SE8322 50W以内高PF隔离和非隔离LED电源IC

SE8322

Single Stage Primary Side Regulation Flyback  Controller with Active PFC for LED Lighting

Features
Excellent Compatibility and Performance
Primary Side Regulation (PSR)
Constant Current output ( /- 2%)
Universal Input Voltage Range (85V – 265V)
Energy Efficient
Boundary Conduction Mode (BCM) with
valley switching reduces EMI and enhances
efficiency
Power Factor Correction (PF > 0.95)
High Efficiency (> 87%)
Low Startup Current: 1μA
Low Quiescent Current: 1.1mA
Advanced Protection and Safety Features
Open LED Protection
Short LED Protection
Cycle by Cycle Current Limit
VCC Over Voltage Protection (OVP)
VCC Under Voltage Lockout (UVLO)
Over Temperature Protection
Package
SOP-8 Package Available
Description
The offline primary side regulation LED lighting
controller, SE8322, provides accurate output
current, high power factor and low total harmonic
distortion. High efficiency is achieved by low
operating current and valley turn-on of the primary
MOSFET. Constant on-time control is utilized for a
better PFC performance.
The multiple protections of SE8322, including
open LED protection, short LED protection, cycle
by cycle current limit, VCC UVLO and over
temperature protection, can greatly enhance the
system reliabilityand safety. Current limit threshold
is adjusted automatically in a short LED condition
in order that the output current is minimized.
Applications
Isolated LED Driver
LED lighting