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LP8556 Datasheet High-efficiency Led Backlight Driver

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & munity Reference Design LP8556 SNVS871M – JULY 2012 – REVISED JUNE 2020 LP8556 High-Efficiency LED Backlight Driver For Tablets.

General Description

The LP8556 device is a white-LED driver featuring an asynchronous boost converter and six high precision current sinks that can be controlled by a PWM signal or an I2C master.

The boost converter uses adaptive output voltage control for setting the optimal LED driver voltages as low as 7 V and as high as 43 V.

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Key Features

  • 1 High-efficiency DC/DC boost converter with integrated 0.19-Ω power MOSFET and three switching frequency options: 312 kHz, 625 kHz, and 1250 kHz.
  • 2.7-V to 36-V Boost switch input voltage range supports multi-cell Li-Ion batteries (2.7-V to 20-V VDD input range).
  • 7-V to 43-V Boost switch output voltage range supports as few as 3 WLEDs in series per channel and as many as 12.
  • Configurable channel count (1 to 6).
  • Up to 50 mA per channel.
  • PWM an.

More Datasheets from Texas Instruments

Part Number Description
LP8550 High-Efficiency LED Backlight Driver
LP8551 High-Efficiency LED Backlight Driver
LP8552 High-Efficiency LED Backlight Driver
LP8553 High-Efficiency LED Backlight Driver
LP8555 High-Efficiency LED Backlight Driver
LP8557 High-Efficiency LED Backlight Driver
LP85571 High-Efficiency LED Backlight Driver
LP8501 Multi-Purpose 9-Output LED Driver
LP8543 SMBus/I2C Controlled WLED Driver
LP8545 High-Efficiency LED Backlight Driver

LP8556 Distributor