HV9912
Features
- Switch-mode Controller for Single-switch Drivers:
- Buck
- Boost
- Buck-boost
- SEPIC
- Works with High-side Current Sensors
- Closed-loop Control of Output Current
- High Pulse-Width Modulation (PWM) Dimming
Ratio
- Internal 90V 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 pensation
- Linear and PWM Dimming
- +0.2A/- 0.4A Gate Driver
- Hiccup Mode Protection for both Short-circuit and
Open-circuit Conditions
- Output Overvoltage Protection
- Synchronization Capability
- Pin patible with HV9911
Applications
- RGB Backlight Applications
- General LED Lighting Applications
- Battery-powered LED Lamps
General Description
HV9912 is an LED driver IC designed to control single-switch PWM converters (buck,...
