AP3036B中文资料led-drivers-for-displays-backlights数据手册Diodes规格书

描述 Description

The AP3036B is an inductor-based DC/DC converter designed to drive up to eight white LEDs in series for backlight. Only one feedback resistor is needed to control the LED current and obtain required brightness.

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\tA constant frequency 1.0MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall inductor and 0.22μF output capacitor for a typical application is sufficient. Additionally, the Schottky diode in boost circuit is integrated on this chip. The AP3036B also provides a disable pin to ease its use for different systems.

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\tThe output over-voltage protection is implemented in AP3036B. When any LED is broken or in other abnormal conditions, the output voltage will be clamped.

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\tThe AP3036B is available in standard SOT26 package.

应用 Application

Cellular Phones
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\t\tDigital Cameras
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\t\tLCD Modules
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\t\tGPS Receivers
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\t\tPDAs, Handheld Computers


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\t\t\t\tProduct Specifications

简介

AP3036B属于集成电路（IC）的LED驱动器。由制造生产的AP3036BLED 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。