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TPL7407LA

SLRS073 – MAY 2017

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Device Functional Modes (continued)

7.4.3 ON State Input Current

The current into the INx pins is defined in the electrical characteristics table for input voltages from 1.5 V to 5 V.

At higher voltages, this leakage increases, and the input current can be estimated using the approximate clamp

voltage for the OVP diode, 6.4 V. Equation 1 shows how to approximate input current for input voltages greater

than 6.4 V:

where

•

•

1 MΩ is the input pull-down resistance

•

50 kΩ is the input series resistance

•

6.8 V is the approximate clamp voltage for the OVP diode

(1)