TPS3421: I need help selecting part with correct timing

IgorR

Part Number: TPS3421
Other Parts Discussed in Thread: TPS3422

I need full part number for the device which meets following timing requirements:

t_TIMER = 7.5s

t_RST = 80ms

Looking at the datasheet I assume that the correct part number would start with TPS3421ECzzza but other documents I checked suggest different.

0 Jesse Villanueva over 3 years ago

Hi Igor

Thank you for the question, please use either part numbers below. The suffix T and R just represents packaging of the device.

Jesse

0 IgorR over 3 years ago in reply to Jesse Villanueva

Thanks Jesse.

Couple of additional questions:

I need a device that monitors a single input as in TPS3422. Does it come with above timing requirements? If not I can probably just tie both inputs of the TPS3421 to the same push button.
Ideally I would want the t_RST to be between 20ms and 60ms. Is there any way to get a device with reset pulse duration within this range?

+1 Jesse Villanueva over 3 years ago in reply to IgorR

Hi Igor,

Unfortunately the TPS3422 does not come with that reset delay. Also tying the input of the TPS3421 to a single push button is a valid use case.

Jesse

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