TPS6594-Q1: INT_LDO3_4 Register I read the bit (LDO4_SC_INT) is 1,what is the meaning of it?

xuefeng li

Part Number: TPS6594-Q1

Hi,

We read the register of TPS65941212RWERQ1 via IIC, found the LDO4_SC_INT is 1,we write this register to clear this bit ,but not success.

we test the voltage of LDO4 1.8V, and the system works properly.

datasheet describe the meaning of this bit ,but I do not understand. it mean the voltage ripple is high or not ？

over 2 years ago

0 Daniel W over 2 years ago

TI__Genius 13216 points

Hi,

Sorry for the delay. Please expect a response on Monday.

0 Daniel W over 2 years ago in reply to Daniel W

TI__Genius 13216 points

Hi Xuefeng,

For the TPS65941212-Q1, LDO4 is in the MCU power group. So a short circuit error will cause a complete reset of the PMICs. The LDO4_SC_INT can also be triggered by failed residual voltage check during startup. The interrupt should be able to be cleared by writing 0x1 to the interrupt bit

Thanks,

Daniel W

Power management

Power management forum

TPS6594-Q1: INT_LDO3_4 Register I read the bit (LDO4_SC_INT) is 1,what is the meaning of it?