Tool/software:
Hi,
If multiple loads are connected to the output. Is it possible to distinguish which of the different load is experiencing a short circuit?
I guess no but I wanted to make sure.
BR
Oscar
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Tool/software:
Hi,
If multiple loads are connected to the output. Is it possible to distinguish which of the different load is experiencing a short circuit?
I guess no but I wanted to make sure.
BR
Oscar
An additional question:
Is this possible with a multiple channel device to check which of the output is experiencing a SC
Let´s say for instance the : TPS4HC120-Q1 data sheet, product information and support | TI.com
Or can you suggest on device capable of doing this?
BR
Oscar
Hello Oscar,
FLT diagnostic per channel is multiplexed on the sense pin for TPS4HC120
From the Fault Reporting section of the datasheet:
The global FLT pin is used to monitor the global fault condition among all the channels. When a fault condition occurs on any channel, the FLT pin is pulled down to GND. A 3.3-V or 5-V external pullup is required to match the supply level of the microcontroller. The FLT pin reports faults on any channel as long as the device is not in the SLEEP or LOW POWER MODE.
After the FAULT report, the microcontroller can check and identify the channel in fault status by multiplexed current sensing. The SNS pin also works as a fault report with an internal pullup voltage, VSNSFH if DIAG_EN is high.
BR,
Alan
Hi Alan,
Thank you!
I understand, But for the TPS1HC100-Q1 is not possible correct?
BR
Oscar
Hello Oscar,
These faults will be seen as VSNSFH on the TPS1HC100. Although overcurrent has a different behavior compared to the other FLTs reported on SNS. I have attached the FLT table.
BR,
Alan