Other Parts Discussed in Thread: TPS61040, TPS61085, TPS61087, TPS61023, TPS61170
I am posting this on behalf of our customer regarding their situation with the different results in the circuit products by Webench design.
Here is the statement of the customer:
Same design was run on webench on 2 different dates this year (May and August). August report now produces much worse results. Pd of controller jumps from 18mW to 50mW for exact same design! efficiency drops from 90% to 82%.. We built this circuit and its efficiency is ~80%. not what we were designing for. what's going on? Are the specs for the FET in the controller worse than what's been modeled in webench?
What is the source of this difference?
Is it a webench error or an error in the part’s datasheet?
Here's the comparison table of the customer in the same design:
Also, please see this pdf attached for the two the same designs of the customer:
WBDesign 6.5V 50mA 82.4%.pdfWBDesign_6.5V_50mA_85C (1).pdf
Please let me know if you have any questions for the customer.