Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

BTN7030: How does the input circuitry at pin IN , EN, and DEN look like?

BTN7030: How does the input circuitry at pin IN , EN, and DEN look like?

Infineon_Team
Moderator
Moderator
Moderator
5 replies posted First solution authored First comment on KBA

BTN7030: How does the input circuitry at pin IN , EN, and DEN look like?

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
Infineon_Team_0-1674466856693.jpeg
Infineon_Team_1-1674466856717.jpeg
0 Likes
18 Views
Contributors