1/4
VHB150 Half Brick DC-DC Converter
Rev. 09-2007
Features
·75-150W isolated output
·Efficiency to 85%
·500KHz switching frequency
·2:1 input range
·Regulated outputs
·Continuous short circuit protection
·Five-sided metal case
·Industry standard half-brick pack-
age
Model
Number
VHB150-D48-S2R5
VHB150-D48-S3R3
VHB150-D48-S5
VHB150-D48-S12
VHB150-D48-S15
VHB150-D48-S24
Input
Voltage
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
Output
Voltage
2.5VDC
3.3VDC
5VDC
12VDC
15VDC
24VDC
Output
Current
30A
30A
30A
12.5A
10A
6.25A
I nput Current
No Load
Full Load
25mA
2.6A
25mA
2.6A
25mA
25mA
25mA
25mA
3.7A
3.6A
3.6A
3.6A
Efficiency
74%
79%
83%
85%
85%
85%
Pin Connection
Pin
1.
2.
3.
4.
5.
6.
7.
8.
9.
Function
Vin
ON/OFF
-Vin
-Vout
-Vout
-Sense
Trim
+Sense
+Vout
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
2/4
VHB150 Half Brick DC-DC Converter
Rev. 09-2007
Input
Input Voltage Range
Under Voltage Lockout
Positive Logic Remote ON/OFF
3,4
Input Filter
48V
48Vin power up
48Vin power down
36-75V
34V
32.5V
PI Type
Output
Voltage Accuracy
Transient Response:
External Trim Adj. Range
Ripple & Noise
25% Step Load Change
20MHz BW, 2.5V, 3.3V, 5V
12V& 15V
24V
Temperature Coefficient
Short Circuit Protection
Line Regulation
1
Load Regulation
2
Over Voltage Protection trip Range, % Vo nom.
Current Limit
Nominal Output
±1% max.
<500μ sec.
±10%
40mV RMS., max
100mV pk-pk, max
60mV RMS., max
150mV pk-pk, max
100mV RMS., max
240mV pk-pk, max.
±0.03%/°C
Continuous
±0.2% max
±0.2% max
115-140%
110-140%
General Specifications
Efficiency
Isolation Voltage
Input/Output
Input/Case
Output/Case
see table
1500VDC min.
1500VDC min.
1500VDC min.
10
7
Ohm min.
500KHz, Typ.
-40°C to 100°C
-40°C to 105°C
100°C Typ.
2.28x2.40x0.50 inches
57.9x61.0x12.7mm
Case Material
aluminum
Isolation Resistance
Switching Frequency
Operating Case Temperature
Storage Temperature
Thermal Shutdown, Case Temp.
Dimensions
NOTES:
1. Measured from High Line to Low Line
2. Measured from Full Load to Zero Load
3. Logic Compatibility: Open Collector ref to -Input
Module ON: Open Circuit
Module OFF: < 0.8VDC
4. Suffix “N” to the Model Number with Negative Logic Remote ON/OFF
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
3/4
VHB150 Half Brick DC-DC Converter
Rev. 09-2007
Application Notes
Derating:
The operating case temperature range of the VHB150 series is -40°C to +100°C. When operating the VHB150, proper derating
or cooling is needed. Following is the derating curve of VHB150 without heat sink.
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
4/4
VHB150 Half Brick DC-DC Converter
Rev. 09-2007
Remote ON/OFF Control
The VHB150 series allows the user to switch the module on and off electronically with the remote on/off feature. The VHB150
series is available with “positive logic” or “negative logic” options.
External Output Trimming
Output may optionally be externally trimmed (±10%) with a fixed resistor or an external trimpot as shown.
Output Noise
The output noise is measured with a 10μF tantalum capacitor and a 1.0μF ceramic capacitor across the output.
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
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