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Reagan Li
2 months ago
Power management
Power management forum
TPS53311: TPS53311 unused SYNC pin
Resolved
Part Number:
TPS53311
Hi team, How to deal with the unused SYNC pin of
TPS53311
? Thanks! Reagan
Jim Tsai
2 months ago
Power management
Power management forum
TPS53311: fsw abnormal
TI Thinks Resolved
Part Number:
TPS53311
Hi, The PS pin is floating forced CCM mode. The fsw should be 1.1Mhz but I measured 600khz only. Please check attached schematic, thanks.
Weidong Zhu
4 days ago
Power management
Power management forum
RE: UCD74120: Generating CVDD of 1.1V for higher currents
Hi Binayak, Please see below my answers to your questions: (1): UCD74120 is a power stage. The output voltage is controlled by UCD9244. Please find the below equation in UCD9244 datasheet (page 14) on how to set output voltage, where Vref_cmd is the...
sah yonghan
over 9 years ago
Simulation, hardware & system design tools
Simulation, hardware & system design tools forum
TPS54617
Resolved
of tps54617, F(switching)=1.6Mhz. while applying the formula from
TPS53311
, I(ripple)=1/(LXSWITCHING FREQUENCY
David Robinson
over 7 years ago
Power management
Power management forum
RE: TPS40200 Must keep output switching off using SS Pin until 30 VDC input is available
Hello Anthony, Please provide the updated TPS40KType spreadsheet that you used prior to making the last recommendations for the compensation network values. Please see attached. David Robinson
TPS40KType III Loop Stability kVenable_sluc263c_DGR.xlsx
John Bottrill
over 8 years ago
Power management
Power management forum
RE: UCC3806 reference design and simulation model
Hello, The UCC3806 is a dual output controller though it can be used in a flyback where only one of the outputs are used to drive the switch it might be better to choose a single output controller. Look at page 46 of the attached under General Purpose...
Power management guide 2011.pdf
John Bottrill
over 8 years ago
Power management
Power management forum
RE: Low operating voltage version of a TL494?
Mark, see teh attached Power Management Guide Page 43 John
Power management guide 2011.pdf
John Bottrill
over 9 years ago
Power management
Power management forum
Re: Kindly, suggest me the controller for isolated DC/DC
Peter, i am enclosing the Power Management Guide for 2011. The section you will be interested in starts on page 43 and actual devices listed on page 46, With the minimum information you have given me I would expect that you will want something like...
Power management guide 2011.pdf
John Bottrill
over 8 years ago
Power management
Power management forum
RE: How to adjust output PWM of UC3825
Siyu, I think the toggle flip-flop in the block diagram on page one of the spec should have let you know that the max you will get with this device is 50% duty. Go to page 43 and 44 of the attached and select a more suitable part.
Power management guide 2011.pdf
John Bottrill
over 7 years ago
Power management
Power management forum
RE: PWM chip selection
Hi, I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria. As an example if you use a UC3842 it is...
2013 Power Management Guide.pdf
>
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