HV9861A Datasheet (PDF) Download
Microchip Technology
HV9861A

Overview

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.

  • 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