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TPS65987DDJ: TPS65987 load flash questin

kerr chang
Genius 4075 points
Part Number: TPS65987DDJ
Other Parts Discussed in Thread: TPS65987

Hi Team

          I have use TPS65987 in my system. I have one question.

Type C connector did nor connect any device. and system disable Vin3.3 and re-enable Vin3.3.

The TPS65987 will re-load flash data ( W25Q80 )

If I use C to A cable connector TPS65987 (sink 5V) and system disable Vin3.3 and re-enable Vin3.3..

Does TPS65987 will load code again ?  ( because Vbus have 5V , I thnk TPS65987 Vbus5V will provide LDO3V3 ) 

  • 0
    TI__Genius 12700 points

    Hi Kerr,

    Yes, once the VIN_3V3 is removed, the LDO_3V3 is supplied by the VBUS LDO. From there, after a specified time interval, there will be a hard reset initiated by the firmware, at which point, the device will reboot in dead battery mode.