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发表于 2021-5-28 05:58:00
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The bq20z90 uses the SRP and SRN inputs to measure and calculate the battery charge and discharge current using a 5 mΩ to 20 mΩ typ. sense resistor.
The bq20z90 can exit sleep mode, if enabled, by the presence of a programmable level of current signal across SRP and SRN.
资料中的原文,这颗芯片使用SRP和SRN两个管脚来监控电流监控电阻上面的电压降来判定充、放电电流。如果芯片进入休眠模式,可以在这两个管脚上面施加可编程幅度的电压来激活。或者说,在电流监控电阻上面并联一个可调恒流源,通过调整电流,即可激活。 |
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