HV9910B Description
The HV9910B is an open loop, current mode, control LED driver IC. The HV9910B can be programmed to operate in either a constant frequency or constant off-time mode. It includes an 8.0 - 450V linear regulator which allows it to work from a wide range of input voltages without the need for an external low voltage supply.
HV9910B Key Features
- Switch mode controller for single switch LED drivers
- Enhanced drop-in replacement to the HV9910
- Open loop peak current controller
- Internal 8.0 to 450V linear regulator
- Constant frequency or constant off-time operation
- Linear and PWM dimming capability
- Requires few external ponents for operation
- 450V linear regulator which allows it to work from a wide range of input voltages without the need for an external low v
- 100% and a frequency of up to a few kilohertz. It also includes a 0
- 250mV linear dimming input which can be used for linear dimming of the LED current. The HV9910B is ideally suited for bu