HV9961 Description
The HV9961 is an average current mode control LED driver IC operating in a constant off-time mode. Unlike HV9910B, this control IC does not produce a peak-to-average error, and therefore greatly improves accuracy, line and load regulation of the LED current without any need for loop pensation or high-side current sensing. The output LED current accuracy is ±3%.
HV9961 Key Features
- Fast average current control Programmable constant off-time switching Linear dimming input PWM dimming input Output shor
- 450V supply. A PWM dimming input is provided that accepts an external control TTL patible signal. The output current can
- 1.5V dimming input. HV9961 is pin-to-pin patible with HV9910B and it can be used as a drop-in replacement for many