Hysteretic, Buck, High Brightness LED Driver with High-Side Current Sensing

文件：352.58 Kbytes 页数：13 Pages

Microchip

微芯科技

Hysteretic, Buck, High Brightness LED Driver with High-Side Current Sensing

文件：352.58 Kbytes 页数：13 Pages

Microchip

微芯科技

Hysteretic, Buck, High Brightness LED Driver w/ High-Side Current Sensing

The HV9919B is a PWM controller IC designed to drive high brightness LEDs using a buck topology. It operates from an input voltage of 4.5 to 40VDC and employs hysteretic controlwith a high-side current sense resistor to set the constant output current.The operating frequency range can be set by sele • Hysteretic control with high-side current sensing\n• Wide input voltage range: 4.5 to 40V\n• >90% Efficiency\n• Typical ±5% LED current accuracy\n• Up to 2.0MHz switching frequency\n• Adjustable constant LED current\n• Analog or PWM control signal for PWM dimming\n• Over-temperature protec;

Microchip

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Package：8-WDFN 裸露焊盘；包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 类别：集成电路（IC） LED 驱动器 描述：IC LED DRIVER CTRLR PWM 8DFN

Microchip

微芯科技