• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 278 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS61180: In case of OVER-CURRENT condition

Hirotaka Matsumoto
Guru 27585 points
Part Number: TPS61180

Hi all

Would you mind if we ask TPS61180?

There are descriptions on the datasheet as follows;
"The PWM switch turns off when the inductor current reaches this current threshold."
"Under severe over-load and/or short circuit conditions, the VO pin can be pulled below the input (V BAT pin).
Under this condition, the current can follow directly from input to output through the inductor and Schottky diode.
Turning off the PWM switch alone does not limit current anymore.
In this case, the TPS61180/1/2 ICs detect the output voltage is 1V (short circuit detection threshold) below the input voltage,
turns off the isolation FET, and shuts down the IC.
The IC restarts after input power-on reset (V BAT POR) or EN pin logic toggling."
->In case of Over current condition, does it require to insert Fault protection FET at Fault pin for shuts down?
  Without FET at Fault , it is impossible to shuts down the device, right?

Kind regards,

Hirotaka Matsumoto