WS9931 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – LED Ripple Current Elimination Controller

WS9931 Product Description
Features
 Eliminate ripple current for single stage LED driver
 Without external COMP capacitor
 Built-in soft-start
 Max Output current is up to 300mA
 Internal intelligent over temperature protection
 Operating temperature range from -40℃to135℃
Applications
 LED Tube Lights
 LED Bulb Lights
LED Ripple Current Elimination Controller
Description
The WS9931 is an adaptive linear current regulator to
eliminate LED low frequency ripple current. It adopts an
adaptive control solution without additional circuit design.
It can realize the function of LED light non-filtering with
very few external components, so the system cost and
size are minimized. The WS9931 is mainly applied in bulb
lights and tube lights, especially suitable for COB (chip on
board) mode.
The operating temperature range of the WS9931 is
from -40℃to135℃.
The WS9931 is available in ESOP8 Package.
Typical Application Circuit
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