Monolithic Power Systems’ MP2676 is an integrated circuit designed to provide complete Li+ battery charger protection against input over-voltage, input over-current and battery over-voltage. The IC continuously monitors the input voltage, the input current and the battery voltage, and when any of the monitored parameters exceeds its threshold, the device immediately turns off the internal N-channel MOSFET to remove the power from the charge system before any damage occurs. All protection features include blanking time to prevent false triggering due to voltage spikes or current transients.
The MP2676 also features thermal shutdown protection – if the temperature exceeds 140°C, it turns off the internal MOSFET bridging ACIN and CHRIN. The IC integrates a P-channel MOSFET with body diode reverse protection to replace the external P-channel MOSFET and blocking diode for portable devices with PMICs (power management ICs).
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