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(888) IPD-CONVerters
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(888) 473-2668
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www.ipdconverters.com
QBS SERIES - 120 WATT
Rev. 04/2001
DESCRIPTION
FEATURES
QBS single output DC/DC converters provide up to
120 Watts of output power in an industry standard,
quarter-brick footprint. The QBS converters feature
open-frame packaging, along with planar magnetics to
provide maximum useable power with minimal
thermal constraints. The QBS is especially suited to
telecom, networking, and industrial applications, and
is fully compatible with production board washing
processes.
• “Quarter-Brick”
• High Power Density Up
To 120W
• Open-Frame Packaging
• 100°C Baseplate Operation • Positive or Negative
Enable Logic
• Water Washable
• Outputs From
2.5V to 15V
• 1500V Isolation
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reverse Voltage Protection
18 - 36 VDC
36 - 75 VDC
Shunt Diode
Output
Setpoint Accuracy
±1%
Line Regulation Vin Min. - Vin Max., Iout Rated
0.2% Vout
Efficiency vs. Load (48V Input)
Load Regulation Iout Min. - Iout Max., Vin Nom.
Remote Sense Headroom
0.5% Vout
0.5 VDC
90
85
Minimum Output Current
10 % lout Rated
Dynamic Regulation, Loadstep
25% Iout
Pk Deviation
Settling Time
4% Vout
500 µs
80
QBS100ZG-ANT
Voltage Trim Range
Short Circuit And Overcurrent Protection
Current Limit Threshold Range, % of Iout Rated
Short Circuit Current Limit
±10%
Shutdown
110 - 140%
200% Iout
75
EFF. (36v)
EFF. (48v)
EFF. (75v)
70
65
OVP Trip Range
115 - 140% Vout Nom.
60
UVP Trip Range
OVP/UVP Type
70 - 90% Vout Nom.
Latching
10
20
30
40
50
60
70
80
90
100
LOAD%
General
Turn-On Time
Remote Shutdown
30 ms
Positive or Negative Logic
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case
Vin Negative
400 kHz
Notes
1500 VDC
1050 VDC
†
MTBF predictions may vary slightly from model to model.
Output - Case
1050 VDC
0.02 ppm/°C
Specifications typically at 25°C, normal line, and full load, unless otherwise stated.
Temperature Coefficient
Case Temperature
Operating Range
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
-40°C To +100°C
-40°C To +125°C
105°C To 115°C
5 g, 10 - 55 Hz
2.5 X 106 hrs
UL, CUL, TUV
1.7 oz
Storage Range
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
MTBF† (Bellcore TR-NWT-000332)
Safety
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
Units are water-washable and fully compatible with commercial spray or immersion
post wave-solder washing equipment.
Weight (Approx.)
1