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HV9919B

Part Number	HV9919B
Manufacturer	Microchip
Description	High Brightness LED Driver
Published	Jan 3, 2017
Detailed Description	HV9919B Hysteretic, Buck, High Brightness LED Driver with High-Side Current Sensing Features • Hysteretic control with...
Datasheet	HV9919B PDF File

Overview

HV9919B Hysteretic, Buck, High Brightness LED Driver with High-Side Current Sensing Features • Hysteretic control with high-side current sensing • Wide input-voltage range: 4.
5 to 40V • >90% Efficiency • Typical ±5% LED current accuracy • Up to 2.
0MHz switching frequency • Adjustable constant LED current • Analog or PWM control signal for PWM dimming • Over-temperature protection • -40ºC to +125ºC operating temperature range Applications • Low-voltage industrial and architectural lighting • General purpose constant current source • Signage and decorative LED lighting • Indicator and emergency lighting Description HV9919B is a Pulse-Width Modulation (PWM) controller IC designed to drive hi...

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