Hello,
I have some questions about TPS53667. The TPS53667 is used in a four-phase supply circuit together with CDS95490Q5MC. I can share the schematic off line if you need.
Questions
- When an external MOSFET damages in the multi-phase supply circuit, is there a way for the TPS53667 to identify which MOSFET is by its status register and so forth?
- Sometimes, 1b is read from a status register which is described "not supported and always set to 0." What happens to this register?
- Is there any operating condition that won't generate a switching pulse from the TPS53667?
- If it's yes, how the TPS53667's status registers look like when it happens?
- Is there any operating condition that irregularly generates switching pulses from the TPS53667?
- If it's yes, how the TPS53667's status registers look like when it happens?
- The section 7.6.2.3.33 of the data sheet says the CUR_SH_WARN bits (STATUS_MFR_SPECIFIC[5:3]) is "not supported and always set to 0" while the section 7.3.19 says, "The faulty phase can be read from STATUS_MFR_SPECIFIC[5:3]." Which is correct?
- What's the condition for the STATUS_MFR_SPECIFIC register to detect a phase fault?
- Can the TPS53667 detect which MOSFETs are when multiple external MOSFETs damage?
- Is there a way for the TPS53667 to individually stop generating switching pulses from certain phases?
Best regards,
Shinichi Yokota