A6214 & A6216 Auto PWM Dimmable LED Drivers

Allegro MicroSystems A6214 and A6216 Auto PWM Dimmable LED Drivers are AEC-Q101 qualified and offer a 4.5V to 55V supply voltage range with an integrated MOSFET switch. The A6214 is a single-IC switching regulator that provides constant-current output to drive high-power LEDs and integrates a high-side N-channel DMOS switch for DC-to-DC step-down (buck) conversion. The output voltage is automatically adjusted to drive various numbers of LEDs in a single string, ensuring optimal system efficiency. The LED dimming is achieved by direct logic input pulse-width-modulation (PWM) signal at the Enable pin. The A6216 has the added capability to generate its own PWM dimming frequency and duty cycle in stand-alone mode. Allegro MicroSystems A6214 and A6216 Auto PWM Dimmable LED Drivers are suitable for automotive lighting applications, including daytime running lights, map lights, and dimmable interior lights.