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TPS3851: Inquiry About WDI pin leakage current for TPS3851G33EDRBR

chunli Liang

Intellectual 310 points

Part Number: TPS3851

Hi

In my application, the DC characteristics VIL of the WDI pin are critical for selecting an appropriate level shifter.
I need to know the maximum input leakage current for the WDI pin.

This parameter affects the VOL of the output device.
This parameter does not appear to be explicitly specified in the datasheet.
Could you please provide the maximum input leakage current for the WDI pin on the TPS3851G33EDRBR?

Thanks and Best Regards

Chunli Liang

0 Jesse Villanueva 4 months ago

TI__Mastermind 22280 points

Hi Chunli,

Unfortunately we do not have data requested. From bench testing, it is a few nanoamp range. What is the maximum tolerable current for your output device?

Jesse

0 chunli Liang 4 months ago in reply to Jesse Villanueva

Intellectual 310 points

Hi Jesse

Thank you for your quick answer.

In fact, I want to use SN74AXC2T45QDCURQ1 in my design.

The maximum output current (IOH) of SN74AXC2T45QDCURQ1 is 50mA.

Because the current consumed by the TPS3851G33EDRBR's WDI pin is in the few nanoamp range.

Can we assume that TPS3851G33EDRBR's WDI pin only consumes a few nanoamp?

The info of SN74AXC2T45QDCURQ1 is below.

SN74AXC2T45-Q1 Automotive 2-Bit Translating Transceiver with Configurable Level-Shifting datasheet (Rev. B)

Thanks and Best Regards

Chunli Liang

0 Jesse Villanueva 4 months ago in reply to chunli Liang

TI__Mastermind 22280 points

Hi Chunli,

A 50mA input budget is plenty for the WDI of the TPS3851.

Jesse