TS19603

400mA High Voltage Adjustable Current Regulator

With Enable Control

3/6

Version: A13

Application Information

TS19603 is a high voltage, low dropout current regulator for maximum output current up to 400mA with OE pin

control. The current could be linearly adjusted through variable resister connected to ISET pin, or by PWM control

via OE pin. Although the absolute maximum rating of OUT pin 75V, the dropout voltage between OUT pin and

GND pin should not be too large when current is sinking because of the thermal dissipation capability of the

package.

Here are some of the typical application examples:

DC Voltage Input

Any DC voltage level between 5V to 50V could be adopted as power source VDD for typical application of

TS19603 as long as VDD is larger than the total forward voltage drop of the LED string (at expecting current) by

0.35V. If 50V ~ 60V voltage level is adopted as power source to positive end of the LED string, one Zener shunt

regulator could be used to provide appropriate voltage to VDD pin.

TS19603

TS19603