LED Driver
HV9861A
LED Driver with Average-Mode Constant Current Control
Features
• Fast average current control • Programmable co...
Description
HV9861A
LED Driver with Average-Mode Constant Current Control
Features
Fast average current control Programmable constant off-time switching PWM / linear dimming input Output short circuit protection with skip mode Ambient operating temperature -40°C to +125°C Pin-compatible with the HV9910B and HV9961
Applications
DC/DC or AC/DC LED driver applications LED back-light driver for LCD displays General purpose constant current source LED signage and displays Architectural and decorative LED lighting LED street lighting
Description
HV9861A is a patented, average-mode, constant-current control, LED driver IC operating in a constant offtime mode. Unlike the HV9910B, this control IC does not produce a peak-to-average error, which therefore greatly improves the accuracy, line and load regulation of the LED current without any need for loop compensation or high-side current sensing. The output LED current accuracy is ±3%.
The IC is equipped w...
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