EYE on NPI: Richtek RT4539 36 V I²C Controlled 6-Channel WLED Driver
This week's EYE ON NPI is a bright-eye'd and bushy-tailed go-getter, who can juggle multiple tasks at once: it's the Richtek RT4539 36 V I²C Controlled 6-Channel WLED Driver (https://www.digikey.com/en/product-highlight/r/richtek/rt4539-36-v-6-ch-wled-driver)! This chip can do it all: it's a boost converter, it's a calibrated constant-current sink, it's a PWM controller, it's a gamma-corrector, and it's got I2C for controlling all the settings. It's designed for use in laptop or tablet backlight control, and all the little extras that were designed in make it excellent for other sorts of…
The skinny
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