CUI VHB50-D48-S24

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VHB50 Series Half Brick DC to DC Converter
Rev. 06-2006
Features
·25/50W isolated output
·Efficiency to 85%
·300KHz switching frequency
·2:1 input range
·Regulated outputs
·Continuous short circuit protection
·Five-sided metal case
·Industry standard half-brick package
Model
Number
VHB50-D12-S2R5
VHB50-D12-S3R3
VHB50-D12-S5
VHB50-D12-S12
VHB50-D12-S15
VHB50-D12-S24
VHB50-D24-S2R5
VHB50-D24-S3R3
VHB50-D24-S5
VHB50-D24-S12
VHB50-D24-S15
VHB50-D24-S24
VHB50-D48-S2R5
VHB50-D48-S3R3
VHB50-D48-S5
VHB50-D48-S12
VHB50-D48-S15
Input
Voltage
9-18VDC
9-18VDC
9-18VDC
9-18VDC
9-18VDC
9-18VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
Output
Voltage
2.5VDC
3.3VDC
5VDC
12VDC
15VDC
24VDC
2.5VDC
3.3VDC
5VDC
12VDC
15VDC
24VDC
2.5VDC
3.3VDC
5VDC
12VDC
15VDC
Output
Current
10A
10A
10A
4.16A
3.33A
2.08A
10A
10A
10A
4.16A
3.33A
2.08A
10A
10A
10A
4.16A
3.33A
VHB50-D48-S24
36-75VDC
24VDC
2.08A
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
I nput Current
No Load
Full Load
50mA
2740mA
50mA
3525mA
50mA
5145mA
50mA
4950mA
50mA
4950mA
50mA
4950mA
50mA
1353mA
50mA
1740mA
50mA
2540mA
50mA
2450mA
50mA
2450mA
50mA
2419mA
50mA
676mA
50mA
870mA
50mA
1250mA
50mA
1220mA
50mA
1220mA
50mA
1290mA
www.v-infinity.com
Efficiency
76%
78%
81%
84%
84%
84%
77%
79%
82%
85%
85%
86%
77%
79%
83%
85%
85%
86%
1-866-372-1258
2/4
VHB50 Series Half Brick DC to DC Converter
Rev. 06-2006
Input
Input Voltage Range
Under Voltage Lockout
12V
9-18V
24V
48V
18-36V
36-75V
12Vin power up
12Vin power down
8.8V
8V
24Vin power up
24Vin power down
17V
16V
48Vin power up
48Vin power down
34V
32.5V
Positive Logic Remote ON/OFF 3,4
Input Filter
PI Type
Output
Voltage Accuracy
Transient Response: 25% Step Load Change
External Trim Adj. Range
Ripple & Noise
20MHz BW, 2.5V, 3.3V, 5V
±1% max.
<500µ sec.
±10%
20mV RMS., max
75mV pk-pk, max
12V& 15V
30mV RMS., max
100mV pk-pk, max
24V
100mV RMS., max
240mV pk-pk, max.
Temperature Coefficient
±0.03%/°C
Short Circuit Protection
Continuous
Safety
VHB50-D12-XXXX approved to UL60950-1 (E222736)
VHB50-D24/D48-XXXX approved to UL1950 (E222736)
Line Regulation 1
±0.2% max
Load Regulation 2
±0.2% max
Over Voltage Protection trip Range, % Vo nom.
115-140%
Current Limit
110-150% Nominal Output
General Specifications
Efficiency
Isolation Voltage
see table
1500VDC min.
1500VDC min.
1500VDC min.
Input/Output
Input/Case
Output/Case
10 7 Ohm min.
Isolation Resistance
Switching Frequency
(12/24) Vin.
400KHz, Typ.
48 Vin.
300KHz, Typ.
Operating Case Temperature
-40°C to 100°C
Storage Temperature
-55°C to 105°C
Thermal Shutdown, Case Temp.
100°C Typ.
Dimensions
2.28x2.40x0.50 inches
57.9x61.0x12.7mm
Case Material
aluminum
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
VHB50 Series Half Brick DC to DC Converter
Rev. 06-2006
Application Notes
Derating:
The operating case temperature range of the VHB50 series is -40°C to +100°C. When operating the VHB50, proper derating or
cooling is needed. Following is the derating curve of VHB50 without heat sink.
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
4/4
VHB50 Series Half Brick DC to DC Converter
Rev. 06-2006
Remote ON/OFF Control
The VHB50 series allows the user to switch the module on and off electronically with the remote on/off feature. The VHB50
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