TS19310ACX6RFG datasheet(5/8 Pages) TSC

5 / 8 page

TS19310A/B

Single-Stage PFC

TRIAC Dimmable LED Driver

5/8

Version: A14

Typical Application Circuit

Application Information

Function Description

The TS19310 is boundary conduction mode (BCM) operation with constant on time based regulator design to

achieve high power factor performance. The TS19310 has built-in functions of phase dimmable, and included

protection function related VCC over-voltage protection, open-LED protection, short-LED protection, over-

temperature protection, primary side current limit, and gate clamp is within. The TS19310 is the sense switch

current from CS voltage multiplier by test data input signal (TDIS) to get the output current information by system

close loop feedback.

The average output current can express by below formula.

OUT

0.333







Where:

● I

OUT is the average output current

● N

P is the primary-side turn ratio

● N

S is the secondary-side turn ratio

● 0.333 is the reference potential setting of IC

● 2 is the reference potential setting of IC

● η is the efficiency

● R

S is the sensing resistor connected between the MOSFET source and the GND

Pin Detail

Pin 1: Compensation

This is the output of the gm amplifier. Connect with a suitable RC network to ground.

Pin 2: Ground

GND is the reference node of internal circuit.

TS19310ACX6RFG データシート(PDF) 5 Page - Taiwan Semiconductor Company, Ltd

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