HV9961
Features
- Fast Average Current Control
- Programmable Constant Off-time Switching
- Linear Dimming Input
- PWM Dimming Input
- Output Short-circuit Protection with Skip Mode
- - 40°C to +125°C Ambient Operating
Temperature
- Pin-patible with HV9910B
Applications
- DC/DC or AC/DC LED Driver Applications
- LED Backlight Driver for LCD Displays
- General Purpose Constant-current Source
- LED Signage and Displays
- Architectural and Decorative LED Lighting
- LED Street Lighting
General Description
The HV9961 is an Average-Current mode constant-current control LED driver IC operating in a constant Off-time mode. Unlike the HV9910B, this control IC does not produce a peak-to-average error. This greatly improves accuracy as well as the line and load regulations of the LED current without any need for loop pensation or high-side current sensing. Its output LED current accuracy is ±3%.
The IC is equipped with a current limit parator for Hiccup mode output short-circuit protection.
The HV9961...
