Hi expert,
My customer find that some OPA569 parts when output saturation, the current limit function doesn't work.
The supply voltage is 5.4V, current limit set 600mA.
Flag is I_FLAG pin4, DMM Read is Vout pin14/15.
As you can see, when OPA569 output saturation, OCP function doesn't work.
Could you explain this situation? thanks!
Hi Jiandong,
Q: My customer find that some OPA569 parts when output saturation, the current limit function doesn't work.
OPA569 is sourcing current when I_Flag is activated at 0.6A (I_Flag should have been high). We need more information from you.
1. Could you share the schematic with us?
2. What is Enable pin8 state at 0.6A in IC2?
3. What is T_Flag pin7 state at 0.6A in IC2?
4. What percentage of OPA569 parts exhibit this behavior.
Best,
Raymond
