HV9803B LED Driver IC with Average-Mode Constant Current Control Features • Fast Average Current Control • Correction for Propagation Delay and Offset Voltage • Fixed Off-time Switching Mode • Linear Dimming Input • PWM Dimming Input • Output Short-circuit Protection with Programmable Skip Mode • Input Undervoltage Shutdown Applications • Backlighting of LCD Panels • General Lighting General Description The HV9803B is an open-loop, Average-mode current control LED driver IC operating in a constant Off-time mode.
The IC features ±2% current accuracy and tight line and load regulation of the LED current without any need for loop compensation or high-side current sensing.
Its auto-zero circui...

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