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ST Reveals Highly Integrated and Flexible Automotive LED Driver

20.08. 2021 | News
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STMicroelectronics’ ALED6000 single-chip automotive LED driver with integrated DC/DC converter is a low-BoM solution that allows design flexibility and keeps the lighting intensity consistent as electrical conditions within the vehicle fluctuate.

Suitable for exterior lighting such as daytime running lights, headlights, rear lights, stop lights, and turn signals, as well as interior lighting, the ALED6000 drives a single string of LEDs at up to 3A and has a wide input-voltage range of 4.5V to 61V.

The ALED6000 implements digital dimming and has a dedicated pin to apply the PWM control signal. There is also an Enable pin and a Sync pin that ensures low noise in multi-device applications. The output current is accurate within 3.2% and is monitored efficiently with a sense resistor that has a typical voltage drop of 250mV. The quiescent current is extremely low, at just 2.4mA in operation and 11µA in shutdown (more info).

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