HV9964 Description
The HV9964 is a current mode control LED driver IC designed to control single switch PWM converters (boost or SEPIC) in a constant frequency mode. The controller uses a peak current-mode control scheme (with programmable slope pensation) and includes an internal transconductance amplifier to accurately control the output current over all line and load conditions. The IC also provides a load switch gate drive output,...
HV9964 Key Features
- Switch-mode controller for single switch converters
- Current loop closed with sub-microsecond PWM dimming pulses supports PWM dimming >20kHz
- High PWM dimming ratio (>10,000:1)
- Internal 40V linear regulator
- Internal ±2% voltage reference
- Programmable constant frequency operation
- Programmable slope pensation
- Programmable soft start
- 10V, +0.25A/-0.5A MOSFET gate drivers
- Hiccup mode protection for both short circuit and open circuit conditions