Description
The HV9911 is an LED driver IC designed to control single-switch PWM converters (buck, boost, buck-boost and SEPIC) in a Constant Frequency or Constant Off-time mode.
Features
- Switch-mode Controller for Single-switch Drivers: - Buck - Boost - Buck-boost - SEPIC.
- Works with High-side Current Sensing.
- Closed-loop Control of Output Current.
- High Pulse-Width Modulation (PWM) Dimming
Ratio.
- Internal 250V Linear Regulator (can be extended
using external Zener Diodes).
- Internal 2% Voltage Reference (0°C < TA < 85°C).
- Constant Frequency or Constant Off-time
Operation.
- Programmable Slope Compensation.
HV9911 Datasheet
