AL1794中文资料Quad-Channel Current-Ratio-Optimized LED Driver with Analog and PWM Dimming数据手册Diodes规格书

描述 Description

The AL1794, a quad-channel LED driver with analog and PWM dimming control, is targeted for Tunable White/Color Smart Lighting application. It serves as the LED driving element along with AC-DC Power Conversion Block and Intelligent MCU as emerging smart light bulb configuration. The key merits attribute to cost-effectiveness, dimming performance, low standby power, ease of system implementation, and great scalability.

特性 Features

Input Voltage Range: 6.5V to 30V, 1/2/3/4-channel LED drivers: independent Analog or PWM dimming control for each channel
Reference Current: Adjustable by an external reference resistor
Ratio-optimized currents for 4 independent LED channels (AL1794 only): Suitable for Tunable White and Tunable Color
Low Standby Power: With EN pin
E-flicker free PWM dimming: Support 4KHz down to sub-1%
Internal Protections: Under Voltage Lockout (UVLO)
LED string open/short protection
Over temperature protection (OTP): Thermal fold-back and Thermal shut down
Fault Reporting: UVLO, OTP, Open, and Short
LED Power Good Reporting
Low system BOM cost
Ambient Temperature Range -40°C to +105°C

应用 Application

Tunable Color Smart LED Light Bulbs
Tunable White Smart LED Light Bulbs
Dimmable Smart LED Light Bulbs
LED Power Supply
Smart Lighting
DC-DC
LED Drivers

简介

AL1794属于开发板套件编程器的评估板-LED驱动器。由制造生产的AL1794评估板 - LED 驱动器LED 驱动器评估板是带有元器件的电路板，用于提供特定电路或器件的工作实例。该系列评估板提供一个 LED 驱动器实例，用于可调节闪烁、模拟亮度、背光、双极开关、升压转换器、亮度控制、相机闪光灯、可调光、恒流和 RGB 控制，以及更多其他应用。