AT9932
Overview
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. The IC provides fast output current transient response and very low susceptibility to input voltage transients.
- Constant Output Current
- Steps Output Voltage Up or Down
- Very Low Susceptibility to Input Voltage Transients
- Frequency Jitter
- Externally Programmable Fixed Switching Frequency
- Temperature Foldback with External NTC Resistor
- Internal 40V Voltage Regulator
- +/-1A MOSFET Gate Driver
- Short LED Protection
- Open LED Protection
