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ver.2010/09/03 constant current type white led driver for backlight NJW4610 current sink ignd current setting iset tsd led open/short protection gnd vdd fbc flt pwm en led1 led2 uvlo vled led1 led2 u . d . general description the NJW4610 is a high effici ency multiple strings white led driver for back light. this device is composed with 2 channel constant current drivers and can drive up to 16pcs. led. each constant current driver is able to supply maximum of 120ma per channel, and the driver interval is performed by high precision current control of 2% typ. features ? constant current dr iver : 10ma ~ 120ma ? led current control : 2% ( typ. ) ? led driver rating voltage : 40v ? operating voltage : 4.5v ~ 5.5v ? led open / short protection ? fault signal output ? luminance control with pwm ? under voltage lock out circuit ( uvlo ) ? thermal shutdown protection ? package : tvsp8 package outline NJW4610rb1 block diagram
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