A8510集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料

A8510屬于集成電路（IC）的LED驅(qū)動器。由Allegro MicroSystems制造生產(chǎn)的A8510LED 驅(qū)動器器件屬于 LED 驅(qū)動器電源管理集成電路 (PMIC) 系列，可通過標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通常可對器件工作點進(jìn)行外部控制，可在照明應(yīng)用中用于實現(xiàn)調(diào)光功能。

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