AT9932
Description
The AT9932 is an advanced fixed-frequency PWM controller IC designed to control an LED lamp driver using a boost-buck topology that can step the input voltage up or down automatically.
Key Features
- Constant Output Current
- Steps Output Voltage Up or Down
- Very Low Susceptibility to Input Voltage
- Frequency Jitter
- Externally Programmable Fixed Switching
- Temperature Foldback with External NTC
- Internal 40V Voltage Regulator
- +/–1A MOSFET Gate Driver
- Short LED Protection
- Open LED Protection
Applications
- Automobile Lighting
