BTN7030: How does the input circuitry at pin IN , EN, and DEN look like?
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Jan 23, 2023
01:42 AM
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Jan 23, 2023
01:42 AM
Input structure of pins IN, EN and DEN are shown in attached diagram
- DEN / IN / EN pins have same input structure
- the first diode is the ESD protection
- the second diode together with the resistor build a secondary protection and clamps the voltage to the circuit downstream at ~ 6,2V
- Resistor is ~ 1.15kohm
- The current sink shown is realized with a depletion mosfet and defines the pull-down current of ~ 10uA
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