TS19704

Single-Stage Primary-Side Control

with High PFC LED Driver

1/7

Version: C12

SOP-8

Description

The TS19704 is a Primary-Side Control IC, high efficiency and simpler design with active power factor correction

especially for LED lighting applications. The IC achieves high power factor and low THD operation by

Discontinuous Conduction Mode (DCM) and constant on time. Precise constant current control regulates about

±3% accurate versus changes in input voltage and output voltage. TS19704 also provides gate driving voltage

clamping, Vcc overvoltage protection and system output open/short circuit protection to increase device

performance.

Features

●

Primary-side feedback control

●

Universal Input Voltage from 90VAC ~ 264VAC

●

Built-in Active Power Factor Correction

●

Constant Output Current Control

●

DCM Constant On-Time topology

●

Good Line and Load Regulation

●

Open-LED Protection on DMG pin

●

Over-Voltage Protection on VCC pin

●

Short-LED Protection

●

Cycle by Cycle Over current Protection on CS pin

●

Over-Temperature Protection

●

Programmable switching frequency by RT Pin

●

Gate Driving Voltage Clamping

Application

●

LED Down Light

●

LED Tube

●

LED PAR Lamp

●

LED Bulb

Ordering Information

Part No.

Package

Packing

TS19704CS RLG

SOP-8

2.5Kpcs / 13” Reel

Note: “G” denote for Halogen Free Product

Application Circuit

Pin Definition:

1. RT

8. VINT

2. DMG

7. COMP

3. VCC

6. GND

4. OUT

5. CS