DESCRIPTION
FEATURES
QAS DC/DC converters are designed to provide
higher output voltages for telecom and industrial
applications. The QAS features remote sense for
accurate point of load regulation, five-sided shielding,
and 1500 VDC isolation. The QAS also provides
output voltage trim, overcurrent, short circuit, and
overvoltage protection, allowing use in a wide range of
applications.
• Overvoltage Protection
• Wide Range Input
• Short Circuit Protection
• 5-Sided Shielding
• Remote Enable
• 1500V Isolation
• Remote Sense and
Voltage Trim
Efficiency vs. Load (48V Input)
95
90
85
80
75
QAS060Z57
EFF. (36v)
EFF. (48v)
EFF. (75v)
10
20
30
40
50
60
70
80
90
100
LOAD %
TECHNICAL SPECIFICATIONS
Input
General
Turn-On Time 5V Output
10 ms
15 ms
Positive Logic
300 kHz
Voltage Range
48 VDC Nominal
Reflected Ripple
Input Reverse Voltage Protection
Input Undervoltage Lockout
Turn On
Turn-On Time 57V and 60V Outputs
Remote Shutdown
Switching Frequency
Isolation
Input - Output
Input - Case
36 - 72 VDC
50 mA
Shunt Diode
1500 VDC
1050 VDC
500 VDC
0.03%/°C
34 VDC
30 VDC
Turn Off
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Output
-25 To +85°C
-40 To +125°C
95%
Setpoint Accuracy
±1%
Storage Range
Line Regulation Vin Min. - Vin Max., Iout
Load Regulation Iout Min. - Iout Max., Vin Nom.
Minimum Output Current
Rated±0.2%
V
out
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF† (Bellcore TR-NWT-000332)
Safety
±0.2% Vout
5 g
10 % Iout, Rated
25% Iout
Consult Factory
Consult Factory
4.0 oz
Dynamic Regulation, Loadstep
Weight (Approx.)
Pk Deviation 57V and 60V Outputs
8% Vout
Pk Deviation 5V Outputs
4% Vout
Settling Time
Voltage Trim Range
Ripple and Noise, RMS, 100 MHz BW, 5V Output
Ripple and Noise, RMS, 100 MHz BW, 57V and 60V Outputs
Short Circuit / Overcurrent Protection
500 µs
±10%
100 mV Pk-Pk
Notes
1
For negative logic, add suffix “N” to model number.
200 mV Pk-Pk
†
Shutdown / Hiccup
MTBF predictions may vary slightly from model to model.
Current Limit Threshold Range, % of Iout
Rated110
-
130%
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
OVP Trip Range
OVP Type
120 - 140% Vout Nom.
Second Control Loop
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
C-28