JW1851
Dual Color LED Regulator
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DESCRIPTION
JW
®
1851 is a dual color LED regulator, which is
very simple to use in light-color dimming system.
The warm color or cold color LED current is
determined by external resistors. It supports
applications with high input voltage up to
500VDC.
Specially designed current sensing techniques
help to realize the color dimming function, and the
dimming curve is easy to be defined according to
customer requirements.
JW1851 provides over temperature protection
function to prevent device damaging. IC reduces
OUT1 current When temperature inside chip
exceeds 150 , which helps the chip cooling.
Company’s Logo is Protected, “JW” and “JOULWATT” are Registered
Trademarks of JoulWatt technology Inc.
FEATURES
Supports dual color LED strings
Ultra-low quiescent current
500V MOS built-in
Low BOM cost with only 2 SMD resistors
Over temperature protection.
No EMI issues.
SOT89-3 package
APPLICATIONS
Dual-Color Bulb lamp, Light-Color Dimming
TYPICAL APPLICATION
JW1851 Rev.0.81
℃
LED1
Warm
LED2
Cold
JoulWatt Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.
®
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