Part Number: LM5143DESIGN-CALC Other Parts Discussed in Thread: LM5143-Q1 , LM5145 Hi team,
here is two confusing items of LM5143q design:
1.there is a descripton as following in the datasheet what seems not to make sense, actually it suppose that there…
Part Number: LP8866-Q1 Hello,
Could you please provide a brief guideline of how to select the boost FET? What critaria will be applicable to the boost FET for "VGD/(RDS_ON + total resistance to gate input of SW FET) must not be higher than 2.5 A"?…
Part Number: LM5140ADESIGN-CALC Other Parts Discussed in Thread: LM5143-Q1 , LM5140-Q1 Hi Experts,
the LM5140ADESIGN-CALC seem to always recommend the same FET. Even when Vin is exceeding the max voltage of the IPC50N04. Is there an issue or is this part…
Part Number: MOSFET-LOSS-CALC Hi team,
It seems the download link on doesn't work. Could you please help send the link or zip file to me by email? Thanks,
Scarlett CAO
Part Number: LM5176-Q1 Hi,
I have a question about loss calculation as follows.
When in buck mode, Why is QL1 calculated only as conduction loss? (Is QL1 calculated as conduction by replacing diode in buck mode?) Shouldn't switching loss be considered?…
Part Number: DRV8316C-Q1 Tool/software: Hi,
I want to estimate losses while using the BLDC driver mentioned.I found this excel sheet for calculation.Do we have an application note to understand the equations provided in this excel sheet
www.ti.com/.…
Hi Darshan,
Qoss is the area under the Coss vs. Vds curve at a given voltage and is sometimes given by the FET vendor in the data sheet. Eoss is not typically provided for Si FETs (more for GaN), so you may want to ask the FET vendor. In any event, you…
Hi Mark,
I'm not sure why WEBENCH isn't selecting FETs. The LM5146 is a 100V rated device, so 100V FETs should be fine.
If you can fill out the LM5146 quickstart calculator, I can review your design and recommend some FETs.
https://www.ti.com…
Hi Mitesh,
Please see link below to an app note that includes links to all of TI's web based technical information and tools. Under the tools section, you will find a FET selection tool for BLDC motor drive applications. This tool allows the user to input…
