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AL3066 - FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER

General Description

The AL3066 is a high efficiency 4-channel boost controller for WLED backlight applications.

It operates over a wide input voltage ranged from 4.5V to 33V.

Key Features

  • include cycle by cycle current limit, softstart, UVLO, programmable OVP, OTP, open/short LED protection, Schottky Diode Short and Open Protection, Inductor Short-Circuit Protection and VOUT Short protection. CH4 1 ISET 2 OVP 3 RT 4 CS 5 OUT 6 VCC 7 HVCC 8 The IC is available in SO-16 package. Features.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Description AL3066 FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER Pin Assignments The AL3066 is a high efficiency 4-channel boost controller for WLED backlight applications. It operates over a wide input voltage ranged from 4.5V to 33V. The current of the 4 channels is simply programmed from 20mA to 400mA with an external resistor. The current match between any channel is ±1.5% (typical). Its operating frequency can be adjusted from 0.1MHz to 1MHz. The AL3066 can support two dimming modes: direct PWM dimming, PWM to analog dimming. Robust protection features include cycle by cycle current limit, softstart, UVLO, programmable OVP, OTP, open/short LED protection, Schottky Diode Short and Open Protection, Inductor Short-Circuit Protection and VOUT Short protection.