(888) IPD-CONVerters q (888) 473-2668 q www.ipdconverters.com
QBS SERIES - 120 WATT
Rev. 04/2001
DESCRIPTION
FEATURES
QBS single output DC/DC converters provide up to • “Quarter-Brick”
• Water Washable
120 Watts of output power in an industry standard, • High Power Density Up • Outputs From
quarter-brick footprint. The QBS converters feature
To 120W
2.5V to 15V
open-frame packaging, along with planar magnetics to • Open-Frame Packaging • 1500V Isolation
provide maximum useable power with minimal
• 100°C Baseplate Operation • Positive or Negative
thermal constraints. The QBS is especially suited to
Enable Logic
telecom, networking, and industrial applications, and
is fully compatible with production board washing
processes.
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
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin 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 Iout Rated
Short Circuit Current Limit
OVP Trip Range
UVP Trip Range
OVP/UVP Type
±1%
0.2% Vout
0.5% Vout
0.5 VDC
10 % lout Rated
25% Iout
45%00Vµoust
±10%
Shutdown
110 - 140%
200% Iout
115 - 140% Vout Nom.
70 - 90% Vout Nom.
Latching
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
Vin
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 106 hrs
UL, CUL, TUV
1.7 oz
1
Efficiency vs. Load (48V Input)
90
85
80
QBS100ZG-ANT
75
EFF. (36v)
70 EFF. (48v)
EFF. (75v)
65
60
10 20 30 40 50 60 70 80 90 100
LOAD%
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.
