Part Number:LM5175
Dear Specialists,
My customer is considering LM5175 and has a question about valley current sensing.
I would be grateful if you could advise.
---
Regarding the overcurrent protection during the step-down operation of the LM5175 and LM5176,
On the detection of the low side (the valley side of the inductor ripple current), is it effective for bidirectional flow?
(background)
In the condition where the capacitance of the output side capacitor is large (eg 2200 uF × 3 etc.)
If the reverse current flows from the output capacitor side to the GND through the detection resistor when using the CCM in the step-down operation mode to release the OVP, it is concerned that detection can not be performed.
In the worst case, we are worried that the parts of this route will not break.
---
I appreciate your great help in advance.
Best regards,
Shinichi