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TPS65631 Large Discharge Time

Howard Kuo
Prodigy 140 points
Other Parts Discussed in Thread: TPS65631

my customer HTC is asking about do we have any method to speed up the discharge time? The discharge function of TPS65631 is active working.docx

  • 0
    TI__Guru 61195 points
    Hello Howard,

    Thank you for the post.

    The picture you attached does not show the discharge time of the converter, it shows that when CTRL is set high, the positive converter starts first and then 10ms later the negative converter starts. The discharge is active the whole time CTRL is low and the input voltage is above the UVLO.

    Best regards,
    Brigitte
  • 0 in reply to Brigitte
    TI__Guru 61195 points

    Hello Howard,

    Here is a scope plot of the discharge of TPS65631 with the default output voltages, no load and an input voltage of 3.7V.