LM27951 Datasheet (Texas Instruments)

LM27951, white-LED Driver

The LM27951 is a switched capacitor white-LED driver capable of driving up to four LEDs with 30 mA through each LED.

Its four tightly regulated current sources ensure excellent LED current and brightness matching.

LED drive current is programmed by an external sense resistor.

The LM27951 operates ov

LM27951 Features

* 1 Input Voltage Range: 2.8 V to 5.5 V

* Drives up to Four LEDs With up to 30 mA each

* Regulated Current Sources with 0.2% (Typical) Matching

* 3/2×, 1× Gain Transition Based on LED Vƒ

* Peak Efficiency Over 85%

* PWM Brightness Control

* Very