Simplified Block Diagram
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This EV kit includes an on-board p-channel FET for reverse-battery protection, a button to allow testing of the regulator hold feature, and connections to both regulators, the windowed watchdog timer, and the µP reset line. Two LEDs indicate the status of both voltage regulators. Jumpers provide control over all major features of the MAX6791. The EV kit operates at temperatures ranging from -40°C to +105°C, although the MAX6791 itself can withstand temperatures up to +125°C.