Supertex inc.
Automotive Boost-Buck LED Lamp Driver IC
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 compliant
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AT9932
General 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 ...