WEBENCH-POWER-DESIGNER: LM25145: Setting of DCM or CCM

Dice-K

Part Number: WEBENCH-POWER-DESIGNER
Other Parts Discussed in Thread: LM25145, LM5145, LM5146-Q1

Hi support team,

Is the LM25145 DCM only?
Even if the Diode emulation mode is turned off, only a resistor is inserted in the SYNCIN-pin, and it does not become HIGH.
What I want to do is DCM efficiency simulation, but I want to compare it with CCM.

Regardless of the Diode emulation mode switch, the MODE on the report is CCM, so there is no certainty that it is DCM.

Regards,
Dice-K

over 2 years ago

0 Praveen Badiger over 2 years ago

TI__Expert 8365 points

Hi Dice-K,

Currently, the Diode emulation mode is not modelled on the WEBENCH. We are looking the same. We will get back to you by next week on possibility of enabling the same. Kindly note that, it will take some time to enable it on Webench (tentatively a month).

Thanks & Regards,
Praveen

+1 Timothy Hegarty over 2 years ago in reply to Praveen Badiger

TI__Mastermind 49317 points

Hi Dice-K,

We do not currently model DCM operation in WEBENCH or the quickstart calculator. However, you can try your configuration by suitably modifying the LM5145 or LM5146-Q1 EVMs.

Regards,

Tim

Power management

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WEBENCH-POWER-DESIGNER: LM25145: Setting of DCM or CCM