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Battery protection chip and system

A technology for protecting chips and batteries, applied in battery overcharge protection, battery overcurrent protection, battery overdischarge protection, etc., can solve the problems of low chip integration and high cost

Active Publication Date: 2021-07-06
SHENZHEN ICM MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a battery protection chip and system to solve the problem in the prior art that an external circuit control needs to be built in order to enter a low power consumption mode, resulting in low chip integration and high cost

Method used

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  • Battery protection chip and system
  • Battery protection chip and system
  • Battery protection chip and system

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0029] Embodiment 1 of the present invention provides a battery protection chip, such as figure 1 and image 3 As shown, the battery protection chip includes:

[0030] Charge and discharge control switch tube SW;

[0031] An over-discharge protection module 11, whose input terminal is a battery voltage input terminal, is used to detect whether the battery voltage reaches the over-discharge value;

[0032] An overcharge protection module 12, whose input terminal is a ...

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PUM

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Abstract

The present invention provides a battery protection chip and system. The battery protection chip includes a charge-discharge control switch tube, an over-discharge protection module, an over-charge protection module, a charge-discharge over-current protection module, a logic control module, a substrate switching module, and a gate Control module and low power consumption control module; the technical scheme of the present invention integrates the low power consumption control module in the battery protection chip, and controls the battery protection chip to enter the low power consumption mode according to the input signal, so the periphery of the battery protection chip proposed in this embodiment Do not add low-power consumption circuits, the peripheral circuit is simple, the area of ​​the protection board of the whole system is small, and the integration of the battery protection chip is high, which reduces the cost of the whole system.

Description

technical field [0001] The invention relates to the technical field of battery protection, in particular to a battery protection chip and system. Background technique [0002] When electronic products are transported for a long time or standby for a long time, the battery system will consume energy by itself, causing the battery voltage to drop, or even lower than the over-discharge value. At this time, the charger must be plugged in to use. In the case of transportation or long-term standby, the battery protection system needs to work in a low-power mode. The current battery protection system generally uses a low-power signal trigger circuit to make the system enter a low-power mode through an external circuit mode. This mode needs to be built External circuit control results in low system integration, high cost, and inconvenient use. Contents of the invention [0003] The purpose of the present invention is to provide a battery protection chip and system to solve the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02H7/18
CPCH02H7/18H02J7/00302H02J7/00304H02J7/00306
Inventor 李杰白青刚杨小华
Owner SHENZHEN ICM MICROELECTRONICS CO LTD