SN74LVC1G17: Leakage current of internal clamp diode between OUTPUT(Y) and VCC

Tamio Yokokura

Part Number: SN74LVC1G17

Logic support team

As far as I see the absolute maximum rating of SN71LVC1G17, a clamp diode is placed between OUTPUT(Y) and VCC. Generally, a clamp diode is much leakage current. Customer circuit is terminated with 1Mohm resistor and the low level threshold is max. 0.4V As a result, The leakage current is erequired less than 400nA.

How much does the leakage current flow from VCC to OUTPUT(Y)?

And also,

How much does the current from INPUT(A) to VCC when Vin > Vcc?

Thanks

Tamio

over 5 years ago

0 Clemens Ladisch over 5 years ago

Guru 317730 points

The input leakage current is specified as I_I, i.e., at most 5 µA.

For an inactive output, the leakage current is specified as I_off, i.e., at most 10 µA.
For an active output, specifying the leakage current does not make sense because the output itself is much stronger.

Can you show a schematic, and where exactly the leakage current that you have doubts about is flowing?

0 Dylan Hubbard over 5 years ago in reply to Clemens Ladisch

TI__Mastermind 46295 points

Hey Tamio,

This FAQ will also help here: e2e.ti.com/.../723607.

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SN74LVC1G17: Leakage current of internal clamp diode between OUTPUT(Y) and VCC