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

National Semiconductor

Description

November 2005 www.DataSheet4U.com LM27951 White LED Adaptive 1.5X/1X Switched Capacitor Current Driver LM27951 White LED Adaptive 1.5X/1X Switched C.
The LM27951 is a switched capacitor white-LED driver capable of driving up to 4 LEDs with 30mA through each LED.

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Datasheet Specifications

Part number: LM27951
Manufacturer: National Semiconductor
File Size: 629.14 KB
Datasheet: LM27951_NationalSemiconductor.pdf
Description: White LED Adaptive 1.5X/1X Switched Capacitor Current Driver

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

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LM27951 White LED Adaptive 1.5X Switched Capacitor Current Driver National Semiconductor

National Semiconductor LM27951-like datasheet