UCD9248: How to make the UCD9248 chip proper functioning?

Lyndon Liu

Part Number: UCD9248

Dear Sir,

We met a question about the UCD9248 chip. We have designed the UCD9248 chip on board, we found the chip can't output PWM and SRE signals. Is there default FW inside the UCD9248 chip or not? If not, could you provide the related FW to me? And, how can i download the FW to UCD9248 chip(FUSION_DIGITAL_POWER_DESIGNER + USB Interface Adapter)? Or, can i using tools configurate the chip directly?

Thanks!

over 1 year ago

0 Travis Williams over 1 year ago

TI__Expert 8960 points

Hello Lyndon,

You can use Fusion with the USB to GPIO tool to program the device. You can enter your configuration, OVP, OCP, etc into Fusion, then press "write to hardware", then "store to NVM" to program the part. The USB to GPIO tool communicates over PMBus, and therefore requires a PMbus connection to the part in order to program & monitor the chip.

Thanks,

Travis

0 Lyndon Liu over 1 year ago in reply to Travis Williams

Prodigy 50 points

Hi Travis,

Thanks for your reply!

After configured the UCD9428 chip by Fusion Digitial Power Tool, click the "start polling", but there is no voltage output, only 2 warning tips (POWER_GOOD#, Output off) and 1 Fault tips, shown as in figures. Could you help us to check it?

Ps: Our design is referred to the vc709_Schematic_xtp213_rev1_0 of Xilinx.

Thanks!

+1 Travis Williams over 1 year ago in reply to Lyndon Liu

TI__Expert 8960 points

Hi Lyndon,

Apologies for the delay, I typed out a message but apparently I did not send it. Because this issue has been opened in a new post, I'll close this thread. We can continue the debug in the new thread.

Thanks,

Travis

0 Lyndon Liu over 1 year ago in reply to Travis Williams

Prodigy 50 points

Hi Travis,

Many thanks! We can continue discuss in the new thread.

Thanks!

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UCD9248: How to make the UCD9248 chip proper functioning?