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AL3065 - FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER

Description

The AL3065 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.

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. The IC is available in SO-16 package. CH4 1 ISET 2 OVP 3 RT 4 EN 5 CS 6 OUT 7 VCC 8 (Top View) 16 CH3 15 GND 14 CH2 13 CH1 12 DIM 11 COMP 10 ADIM 9 VIN Features SO-16.
  • Input Voltage Range: 4.5V to 33V.
  • Drivers up to 4 Strings in Parallel, 250mA per String, 400mA Pulse.

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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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NOT RECOMMENDED FOR NEW DESIGN CONTACT US AL3065 FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER Description Pin Assignments The AL3065 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 AL3065 can support three dimming modes: direct PWM dimming, PWM to analog dimming and DC to analog dimming.
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