kinda sorta not really. As others have noted, if it’s a push-pull driver (actively driving high AND low) then it will act as a current source when it’s high and possibly fry itself or the LED. If it’s open-drain, it is only driven low and is Hi-Z when logic-high.
In either case, you need to be careful about the amount of current being sunk when it’s low, and you need to make sure it’s got lower impedance than the LED (probably yes).
/dev/rdsk/c5t1d0s2 /
npub1m3…k4xuv
2024-07-31 22:52:51
in reply to nevent1q…pjl7
Author Public Key
npub1m33czg27v449dkq5jh80qg9q52gumjcpj5uchh0d250w8yudmxsqmk4xuvPublished at
2024-07-31 22:52:51Event JSON
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"content": "kinda sorta not really. As others have noted, if it’s a push-pull driver (actively driving high AND low) then it will act as a current source when it’s high and possibly fry itself or the LED. If it’s open-drain, it is only driven low and is Hi-Z when logic-high. \n\nIn either case, you need to be careful about the amount of current being sunk when it’s low, and you need to make sure it’s got lower impedance than the LED (probably yes).",
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