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SPSB081 Datasheet(PDF) 26 Page - STMicroelectronics |
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SPSB081 Datasheet(HTML) 26 Page - STMicroelectronics |
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26 / 135 page  Figure 16. Overvoltage protection on V1 Two thresholds run the overvoltage event. When SPSB081 detects an overvoltage event on the V1 pin: • If V1ov_th1≤ V1 < V1ov_th2 => V1_OV status flag is raised after tfilter1 and in the same time NINT is pulled low for 56 μs. • If V1ov_th2 ≤ V1 < 6.5 V => It causes a Non Recoverable Failure and the device is forced to Vbat standby mode (V1 is switched OFF and FORCED_SLEEP_V1OV (SR2) is raised after tOV1filter2). The internal pull-down transistor which will discharge the decoupling capacitor through the Rdischarge is activated If the Vbat stdby is caused by an output overvoltage on V1, the status flag stays set (V1_OV=1). SPSB081 V1 overvoltage detection DS14048 - Rev 1 page 26/135 |
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