The new A8513 from Allegro MicroSystems Europe is a single-output white LED driver IC designed for backlighting applications in LCD displays for automotive and consumer applications and their associated application, performance and protection requirements.
The new device, which integrates a current-mode boost converter with an internal power switch and one current sink, is designed to provide a robust solution for applications such as automotive infotainment, cluster and centre-stack lighting, industrial LCD displays, portable DVD players, flatbed scanners and LED lighting.
The A8513 can operate from a single power supply from 4.5 to 40V to accommodate start/stop, cold-crank and load-dump requirements. The 2MHz switching frequency of the boost converter allows the device to operate above the AM radio band.
The new device features robust FMEA (failure modes and effects analysis) performance, and constantly monitors the state of the system to determine if any fault conditions occur, with a fault flag pin alerting the controller to possible fault conditions. www.allegromicro.com