LM27951 Datasheet and Specifications PDF

The LM27951 is a White LED Adaptive 1.5X/1X Switched Capacitor Current Driver.

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Part NumberLM27951 Datasheet
ManufacturerNational Semiconductor
Overview 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 mat. 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.
Part NumberLM27951 Datasheet
Descriptionwhite-LED Driver
ManufacturerTexas Instruments
Overview 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 brightn.
*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 Small Solution Size - No Inductor
* Fixed 750-kHz Switc.