Other Parts Discussed in Thread: LM5171
Tool/software:
We are evaluating the LM5171 for our application via the LM5171 EVM.
We are interested in regulating the current in both directions.
Buck mode
My test setup for Buck involves a Bench power supply on the HV side, an Electronic load, in CC mode, on the LV side,
and a power supply for driving the control voltage on the CC control input (J43 (with J42 shunt installed)).
As I reduce the CC control voltage towards 1V, I do, in fact, see the current limit through the device, until closing off at 0.99V
Just as expected.
Boost Mode
Now reversing the setup with the power supply on the LV side, the E-load on the HV side, the DIR and VIN shunts moved appropriately,
the device now enters the boost function and does so just fine.
But, the CC Control voltage does not appear to have any effect on the current.
Is there more to the set up needed?
Or does current control not work in boost mode?
Thanks
