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Original question:

TS5A21366: voltage check

TS5A21366: Can IN1/2 = 3.3V when use 1.8V at Vcc

Shaquille Chen
Intellectual 1770 points
Part Number: TS5A21366

Hi Team,

Can IN1/2 = 3.3V when use 1.8V at Vcc?

Based on spec, the maximum input voltage is Vcc. It seems like this violate spec.

Shaq

  • 0
    Guru 243090 points

    The IN1 and IN2 pins are digital control inputs. Both the recommended operating conditions and absolute maximum ratings allow voltages higher than VCC.

  • 0
    TI__Mastermind 43245 points

    Hi Shaq,

    Yes, you can have IN1/IN2 be at 3.3V when your supply is 1.8V - it will register as a logic high still as well. As Clemens mentioned, this part's rec. operating conditions allow up to 5.5V on the digital control pin when you have a VCC of 1.65V - 5.5V. The part will not sustain damage until 6.5V as mentioned in the absolute maximum operating conditions section of the datasheet.

    Best,

    Parker Dodson