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.
Features
- 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 Input undervoltage protection Enable & PWM dimming Trimmed reference (±3% accurate) AEC-Q100 comp.
AT9932 Datasheet
