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UCD90120: Fusion Digital Power Designer don't find the UCD90120

Part Number: UCD90120

We use the TI_Fusion_Digital-Power-Designer to program the UCD90120. The Fusion software don't enter the gui.

We retry many times, then the fusion software enter the GUI and show the error below:(The device is displayed as: UCD9XXX)

If we use Device GUI to scan, the information is below:

1. We try many versions of TI_Fusion_Digital-Power-Designer, such as version 1.8.230, 1.9.63, 2.0.179, 2.0.50, 7.0.19, 7.0.25, 7.7.1. And the OS is Window7, Window10 and Window11. The result is the same.

2. Our circuit of the UCD90120 is below: (Address = 52. The Pin of ADDR0/1 are pulldown with 30Kohm resistors)

3. The old UCD90120 ordered by last year are OK for all of our board. And the new UCD90120 ordered by this year have the problem that was described above.


Could you help us to resolve these questions, please? Thanks very much!