TS19603 datasheet(2/6 Pages) TSC

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TS19603

400mA High Voltage Adjustable Current Regulator

With Enable Control

2/6

Version: A13

Electrical Specification (VIN=24V, TA=25

oC, unless otherwise specified.)

Parameter

Conditions

Min

Typ

Max

Unit

Output Current

VOUT =0.5V, RSET=3kΩ

200

VOUT =0.5V, RSET=1.5kΩ

400

Output Current Deviation

VOUT =0.5V, IOUT =200mA~400mA

±5

SET Current Range

200

900

µA

Minimum Output Current

ISET=200µA

100

Maximum Output Current

ISET=900µA

450

Output Dropout Voltage

ISET=800µA (Note 1)

0.28

Load Regulation

VOUT =0.5V to 3V, IOUT =200mA

mA/V

Line Regulation

VOUT =0.5V, IOUT =350mA, VIN=5~50V

0.08

0.15

%/V

Enable Low Input Voltage

0.8

Enable High Input Voltage

Should lower than VIN

Enable Low Input Current

-20

+20

µA

Enable High Input Current

-5

µA

Output Enable Delay Time

EN from low to high. VOUT=0.5V,

IOUT=350mA, Duty 50%

µS

Output Disable Delay Time

EN from high to low. VOUT=0.5V,

IOUT=350mA, Duty 50%

µS

Supply Current Consumption

Note 1: Output Dropout Voltage: Duty 90% x IOUT @ VOUT=0.5V

Note 2: Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device.

These are for stress ratings. Functional operation of the device at these or any other conditions beyond those

indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating

conditions for extended periods may remain possibility to affect device reliability.

Note 3: Thermal Resistance is specified with the component mounted on a low effective thermal conductivity test

board in free air at TA=25°C.

Note 4: 2 square inch of FR-4, double sided, 1 oz. minimum copper weight.

Note 5: Devices are ESD sensitive. Handling precaution recommended.

Pin Function Description

Pin Name

Pin Function

VIN

Power Supply Pin

OUT

Output pin. Sink current is decided by the current on RSET connected to ISET pin.

ISET=1.2V x 500/RCS

GND

Ground Pin

Output Stage Enable Control pin. High enable the output pin. It can be left floating for normally

on.

ISET

Output Current Setting pin. Connect a resistor from ISET to GND to set the LED bias current

ISET=0.002 x IOUT=1.2V/RCS

TS19603 Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

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