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AT9917 - Automotive LED Driver

Description

The AT9917 is an advanced fixed frequency PWM IC designed to control single-switch, Boost, Sepic and Buck LED drivers in a Constant Current mode.

Features

  • AEC-Q100 Automotive Reliability Qualified.
  • Switch Mode Controller for Boost, SEPIC and Buck Converters.
  • Closed-Loop Control of Output Current.
  • High PWM Dimming Ratio.
  • Internal 40V Linear Regulator.
  • Internal 3% Voltage Reference.
  • Constant Frequency Operation with Programmable Slope Compensation.
  • Linear and PWM Dimming.
  • Programmable Jitter to Reduce EMI.
  • +/.
  • 1A MOSFET Gate Driver.
  • Output Shor.

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Datasheet preview – AT9917

Datasheet Details

Part number AT9917
Manufacturer Microchip
File Size 686.23 KB
Description Automotive LED Driver
Datasheet download datasheet AT9917 Datasheet
Additional preview pages of the AT9917 datasheet.

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Full PDF Text Transcription

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AT9917 Automotive LED Driver IC with High Current Accuracy Features • AEC-Q100 Automotive Reliability Qualified • Switch Mode Controller for Boost, SEPIC and Buck Converters • Closed-Loop Control of Output Current • High PWM Dimming Ratio • Internal 40V Linear Regulator • Internal 3% Voltage Reference • Constant Frequency Operation with Programmable Slope Compensation • Linear and PWM Dimming • Programmable Jitter to Reduce EMI • +/–1A MOSFET Gate Driver • Output Short-Circuit Protection • Output Overvoltage Protection • Programmable Hiccup Timer • Soft Start • Temperature Foldback with External NTC Resistor Applications • Automotive LED Driver Applications General Description The AT9917 is an advanced fixed frequency PWM IC designed to control single-switch, Boost, Sepic and Buck LED d
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