The EV2639A-R-00A is the reference design board for MP2639A, a highly-integrated, flexible switch-mode battery charge management for 2-cell series Li-ion and Li-Polymer battery used in a wide range of applications.

The demo board uses two operating modes—charge mode and discharge mode—to allow management of system and battery power based on the state of the input.

When input power is present, the board charges a 2-cell series battery with 2.5A charge current.

In the absence of an input source, the board switches to discharge mode through the PB pinto power the system from the battery with 5A.

The evaluation board provides 4-LED drivers to achieve the voltage based fuel gauge indication and distinguish charge mode from discharge mode.

To guarantee safe operation, the EV2639A-R-00A has input-over-voltage protection, battery over-voltage protection, thermal shutdown, battery-temperature monitoring, and a charge timer to prevent prolonged charging a dead battery.