VHB50 Series Half Brick DC to DC Converter

2 / 4

Rev. 06-2006

V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062

www.v-infinity.com

1-866-372-1258

Input

Input Voltage Range

12V

9-18V

24V

18-36V

48V

36-75V

Under Voltage Lockout

12Vin power up

8.8V

12Vin power down

8V

24Vin power up

17V

24Vin power down

16V

48Vin power up

34V

48Vin power down

32.5V

Input Filter

PI Type

Output

Voltage Accuracy

±1% max.

Transient Response: 25% Step Load Change

<500µ sec.

External Trim Adj. Range

±10%

Ripple & Noise

20MHz BW, 2.5V, 3.3V, 5V

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)

±0.2% max

±0.2% max

Over Voltage Protection trip Range, % Vo nom.

115-140%

Current Limit

110-150% Nominal Output

General Specifications

Efficiency

see table

Isolation Voltage

Input/Output

1500VDC min.

Input/Case

1500VDC min.

Output/Case

1500VDC 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.