Datasheet4U Logo Datasheet4U.com

LM27951 - white-LED Driver

Description

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.

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 Small Solution Size - No Inductor.
  • Fixed 750-kHz Switching Frequency.
  • < 1-µA Shutdown Current 2.

📥 Download Datasheet

Datasheet preview – LM27951

Datasheet Details

Part number LM27951
Manufacturer Texas Instruments
File Size 897.24 KB
Description white-LED Driver
Datasheet download datasheet LM27951 Datasheet
Additional preview pages of the LM27951 datasheet.

📁 Similar Datasheet

  • LM27951 - White LED Adaptive 1.5X/1X Switched Capacitor Current Driver (National Semiconductor)
  • LM27952 - White LED Adaptive 1.5X/1X Switched Capacitor Current Driver (National Semiconductor)
  • LM27953 - White LED Driver (National Semiconductor)
  • LM2791 - Current Regulated Switched Capacitor LED Driver (National Semiconductor)
  • LM2792 - Current Regulated Switched Capacitor LED Driver (National Semiconductor)
  • LM2793 - Low Noise White LED Driver (National Semiconductor)
  • LM2794 - Current Regulated Switched Capacitor LED Driver (National Semiconductor)
  • LM2796 - Dual-Display White LED Driver (National Semiconductor)
  • LM27961 - Dual-Display White (National Semiconductor)
  • LM27964 - White LED Driver System (National Semiconductor)
Other Datasheets by Texas Instruments
  • LM2795 - Current Regulated Switched Capacitor LED Supply
  • LM27952 - white-LED Driver
  • LM2794 - Current Regulated Switched Capacitor LED Supply
  • LM2796 - Dual-Display White LED Driver
  • LM27964 - White LED Driver
  • LM27965 - Dual Display White LED Driver
  • LM27966 - White LED Driver
  • LM2797 - Voltage Converter

Full PDF Text Transcription

Click to expand full text
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM27951 SNVS416C – NOVEMBER 2005 – REVISED FEBRUARY 2016 LM27951 White LED Adaptive 1.5×/1× Switched-Capacitor Current Driver 1 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.
Published: |