21-Watt Universal AC LED Driver Demoboard with Accurate Average-Mode Constant Current Control
21-Watt Universal AC LED Driver Demoboard with Accurate Average-Mode Constant Current Control (HV9961DB1)
The HV9961 demoboard is a high-brightness LED driver employing average-mode constant current control scheme. The power conversion stage of the HV9961DB1 consists of a diode bridge rectifier followed by a buck converter operating with fixed off-time of 20μs. The HV9961DB1 LED driver features tight regulation of the LED current within a few milliamps over the entire range of the input AC line and the output LED string voltage.
Please download the user guide for more information.