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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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재고 확인 및 구매

Why are two MOSFETs used in series in the Lithium-ion secondary battery protection circuit?

In order to achieve the charge-discharge function, two MOSFETs are used as shown in Figure 1.

The case of only one MOSFET is used as shown in Figure 2, even if the MOSFET is turned off, reverse current of MOSFET flow through the body diode in discharge of Lithium-ion secondary battery.
This case will not be a function as a charge-discharge switch.