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AT9917 Data Sheet

Automotive LED Driver

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AT9917

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 Refer.

AT9917

Download AT9917 Datasheet

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 drivers in a Constant Current mode. The controller .




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