QBS DC/DC Series Data Sheet
Description
Features
• Water Washable
• Outputs From
2.5V to 15V
• 1500V Isolation
• Positive or Negative
Enable Logic
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
Technical Specifications
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reverse Voltage Protection
18 - 36 VDC
36 - 75 VDC
Shunt Diode
Output
Rated
Setpoint Accuracy
±1%
Efficiency vs. Load (48V Input)
Line Regulation V Min. - V Max., I
0.2% V
0.5% V
0.5 VDC
in
in
out
out
Load Regulation I
Min. - I
Max., V Nom.
out
out
in
out
Remote Sense Headroom
Minimum Output Current
90
85
80
75
70
65
60
10 % l
Rated
out
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
25% I
4% V
500 m s
±10%
out
out
QBS100ZG-ANT
Voltage Trim Range
Short Circuit And Overcurrent Protection
Current Limit Threshold Range, % of I
Shutdown
110 - 140%
EFF. (36v)
EFF. (48v)
EFF. (75v)
Rated
out
Short Circuit Current Limit
OVP Trip Range
UVP Trip Range
200% I
out
115 - 140% V
70 - 90% V
Nom.
Nom.
out
out
OVP/UVP Type
Latching
10
20
30
40
50
60
70
80
90
100
LOAD%
General
Turn-On Time
30 ms
Notes
MTBF predictions may vary slightly from model to model.
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case
Positive or Negative Logic
V
Negative
400 kHz
†
in
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
1500 VDC
1050 VDC
1050 VDC
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
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
0.02 ppm/°C
Safety: Agency approvals may vary from model to model. Please consult
factory for specific model information.
-40°C To +100°C
-40°C To +125°C
105°C To 115°C
5 g, 10 - 55 Hz
Units are water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.
6
2.5 X 10 hrs
UL, cUL, TUV
1.7 oz
Weight (Approx.)
REV. JUL 11, 2003
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