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Semiconductor device for battery protection

A technology of semiconductors and devices, which is applied in the field of semiconductor devices for battery protection, and can solve problems such as potential safety hazards and the inability to completely shut off the charging current or discharge circuit

Inactive Publication Date: 2021-01-29
ZHUHAI MAIJU MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The devices used for battery protection in the battery system in the prior art often cannot completely shut off the charging current or discharge circuit when the battery is overcharged or overdischarged, posing potential safety hazards

Method used

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  • Semiconductor device for battery protection
  • Semiconductor device for battery protection
  • Semiconductor device for battery protection

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Embodiment Construction

[0052] The present disclosure will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific implementation manners described here are only used to explain relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only parts related to the present disclosure are shown in the drawings.

[0053] It should be noted that, in the case of no conflict, the implementation modes and the features in the implementation modes in the present disclosure can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with implementation manners.

[0054] Unless otherwise specified, the illustrated exemplary embodiments / embodiments are to be understood as exemplary features providing various details of some manner in which the technical idea of ​​the pre...

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Abstract

The present invention provides a semiconductor device including a first cellular region in which a first field effect transistor is formed; a second cellular region in which a second field effect transistor is formed, wherein the second field effect transistor is used as a first switch, and the first switch is used for controlling connection and disconnection between a source electrode of the first field effect transistor and a substrate; and a third cellular region provided with a second switch used for controlling the connection and disconnection between a grid electrode and a drain electrode of the first field effect transistor; wherein the first cellular region, the second cellular region and the third cellular region are sequentially formed, and the second cellular region is formed between the first cellular region and the third cellular region.

Description

technical field [0001] The disclosure belongs to the technical field of semiconductors, and in particular relates to a semiconductor device used for battery protection. Background technique [0002] In the battery system, the overcharging and overdischarging of the battery will not only reduce the service life of the battery, but also cause explosion and fire accidents in severe cases. The battery is, for example, a lithium battery pack or the like. [0003] The devices used for battery protection in the battery system in the prior art often cannot completely shut off the charging current or the discharging circuit when the battery is overcharged or overdischarged, posing potential safety hazards. Contents of the invention [0004] In order to solve one of the above technical problems, the present disclosure provides a semiconductor device for battery protection. [0005] The disclosed semiconductor device for battery protection is realized through the following technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/088H01L29/78H02J7/00
CPCH01L27/088H01L29/7818H02J7/00302H02J7/00306
Inventor 周号
Owner ZHUHAI MAIJU MICROELECTRONICS CO LTD
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