AP2502中文资料led-drivers-for-displays-backlights数据手册Diodes规格书

描述 Description

The AP2502 is a 4-channel independent linear current sink with low dropout voltage and perfect match between each channel. Each channel can provide 20mA continuous constant current. In application, there is only one 0.1μF ceramic capacitor required, and there is no any EMI and switching noise issue. It is perfect choice for hand-hold portable system especially based on Li-ion/Polymer battery powered display module.

The brightness can be control°C and/or adjustable via simple PWM signal applied to EN pin

应用 Application

Mobile Phone, Smart Phone, PDA MP3, MP4, PMP Small Size Backlight Module
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\t\t\t\tProduct Specifications

简介

AP2502属于集成电路（IC）的LED驱动器。由制造生产的AP2502LED 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。