Part Number: RM44L520 Other Parts Discussed in Thread: TPS65381A-Q1 , SN74LVC1G125 Multi-rail power supply : TPS65381AQDAPRQ1
Micro-controller : RM44L520APZT
There is connection between TPS IC/pin-6 (NRES) and uC/Pin-31 (nPORRST) with pull-up. We…
Hi Shinichi,
If your customer will be using the new version of the device TPS65381A-Q1 please make sure you and they have downloaded the new datasheet for that device. It has many updates and clarifications to help user's understand the device operation…
Part Number: TMS570LC4357 Other Parts Discussed in Thread: TPS65381A-Q1 Hello everyone,
I recently assembled an own board with the TMS570LC4357, I now know that I made some mistakes (written below) and my boards are not operational. For the next boards…
Hi Bob,
There is no parity on the whole SPI frame for the TPS65381A-Q1. Just a parity bit on the 7 bit command and from a certain viewpoint this could then be viewed as an 8 bit command. The data portion of the SPI frame does not have parity. To cover…
Just wanted to add that this project don't use TPS65381A-Q1 PMIC and we use discrete Power supply.
Can we assume the answer for the questions could be,
over voltage no matter how short duration it is, will damage the device permanently?
Hi Wayne,
These are different actions and initial causes for the RESET state transition (NRES pin pulled low in RESET state). For a watchdog forced RESET from the TMS570, the TPS65381A-Q1 will transition to RESET state immediately when the WD_FAIL_CNT…
Hi Dmitri,
The TPS65381A-Q1 is very scalable on the VDD1 core supply since the integrated rail is an LDO controller with independent voltage monitoring (VMON). Attached is a PDF showing how to use an external DCDC for the core rail supply instead of…
Hi Ku
Using the main power supply as the signal for IGN is fine and should work. As long as IGN pin input level is > 3V (POS 7.1, IGN_WUP, threshold) and the VBAT supplies, VBATP and VBAT_SAFING, have crossed above 5.8V input (minimum to start up the…
Part Number: TMS570LS1114 Other Parts Discussed in Thread: TPS65381A-Q1 Hello,
in the SafeTI™ Hercules™ Diagnostic Library Release Notes (v 2.4.0) there is the following known issue:
We develop a system in an industrial application which is running…
Hi Shimizu-san,
Please make sure you have downloaded the latest TPS65381A-Q1 datasheet, www.ti.com/.../tps65381a-q1. Shortly after change management review the TPS65381-Q1 datasheet will be updated to Revision G with the same updates already in the…
