Sir,
I have used TPS65023RSBT power management IC to give power, reset and power sequence for TMS320C6747 IC.
As per 6747 datasheet, dsp requires power up and power down sequencing (Section 6.3.1 and 6.3.2 of dsp datasheet).
I have prepared PMIC schematics similar to EVML137 board schematic. But this schematic will not maintain power on / off sequencing as mentioned in datasheet.Please clarify me if power sequencing is requirred as per data sheet or as per EVML137 schematic .
In my schematic I have given optional provision of sequencing 1.2V first and 3.3V, 1.8V later using PWR_Fail pin of PMIC. I am not using any RTC. Only CVDD and DVDD of DSP. Please check whether this circuit fulfills sequencing requirement of dsp.
For Power OFF, I have not given any sequencing. Power OFF is like 5V input is not available at PMIC. Is it ok?