Design
Automotive auto-dimming for electrochromic mirrors
Modern vehicles utilise auto-dimming mirrors to prevent glare and visibility loss for the driver. This reference design from Texas Instruments utilises modern human-eye-response ambient light sensors and a high-current amplifier stage to drive a capacitive electrochromic mirror load.
The features of the reference design include human-eye-response light sensors, ten-bit output, 3.3V 400mA capacitive load driver, fast discharge of electrochromic load, and wide VBAT operation (up to 40V).
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