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LM3697 Datasheet High-efficiency Three-string White Led Driver

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & Community LM3697 SNOSCS2D – NOVEMBER 2013 – REVISED MARCH 2019 LM3697 High-efficiency three-string white LED driver.

General Description

The LM3697 11-bit LED driver provides highperformance backlight dimming for 1, 2, or 3 series LED strings while delivering up to 90% efficiency.

The boost converter with integrated 1-A, 40-V MOSFET automatically adjusts to LED forward voltage to minimize headroom voltage and effectively improve LED efficiency.

The LM3697 is a high-efficiency three-string power source for backlight or keypad LEDs in smart-phone handsets.

Key Features

  • 1 Drives three parallel high-voltage led strings for display and keypad lighting.
  • High-voltage strings capable of up to 40-V output voltage and up to 90% efficiency.
  • Up to 30 mA per current sink.
  • 11-Bit configurable dimming resolution.
  • PWM input for content adjustable brightness control (CABC).
  • Fully configurable LED grouping and control.
  • Integrated 1-A/40-V MOSFET.
  • Adaptive boost output to LED voltages.
  • Selectable.

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LM3697 Distributor