ADD5211ACPZ-R7集成电路（IC）的LED驱动器规格书PDF中文资料

ADD5211ACPZ-R7属于集成电路（IC）的LED驱动器。由亚德诺半导体技术有限公司制造生产的ADD5211ACPZ-R7LED 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。

GENERAL DESCRIPTION

The ADD5211 is a 4 channel, white LED driver for backlight applications based on high efficiency, current mode, step-up converter technology. The boost controller drives an external MOSFET switch for step-up regulation from an input voltage of 4.5 V to 40 V and a pin adjustable operating frequency between 200 kHz and 1.2 MHz. An adjustable UVLO function is implemented to reduce input current during power-off.

FEATURES

White LED driver based on an inductive boost controller

Wide input voltage range: 4.5 V to 40 V

Adaptive output voltage to minimize power dissipation

Adjustable operating frequency: 200 kHz to 1.2 MHz

Programmable UVLO

Programmable soft start time for boost converter

Programmable external MOSFET switching rising/falling time

Drives up to 4 LED current sinks with internal MOSFETs

Brightness control with PWM input

Adjustable LED current: 40 mA up to 200 mA

Headroom control to maximize efficiency

LED dimming frequency: up to 25 kHz

1000:1 PWM dimming at 300 Hz

Open drain fault indicator

LED open and LED short fault protection

Thermal shutdown

Undervoltage lockout

24-lead, 4 mm × 4 mm LFCSP