(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
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.
FEATURES
• “Quarter-Brick”
• High Power Density Up
To 120W
• Open-Frame Packaging
• 100°C Baseplate Operation
• Water Washable
• Outputs From
2.5V to 15V
• 1500V Isolation
• Positive or Negative
Enable Logic
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reverse Voltage Protection
Output
Setpoint Accuracy
Line Regulation V
in
Min. - V
in
Max., I
out
Rated
Load Regulation I
out
Min. - I
out
Max., V
in
Nom.
Remote Sense Headroom
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit And Overcurrent Protection
Current Limit Threshold Range, % of I
out
Rated
Short Circuit Current Limit
OVP Trip Range
UVP Trip Range
OVP/UVP Type
General
Turn-On Time
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
MTBF
†
(Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
30 ms
Positive or Negative Logic
V
in
Negative
400 kHz
1500 VDC
1050 VDC
1050 VDC
0.02 ppm/°C
-40°C To
+
100°C
-40°C To
+
125°C
105°C To 115°C
5 g, 10 - 55 Hz
2.5 X 10
6
hrs
UL, CUL, TUV
1.7 oz
†
18 - 36 VDC
36 - 75 VDC
Shunt Diode
±1%
0.2% V
out
0.5% V
out
0.5 VDC
10 % l
out
Rated
4% V
out
500
µs
±10%
Shutdown
110 - 140%
115 - 140% V
out
Nom.
70 - 90% V
out
Nom.
Latching
200% I
out
25% I
out
EFFICIENCY %
Efficiency vs. Load (48V Input)
90
85
80
QBS100ZG-ANT
75
EFF. (36v)
70
65
60
10
20
30
40
EFF. (48v)
EFF. (75v)
50
60
LOAD%
70
80
90
100
Notes
MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless otherwise stated.
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.
Units are water-washable and fully compatible with commercial spray or immersion
post wave-solder washing equipment.
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POWER-ONE [ POWER-ONE ]
