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BQ4050: 放电过流恢复延时设置15S. 在不连通信状态与带通讯测试之前的差异

Part Number: BQ4050

recovery  delay 设置为:15S

在不连通信情况下测试:恢复延时为77.7S

连通信情况下测试:恢复延时为15S

两种状态 恢复延时相差 60多S。

  • 您好,休眠状态恢复时间长与 Sleep:Voltage Time OR Sleep:Current Time参数有关

    It looks like the device is also taking a current measurement when it wakes up every Sleep:Voltage Time OR Sleep:Current Time (whichever happens sooner). When the device exits sleep mode, it transitions to NORMAL mode. In normal mode, the current is sampled every 250ms, maybe this current is being accounted for current() continuous (see below)



    Current() continuous means, the current needs to be sampled for a total amount of OCD:Recovery Delay. 

    For example, assuming Sleep:Voltage Time = 5s and OCD:Recovery Delay is 30s.

    The current will be sampled after the device transitions to NORMAL mode every 5 seconds. But, the recovery requires a total of 30 sampled currents; and each sample current occurs every 5 seconds. 

    True Recovery Time = (Sleep:Voltage Time OR Sleep:Current Time) * OCD:Recovery Delay

    To confirm the above, please set the voltage time to 3s and the true recovery should be 90 seconds.

  • 目前设置是Sleep:Voltage Time =5S   Sleep:Current Time=20S

    OCD1 Delay=2S,5*15+2=77S

  • 您好,如果想缩短恢复时间建议调整Recovery Delay