A8510集成电路（IC）的LED驱动器规格书PDF中文资料

A8510属于集成电路（IC）的LED驱动器。由Allegro MicroSystems制造生产的A8510LED 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 A8510 is a multi-output white LED driver for LCD backlighting. It integrates a current-mode boost converter with internal power switch and 8 current sinks. The boost converter can drive up to 96 LEDs with 12 LEDs at 40 mA per string. The LED sinks can also be paralleled together to achieve even higher LED currents, up to 320 mA. The A8510 can operate from a single power supply, from 5 to 40 V.

Features and Benefits

• Integrated 2 MHz capable boost converter with 60 V DMOS switch with OVP protection

• Sync function to synchronize boost converter switching frequencies up to 2.3 MHz

• LED current up to 40 mA per LED channel into 8 channels

• Drives up to 12 series LEDs in 8 parallel strings (Vf = 3.5 V, If = 40 mA), VIN = 8 V, switching frequency of 1 MHz

• Single EN/PWM pin interface for PWM dimming and enable functions

• APWM pin for fine-tuning color adjustment and/or maximizing contrast ratio

• Integrated driver for optional external PMOS input disconnect switch

• Typical LED accuracy of 0.7 and 0.8 for LED-to-LED matching

• Internal bias supply for single-supply operation from 5 to 40 V

• Extensive protection features

Applications

• Industrial LCD displays

• Backlighting LCD displays

• Infotainment displays