Microchip Technology HV9803B
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 circuit cancels the effect of both the input offset voltage and the propagation delay in the current sense comparator.| Part No. | HV9803B |
|---|---|
| Datasheet | HV9803B Download |
| Manufacturer |  Microchip Technology |
| Description | LED Driver IC |
| Buy | Stock & Price |
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 can be powered from a 7V to 16V supply. The IC features fast PWM dimming response. The linear dimming input LD can accept a reference voltage from 0V to 3V.
