By ISSI, Integrated Silicon Solution Inc. 66
Integrated Silicon Solution, Inc. (ISSI) offers its IS32LT3175, a feature-rich AEC-Q100 (automotive electronics council) certified linear LED driver enabling reduced BOM count for low-cost and compact designs. The IS32LT3175 integrates a single-channel LED driver with a programmable 150 mA current source, push-button control, courtesy signal input, and integrated programmable fade-in / fade-out lighting control. The device is designed for use in LED-based map lights, dome lights, door lights, and other automotive lighting applications.
The IS32LT3175 integrates functions which normally require a microcontroller and several discrete components. Individual resistors are all that are required to adjust the LED current from 10 mA to 150 mA as well as the fade up / down ramp speed. There is no software programming required. The LED driver can be controlled by either a momentary contact switch or a courtesy signal input. An integrated debounce and latch circuit that conditions the switch input so a single press of the mechanical switch does not appear like multiple presses.
Features and Benefits