LM3644: How does CPU know the fault event occur from LM3644?

Ray Chang

Intellectual 1345 points

Part Number: LM3644

Hi team,

If the LM3644 has fault event, it will into standby, but we can't find the any int pin to inform external chip.

How does CPU know the fault event occur from LM3644?

over 6 years ago

0 Sean Zhou over 6 years ago

TI__Mastermind 22745 points

Hi Ray,
Sure, you can use the CPU to read the reg 0x0A and reg 0x0B to know which fault has occured. Those two regs was used to report the detail fault state.
Regards
Sean

0 Ray Chang over 6 years ago in reply to Sean Zhou

TI__Intellectual 1345 points

Hi Sean,

If my customer need the controller to send the interrupt to CPU to alert fault condition be occurred.
Do we have the related product to support this feature?

0 Sean Zhou over 6 years ago in reply to Ray Chang

TI__Mastermind 22745 points

Hi ray,
I'm sorry that you can only read those regs to know the fault information, we can't report faults.
Regards
Sean

0 Ray Chang over 6 years ago in reply to Sean Zhou

TI__Intellectual 1345 points

Hi Sean,

Noted, thanks for your checking.

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LM3644: How does CPU know the fault event occur from LM3644?