MP2615GQ-Z Integrated Circuits (ICs)

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1. Describe

MP2615GQ-Z is a high-efficiency switch-mode battery charger suitable for 1-cell or 2-cell Li-ion or Li-polymer applications. The MP2615 can provide a programmable 2A charging current through a precise sense resistor over the entire input range. MP2615 uses two control loops to adjust the charging current and battery full voltage to achieve high-precision constant current (CC) charging and constant voltage (CV) charging. When the battery voltage is close to the input voltage, constant off time (COT) mode control allows up to 99% duty cycle operation In order to keep the charging current at Relatively high level. Battery temperature and charging status It is always monitored during each charging cycle. Two status monitor output pins are provided to Indicate battery charging status and input Power status. MP2615 also has Internal reverse blocking protection. MP2615 adopts 3mm × 3mm 16-Pin QFN package.

2. Feature

    1. 4.75V to 18V operating input voltage

    2. Up to 99% duty cycle operation

    3. Programmable charging current up to 2A

    4. ±0.75% full battery voltage accuracy

    5. 4.1V/Cell and 4.2V/Cell are selected for full battery voltage

    6. Fully integrated power switch

    7. Internal loop compensation

    8. No need for external reverse blocking diode

    9. Preconditioning of fully exhausted battery

  10. Charging operation indicator

  11. Programmable safety timer

  12. Thermal shutdown protection

  13. Cycle-by-cycle overcurrent protection

  14. Battery temperature monitoring and protection

3. Application

    1. Smartphone

    2. Portable handheld solutions

    3. Portable media player

4. Pin configuration

5. PIN FUNCTIONS