Hello,
We are looking at the TPS3808, and the Td is well defined, but what is the time from Vit+Vhys to when /Reset goes low? I'm not see that defined in the datasheet.
I imagine it depends on the hysteresis, but I could use some help.
Thank you
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Hello,
We are looking at the TPS3808, and the Td is well defined, but what is the time from Vit+Vhys to when /Reset goes low? I'm not see that defined in the datasheet.
I imagine it depends on the hysteresis, but I could use some help.
Thank you
Hello,
The time delay from SENSE falling below VIT to /RESET low is dependent on the overdrive below the VIT threshold. The further below the VIT threshold the SENSE signal falls, the less time it will take to assert the /RESET signal. This parameter is the same as the data labeled "maximum transient duration" in the data sheet, figure 4 on page 6. The term "maximum transient duration" is intended to describe the minimum pulse width that will result in the /RESET line going low, but this is essentially the same as the delay, since the /RESET will not occur if the SENSE voltage goes above VIT within that time period.
Best Regards,
Mike