EVAL-CN0405-EB1Z

EVAL-CN0405-EB1Z is a CN0405 circuit evaluation board provides a complete solution that replaces a classical high voltage mechanical potentiometer with a push-button controlled digital potentiometer. The circuit is a simple, high voltage, variable output switching controller using the AD5116 64-position digital potentiometer in conjunction with ADCMP371 comparator that has a push-pull output stage and low power consumption suitable for battery-powered portable equipment. The circuit is powered entirely from the VIN source and accepts an input voltage up to 20V. The voltage from the divider, R1 and R2, is regulated to 3.3V using the ADP121, a 30µA, low quiescent current, low dropout linear regulator. The regulated 3.3V supplies the VDD voltage to the AD5116 digital potentiometer and the ADCMP371 comparator.