Datasheet

rev.
page
date
DESCRIPTION: dc-dc converter
2 of 6
05/2009
20050 SW 112
th
Ave. Tualatin, Oregon 97062 phonephone 503.612.2300 faxfax 503.612.2382
PART NUMBER: VHB75
NOTES:
1. Measured from high line to low line
2. Measured from full load to zero load
3. On/Off Control: Positive logic default. Referenced to -Vin. Open collector.
Module ON...open circuit
Module OFF...<0.8Vdc
4. For negative logic On/Off control, add suffix “N” to the model number
INPUT
Input Voltage Range 12V: 9-18V
24V: 18-36V
48V: 36-75V
Under Voltage Lockout 12 Vin: power up 8.8V
power down 8V
24Vin: power up 17V
power down 16V
48Vin: power down 34V
power down 32.5V
ON/OFF Control see notes 3&4
Input Filter PI Type
OUTPUT
Voltage Accuracy ±1% max.
Transient Response: 25% Step Load Change <500μ sec.
External Trim Adj. Range ±10%
Ripple & Noise 2.5V, 3.3V, 5V 20 mV RMS., max
20MHz BW 75 mV p-p., max
12V & 15V 30 mV RMS., max
100 mV p-p., max
24V 100 mV RMS., max
240 mV p-p, max
Temperature Coefficient ±0.03%/°C
Short Circuit ProtectionContinuous
Safety 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 see table
Isolation Voltage Input/Output 1500VDC min.
Input/Case 1500VDC min.
Output/Case 1500VDC min.
Isolation Resistance 10
7
Ohm min.
Switching Frequency 12-24Vin 400kHz, Typ.
48Vin 300kHz, Typ
Operating Case Temperature -40°C ~ +100°C
Storage Temperature -55°C ~ +105°C
Thermal Shutdown, Case Temp. 100°C Typ.
Dimensions 2.28x2.40x0.50 inches
(57.9x61.0x12.7mm)
Case Material aluminum
For more information, please visit the product page.