AP3033中文资料led-drivers-for-displays-backlights数据手册Diodes规格书

描述 Description

The AP3033 is an inductor-based DC/DC boost converter designed to drive °C arrays. 1.3A switching current allows AP3033 to be used in different 7' to 10' LCD panel backlights (3S8P °C arrays typically). A constant frequency 1MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall 10μH inductor and 10μF output capacitor for the typical application is sufficient. The over output voltage protection is equipped in AP3033, which protects the IC under open load condition. The AP3033 includes UVLO, soft-start, standby mode, current limit and OTSD to protect the circuit.

特性 Features

Up to 92% Efficiency (VIN=9V, IOUT=160mA)
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\t\tUp to 88% Efficiency (VIN=5V, IOUT=160mA)
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\t\tFast 1MHz Switching Frequency
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\t\tWide Input Voltage Range: 3V to 16V
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\t\tLow 200mV Feedback Voltage
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\t\tOutput Over Voltage Protection
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\t\tCycle by Cycle Current Limit: 1.3A
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\t\tHigh Frequency PWM Dimming
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\t\tBuilt-in Soft-start
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\t\tBuilt-in Thermal Shutdown Function
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\t\tUnder Voltage Lockout

应用 Application

7' to 10' LCD Panels
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\t\tDigital Photo Frame
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\t\tGPS Receiver
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\t\tNetbook
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\t\tPDVD

简介

AP3033属于集成电路（IC）的LED驱动器。由制造生产的AP3033LED 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。