AL8807BMP-13集成电路（IC）的LED驱动器规格书PDF中文资料

AL8807BMP-13属于集成电路（IC）的LED驱动器。由美台半导体制造生产的AL8807BMP-13LED 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。

描述 Description

The AL8807B is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to 9 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 6V to 36V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8807B switches at frequency up to 1MHz with controlled rise and fall times to reduce EMI. This allows the use of small size external components, hence minimizing the PCB area needed.

Maximum output current of AL8807B is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying a PWM signal at the CTRL input pin. An input voltage of 0.4V or lower at CTRL switches off the output MOSFET simplifying PWM dimming.

特性 Features

● LED driving current up to 1.3A

● Better than 5 accuracy

● High efficiency up to 96

● Optimally controlled switching speeds

● Operating input voltage from 6V to 36V

● PWM input for dimming control

● Open-Circuit LED protection

● LED Chain Short Circuited

● Over-Temperature Protection

● MSOP-8EP Available in “Green” Molding Compound (No Br,

Sb) with lead Free Finish/ RoHS Compliant

▪ Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

▪ Halogen and Antimony Free. “Green” Device (Note 3)

Applications

● MR16 lamps

● General illumination lamps

● 12V powered LED Lamps

● 24V powered LED Lamps