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NCP5021 - High Voltage White LED Driver

Description

This pin carries the I2C clock to control the DC/DC converter and to set up the output current and the photo sensor.

The SCL clock is associated with the SDA signal.

This pin carries the data provided by the I2C protocol.

Features

  • 2.7 to 5.5 V Input Voltage Range.
  • 90% Peak efficiency with 4.7 mH / 150 mW Inductor.
  • Gradual Dimming Built.
  • in (Automatic Fade In/Fade Out Effect).
  • Integrated Ambient Light Sensing Automatically Adjusts the LCD Backlight Contrast.
  • Built.
  • in Zero Current Load Leakage under Idle Mode.
  • Support the Full I2C Protocol with Address Extension.
  • Tight 1% I.
  • LED Tolerance.
  • Ultra Thin 0.5 mm QFN16 Package.

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Datasheet preview – NCP5021

Datasheet Details

Part number NCP5021
Manufacturer onsemi
File Size 292.77 KB
Description High Voltage White LED Driver
Datasheet download datasheet NCP5021 Datasheet
Additional preview pages of the NCP5021 datasheet.

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Full PDF Text Transcription

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NCP5021 High Voltage White LED Driver with Ambient Light Sensing The NCP5021 product is a single output boost LED driver capable of driving up to 8 LEDs in series for portable backlight applications. The built−in DC/DC converter is based on a high efficient PWM boost structure with 32 V output voltage span. It provides a peak 90% efficiency together with a 1% I−LED current tolerance. Features • 2.7 to 5.5 V Input Voltage Range • 90% Peak efficiency with 4.7 mH / 150 mW Inductor • Gradual Dimming Built−in (Automatic Fade In/Fade Out Effect) • Integrated Ambient Light Sensing Automatically Adjusts the LCD Backlight Contrast • Built−in Zero Current Load Leakage under Idle Mode • Support the Full I2C Protocol with Address Extension • Tight 1% I−LED Tolerance • Ultra Thin 0.
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