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LM27951 Datasheet - National Semiconductor

LM27951 - White LED Adaptive 1.5X/1X Switched Capacitor Current Driver

The LM27951 is a switched capacitor white-LED driver capable of driving up to 4 LEDs with 30mA through each LED.

Its 4 tightly regulated current sources ensure excellent LED current and brightness matching.

LED drive current is programmed by an external sense resistor.

The LM27951 operates over an i

LM27951 Features

* n n n n n n n n n n Drives up to 4 LEDs with up to 30mA each Regulated current sources with 0.2%(typ.) matching 3/2x, 1x Gain transition based on LED VF Peak Efficiency Over 85% Input Voltage Range: 3.0V to 5.5V PWM Brightness Control Very Small Solution Size - NO INDUCTOR Fixed 750kHz Switching Fre

LM27951_NationalSemiconductor.pdf

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Datasheet Details

Part number:

LM27951

Manufacturer:

National Semiconductor

File Size:

629.14 KB

Description:

White led adaptive 1.5x/1x switched capacitor current driver.

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