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SIC9866

High Precision PSR APFC Isolated LED Driver

Model

Isolated

PFC

Integrated Transistor

Pacakge

Application

PDF 

SIC9866

Y

 

MOSFET,700V/3.0A

SOP-8,DIP-7

12-18W

 

General Description
The SIC9866/SIC9867 are high precision primary-side regulation isolated flyback controller with single-stage Active PFC, specially designed for offline constant current LED lighting. The controller with on-chip PFC circuit operates in CCM (Critical Conduction Mode) to achieve high power factor and reduce the power MOSFET switching loss. The controller precisely control the LED current without secondary side sense and feedback circuit including opto-coupler. It uses source driver architecture and pending internal charging circuit for low primary side switching loss, ultra fast VDD start up and LED turn on.
The SIC9866/SIC9867 use compensation method to achieve excellent line regulation, and it still can be tuned
externally for flexibility.The controller also has outstanding load regulation for driving wide range of LED
numbers. 700V power MOSFET is integrated, which can significantly simplify the design of LED lighting system.
The SIC9866/SIC9867 offer rich protection functions to improve the system reliability, including LED short circuit protection, LED open circuit protection, VDD over voltage protection, VDD under voltage protection, ISEN resistor short circuit protection, ISEN resistor open circuit protection, cycle-by-cycle current limit and die over-temperature protection.All the protection features are auto-recovery.
The SIC9866/SIC9867 are available in SOP-8 & DIP-7 package.

Features
· Single-Stage Active PFC for High Power Factor and Low THD
. No Opto-Coupler Required
. ±3% LED Current Accuracy
. Critical Conduction Mode Operation
. High Resistance Feedback Resistor for Improved Efficiency
. Ultra-Low Operating Current
. ISEN Resistor Short and Open Circuit Protection
. Cycle-by-Cycle Current Limit
. Auto Recovery
. Primary Side Control Constant Current Operation
. Bulit-in 700V Power MOSFET
. Excellent Line and Load Regulation
. Gate Driver Structure for Improved Efficiency
. Ultra-Low Start up Current
. LED Short and Open Circuit Protection
. Transformer Saturation Protection
. VDD Over-voltage and Under-voltage Protection
. Over Temperature Protection

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Money Return

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Return Policy

30 Days Service

Solution & Support

Call +86-755-8418 2951