VB408

Polarity : Positive
Maximum Operating Temperature : + 150 C
Output Type : Adjustable
Mounting Style : Through Hole
Package / Case : TO-220
Output Voltage : 1.25 V to 370 V
Output Current : 0.04 A
Load Regulation : 6 mV / mA
Input Voltage MAX : 400 V
Line Regulation : 100 uV / V


Features:

 INPUT VOLTAGE UP TO 400 V DC OR 285 V RMS RECTIFIED
OUTPUT VOLTAGE ADJUSTABLE FROM1.25 TO VIN-30V
OUTPUT CURRENT LIMITED TO 40 mA
THERMAL SHUT-DOWN PROTECTION
SHORT CIRCUIT PROTECTION


Specifications

Symbol	Parameter	Value			Unit
		TO-220	ISOWATT220	D2PAK
VIN,OUT	Input to Output Voltage at 20 mA	- 0.2 to 420			V
IOUT	Output current	Internally limited			mA
VESD	Electrostatic discharge (R=1.5k, C=100pF)	2000			V
Ptot	Power dissipation at TC=25	89	31	89	W
Tj	Junction operating temperature	- 40 to150
TSTG	Storage temperature	- 55 to 150

Description

The VB408, VB408B, VB408FI are fully protected positive adjustable voltage regulators made using a proprietary High Voltage VIPower] technology. The VB408, VB408B, VB408FI  devices can be connected to a D.C. source (up to 400V) or in off-line application directly to the rectified main (110V/230V). It is particularly suitable to be used in the manufacture of DC/DC converters, AC/DC converters,start-up circuits, pneumatic valve drivers and current sources. The device is able to drive resistive or inductive loads with an output voltage from 1.25V to VIN-30V providing an internally limited output current; it has built in short circuit and thermal shutdown protections. The device does not provide galvanic insulation from main.