AL3066中文资料medium-voltage-dc-dc-led-drivers数据手册Diodes规格书

描述 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.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, soft-start, 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.

特性 Features

Input Voltage Range: 4.5V to 33V
Drivers up to 4 Strings in Parallel, 250mA per String, 400mA Pulse Current
±3% Current Precision
Low Ripple for Low BOM Cost
4KV HBM ESD Class
High Voltage Pins CS and OVP for Safety Test
Support Direct PWM Dimming, PWM to Analog Dimming 
Minimum PWM Dimming Duty Cycle can be 1/10,000 at 100Hz Dimming Frequency
LED Open/Short Protection
Schottky Diode/Inductor Short-Circuit Protection
Built-in OCP, OVP, OTP, UVLO, VOUT Short/Schottky Diode Open Protection

应用 Application

LCD Monitor 
LCD Display Module
LCD TV

简介

AL3066属于集成电路（IC）的LED驱动器。由制造生产的AL3066LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。