AT9917 Datasheet (Supertex) - Automotive LED Driver

AT9917, Automotive LED Driver

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 uses a peak current-mode control scheme (with programmable slope compensation) and includes an internal transconductance ampliﬁer to contr

AT9917 Features

* Switch mode controller for boost, SEPIC & 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 PW