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DS90UB928Q-Q1: DS90UB928Q-Q1 low power control

Gene Qiu
Intellectual 1720 points
Part Number: DS90UB928Q-Q1

Hi Team,

Customers require SOC and LCD supply power separately and LCD to detect backlight separately.

  • Does DS90UB928Q-Q1 support low power mode? Start LCD power supply and MCU through DS90UB928 to work? From the datasheet of DS90UB928, we can see that Power Down mode and Sleep mode are supported. Can PowerDown mode (which does not support LCD display at this time) receive commands sent by DS90UB925?
  • DS90UB928 can accept DS90UB925 command in SLEEP mode, but does not support display. How much current does DS90UB928 work in SLEEP mode?DS90UB928 direct mode sends PWM wave to control LCD backlight brightness.

Best Regards,

Gene