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LM3530 - High-Efficiency White-LED Driver

Datasheet Summary

Description

The LM3530 current mode boost converter supplies the power and controls the current in up to 11 series white LEDs.

The 839-mA current limit and 2.7-V to 5.5-V input voltage range make the device a versatile backlight power source ideal for operation in portable applications.

Features

  • 1 Drives up to 11 LEDs in series.
  • 1000:1 Dimming Ratio.
  • 90% Efficient.
  • Programmable Dual Ambient Light Sensor Inputs with Internal ALS Voltage Setting Resistors.
  • I2C Programmable Logarithmic or Linear Brightness Control.
  • External PWM Input for Simple Brightness Adjustment.
  • True Shutdown Isolation for LEDs and Ambient Light Sensors.
  • Internal Soft-Start Limits Inrush Current.
  • Wide 2.7-V to 5.5-V Input Voltage Range.

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Datasheet preview – LM3530

Datasheet Details

Part number LM3530
Manufacturer Texas Instruments
File Size 7.35 MB
Description High-Efficiency White-LED Driver
Datasheet download datasheet LM3530 Datasheet
Additional preview pages of the LM3530 datasheet.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3530 SNVS606L – JUNE 2009 – REVISED DECEMBER 2014 LM3530 High-Efficiency White-LED Driver with Programmable Ambient Light Sensing Capability and I2C-Compatible Interface 1 Features •1 Drives up to 11 LEDs in series • 1000:1 Dimming Ratio • 90% Efficient • Programmable Dual Ambient Light Sensor Inputs with Internal ALS Voltage Setting Resistors • I2C Programmable Logarithmic or Linear Brightness Control • External PWM Input for Simple Brightness Adjustment • True Shutdown Isolation for LEDs and Ambient Light Sensors • Internal Soft-Start Limits Inrush Current • Wide 2.7-V to 5.
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