50-Watt Half-Brick
HBS50 DC-DC Series Data Sheet
REV. JAN 29, 2004
Efficiency vs. Load (24V Input)
Technical Specifications
HBS DC/DC converters provide up to 50 watts of output
power in an industry-standard, half-brick footprint.
The
HBS units feature excellent efficiency, Class A conducted
noise specs, and fixed switching frequency.
The HBS,
using open-frame packaging, along with planar magnetics
provides maximum useable power with minimal thermal
constraints.
The HBS Series is especially suited to
telecom, networking, and industrial applications.
Description
Industry-standard half-brick
Open-frame packaging
100°C baseplate operation
Water washable
“True-trim” option
1500V isolation
Positive or negative logic
Features
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.
Setpoint Accuracy
±1%
Line Regulation Vin Min. - Vin Max., Iout Rated
±0.2% Vout
Load Regulation Iout Min. - Iout Max., Vin Nom.
±0.2% Vout
Remote Sense Headroom
0.5 VDC
Minimum Output Current
10%, Iout Rated
Dynamic Regulation, Loadstep
25% Iout
Pk Deviation
4% Vout
Settling Time
500 ms
Voltage Trim Range
±10%
Short Circuit / Overcurrent Protection
Hiccup
Current Limit Threshold Range, % of Iout Rated
110 - 140%
OVP Trip Range
115 - 140% Vout Nom.
OVP
Hiccup
Output
Voltage Range
24 VDC nominal
18 - 36 VDC
48 VDC nominal
34 - 75 VDC
Reflected Ripple
25 mA
Input Reverse Voltage Protection
Shunt Diode
Input
60
65
70
75
80
85
90
95
10
20
30
40
50
60
70
80
90
100
LOAD %
HBS050ZG-A
HBS050ZH-A
HBS050Z10.5-A
60
65
70
75
80
85
90
95
10
20
30
40
50
60
70
80
90
100
LOAD %
EFFICIENCY
%
HBS050YG-A
HBS050YH-A
HBS050YJ-A
Efficiency vs. Load (48V Input)
Turn-On Time
10 ms
Remote Shutdown
Positive or Negative Logic
Remote Shutdown Reference
Vin Negative
Switching Frequency
500 kHz
Isolation
Input - Output
1500 VDC
Input - Case
1050 VDC
Output - Case
500 VDC
Temperature Coefficient
0.2%/°C
Case Temperature
Operating Range
-40 to +100°C
Storage Range
-40 to +125°C
Thermal Shutdown Range
105 to 115°C
Vibration, 3 Axes, 5 Min Each
5 g, 10 - 55 Hz
MTBF (Bellcore TR-NWT-000332)
2.1 x 106 hrs
Safety
UL, cUL
Weight (approx.)
2.5 oz
General
Page 1 of 3