MAX6440 Datasheet | Maxim Integrated

Description The MAX6439- MAX6442 are a family of ultra-low-power battery monitors with integrated microprocessor (µP) supervisors. The battery monitors are offered with single or dual low-battery output options that can be used to signal when the battery is OK (enabling full system operation), when the battery is low (for low-power system operation), and when the battery is dead (to disable system operation). These devices also have an independent µP supervisor that monitors VCC and provides an active-low reset output. A manual reset function is available to reset the µP with a push-button. No external ponents are required. The MAX6439- MAX6442 are offered with several factory-trimmed low-battery threshold binations ideal for single-cell lithium-ion (Li+) or multicell alkaline/Ni Cd/ Ni MH applications. When the battery voltage drops...