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WS3130

Applications
 LED lighting
 Down light
 Tube lamp
 PAR lamp
 Bulb

Features
Single stage PFC
Primary side regulation without Secondary Feedback
Quasi Resonance (QR) mode with Confidential
Fly-back topology
Real-Current control to meet accurate output current
Very less components
Programmable input AV 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
Secondary peak current protection on CS pin
Output short to GND protection
Output programmable over voltage protection
FB and CS pins default protection

 

Structure Type

Part NO.

MOS

Package

App. Watt

OVP

PDF

176-264Vac

90-264Vac

Isolation

PF0.9

WS3130

1A/650V

SOP-8

100W

100W

External Set

WS3130.pdf 

 

General Description
The WS3130 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.
It can significantly simplify the LED lighting system design by eliminating the secondary side feedback
components and the opto-coupler.
The WS3130 integrates active power factor correction and works in Quasi Resonance mode (QRM) in order to
reduce the MOSFET switching losses.
With a building in 700V start-up MOSFET, IC can eliminate the power loss caused by start-up resistors to
provide a high efficiency solution for lighting applications.
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. The multi-protection features of WS3130
Greatly enhance the system reliability and safety.Features VDD and output over voltage protection; output
short circuit protection cycle-by-cycle current limit and secondary peak current protection on CS pin, VDD UVLO and auto-restart and over-temperature protection. The driver output voltage is clamped at 18V to protect the external power MOSFET.
WS3130 is offered in SOP-8 packages.

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Money Return

100% Guarentee

Return Policy

30 Days Service

24/7 Support

Call +86-755-8418 2951