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Part Number: TPS55288
Dear TI support
Can you help check , Why I use TPS55288 PIN14( FB/INT) the function not implemented?
I use internal feedback, and external pull-up resistors, According to the function, it should be pulled down if there is a problem, but now OK work is also pulled down, please help to confirm, or point out how I need to use the abnormal function of FB/INT, I need to use this PIN to judge the working status。
Could you please share the schematic with us, does the INT pin pulled high? Please refer to the TPS55288EVM board, there's a 100k ohm resistor pull high to a 5V VCC.
Boost DC/DC Solution
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In reply to Helen chen:
The circuit diagram is as follows, we have a pull-up resistor, and the software is set to internal FB function.
In reply to user4720651:
I checked on the EVM board, the INT function is good.
Please check the setting in your I2C, is it well set? Please compare with below picture.
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