WS3130 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – High Performance LED Driver

WS3130 Product Description
WS3130 High Performance LED Driver
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
Applications
 LED lighting
 Down light
 Tube lamp
 PAR lamp
 Bulb
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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