Tool/software:
hello,Expert
I would like ask some question about the tps92520:
1. About the VINx ADC Acquisition ，I check the datasheet，refer to the following picture:
what is the 0.037? Sampled VIN voltage divided by resistors?
for an example:if the VIN voltage is 10V,Then the sampled voltage is 0.37V,Is this correct understanding?
2. "achieve an 8bit conversion ratio of 65/255(V/dec) " What does this sentence mean?
for an example:if read the CHxVIN register，Its value is 255,Then the VIN voltage is 255/255*65=65V ，Is this correct understanding?
3.What is the acquisition accuracy of this ADC? i found the following picture, Which parameter in the following figure can represent ADC sampling accuracy?
4. About the operation mode of the ttps92520 ,I checked the datasheet found Initialize Device without Watchdog timer or Initialize Device with Watchdog timer，
refer to the folowing picture,Why doesn't the red text match the title? If the watchdog timer is not disabled or the device does not receive a valid SPI command in 1.55 s after power
up, the device will transition to standalone mode，but If I disable the watchdog timer and the device does not receive a valid SPI command in 1.55 s after power up, it can still enter the standalone mode？
5. I want to ask about a working condition. The power supply of the 92520 is always available. The 92520 communicates normally with the control MCU. At this time, the 92520 is in working state and the lamp is on. I reset the MCU at this time, but the UDIM pin is at high level, I did not configure the LIMP HOME register, can the 92520 light continue to light up?
please help explain the above question.
thank you
best regards
