IC LZC8650

The LZC8620 is a single-power stage, isolated and primary side offline LED lighting regulator which achieves high power factor. The proprietary real-current control method can control the LED current accurately from the primary side information. Support flexible current compensation setting in the appointed temperature with a NTC resistor.

It can significantly simplify the LED lighting system design by eliminating the secondary side feedback components and the opto-coupler. The LZC8620 integrates active power factor correction and works in Quasi Resonance mode (QRM) in order to reduce the MOSFET switching losses.
The external programmable line voltage compensation provides a more precise output current throughout the universal AC input voltage range. The leading-edge blanking circuit on the CS/FB input removes the signal glitch and results in reduced external components and system cost.
Features:
 Single stage PFC
 Primary side regulation without Secondary Feedback
 Quasi Resonance (QR) mode with Fly-back topology
 Real-Current control to meet accurate output current
 Flexible current compensation setting in the appointed temperature
 Very less components
 Programmable input AC voltage compensation
 Leading Edge Blanking on CS/FB pin
 Protection Features
 Building in hysteresis OTP
 VDD over voltage protection
 Cycle by cycle current limiting on CS pin
 Output short to GND protection
 Output programmable over voltage protection
 FB and CS pins default
Applications:
Offline AC/DC Flyback power converters for LED lighting

 

ic-lzc8650

INTEGRATED CIRCUIT

Part Number:
IC LZC8650
Number of Poles / Contact:
8 pins
Application:
Offline AC/DC Flyback power converters for LED lighting
Brand / Make:
LZ