Other Parts Discussed in Thread: CSD87381P,
Hi,
(I'm sorry to ask you frequently..)
We are currently analyzing the pmic performance of our board due to poor performance.
1. Compared to the TPS650864x EVM board, The EVM board found that the PGNDSNS and CSD87381P's GND were separately separated and connected to each other.
(ex. PMIC pin.40 <-> route <-> CSD87381P GND pin.3)
On our board, on the other hand, it is connected to the GND PLANE without any separation.
Can you tell us the difference between the two cases?
2. According to the datasheet, FBVOUT1 is described as follows: Connect to positive terminal of output capacitor.
On our board, FBVOUT1 is connected with the next node of feedback resistance.
Is that the problem?
(Green : VSYS, Yellow : GPO1)
(T6508641 / PG1.0 / TI 84I / C39X G4 ??)
(Green : LDO3V3, Yellow : GPO1)
Regards,
Geonwoo