I setup Voltage Based Shutdown and get the following behavior:
With no charger plugged in, when Min Cell Voltage goes below Shutdown Voltage, DSG FET turns off for less than a second then turns on again. After a few more seconds this cycle repeats until Min Cell Voltage remains below Shutdown Voltage while DSG FET is off. We are drawing about 500mA when DSG FET on.
The behavior I would like is once in Shutdown, the DSG FET remains off until ACP > V startup as opposed to cycling on and off until battery is drained further. Below are the settings I am using:
- Shutdown Voltage 3000mV
- Shutdown Time 5 S
- Charger Present Threshold 10000mV
- Power Off Debounce 8x250ms
Questions:
- Is V startup the same as Charger Present Threshold? I didn’t see where V startup can be set.
- According to SLUUA04-December 2014, 5.4.1, once in SHUTDOWN mode, it should require Voltage at ACP pin > V startup to EXIT. Any ideas what could cause the cycling on and off that I am getting?
Warmest Regards,
David