STEVAL-ISB002V1

Obsolete
Design Win

Digital camera battery charger design

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Product overview

Description

The STEVAL-ISB002V1 is a universal battery charger (UBC) demonstration board based on the ST72F324L microcontroller.

The charger used in this demonstration board uses a modified form of a non-inverting buck-boost converter to support the charging voltage requirement for single-cell Li-ion batteries.

The board includes a 3.3 V power supply generated from a KF33 regulator and a precision reference voltage generated from the TL1431, bearing in mind the accuracy requirement for charging. A status LED is used to show the charging status.

This demonstration board is capable of charging single cell Li-ion batteries with in-built NTC or a 2-cell NiMH battery from a 5 V supply. The firmware is easily upgradeable and can be modified for other ST7 microcontrollers depending on application requirements.

  • All features

    • 1 % measurement accuracy
    • Firmware easily upgradeable
    • Li-ion battery or 2-cell NiMH batteries
    • 5 V supply
    • RoHS compliant