TS19320CS

Phase-Cut Dimmable Flyback or Buck-Boost Current Control

with Active PFC for LED lighting

The TS19320CS is a phase-cut (TRIAC) dimmable constant current control IC with active

power factor correction isolated or non-isolated AC-DC LED lighting control. The

TS19320CS is configurable as an isolated, primary-side-regulated Flyback controller or

non-isolated Buck-Boost converter. It is compatible with many types of TRIAC dimmers

including leading-edge and trailing-edge. The IC achieves a high power factor and low

total harmonic distortion (THD) and guarantees constant current accuracy to <±5%

using Boundary Conduction Mode (BCM) operation. The TS19320CS has built-in

protection circuits such as gate voltage clamping, over temperature protection by

current degeneration, VCC overvoltage protection and system output open/short

circuit protection.

Features:

• Constant current accuracy <±5%

• Flyback or Buck-Boost w/o photocoupler

• Boundary-mode PFC operation

• Built-in active power factor correction

• High voltage (500V) startup circuit

• Open-LED demagnetization (DMG) protection

• VCC over-voltage protection (OVP)

• Over-temperature protection (OTP)

• Shorted-LED Protection

• Cycle-by-cycle current limit

• Gate drive voltage clamping

ISSUE NO.2

Mar. 2016

www.taiwansemi.com

NEW PRODUCT

ANNOUNCEMENT

1. HV

8. GND

2. RT

7. OUT

3. CS

4. COM

5. DMG

Pin Definition:

SOP-8

Application:

• LED lighting

• Down lights, Tube lamps, PAR Lamps, Bulbs