Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Q1: Why Rs2 is not present in below formula? I think Ivsl(run) go both RS1 and Rs2, isn't it ?
Q2, I am doing the design from DC input and the VIN(min) is as low as to 50V,output is…
Part Number: UCC28730-Q1 Hi,
Q1: I don't understand why Dmax is derived at fmax? From below formula, the duty cycle is minimum when switch frequency is maximum, isn't it?
:
Q2: I don't understand the principle why Dmagcc is fixed internally…
Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 , PMP22557 , , TPS40210 , TPS40210-Q1 Dear TI e2e Team, We got the reference design from evaluation board (PMP22557) with part number of UCC28730. In that design given input voltage range is…
Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 , UCC24650 , Every schematic I see with the UCC28730 always has a wake-up UCC24650 on the secondary side.
Is this needed? Will the flyback work without it?
For example if I have a diode,…
Part Number: UCC28730 Other Parts Discussed in Thread: UCC24650 , UCC28740 , UCC28742 Hi,
I have designed a 10 W Flyback-Converter with 3 Outputs with a Inputvoltage of 60-1000V and an Outputvoltage of 15V. I am now trying to put the PCB in operation, but…
Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Hi team,
My customer would like to us know if UCC28730-Q1 can be used as HV redundancy flyback for input range from 40V to 880V?
Also can this flyback controller be configured for multiple…
Part Number: UCC28730 Other Parts Discussed in Thread: UCC24650
Hello I tried looking around at some previous forum posts and SLUAAC5 "Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips" ( https://www.ti.com/lit/an…
Part Number: UCC28730 Other Parts Discussed in Thread: UCC28600 , LM5023 , UCC24650 Hello:
We have several highly compact designs using UCC287xx family.
One of them currently being tested is UCC28730. We used the Web Bench & the Excel Spreadsheet.
…
Part Number: UCC28730 Hello - we are designing a 15W, 12Vout, DCM flyback using the UCC28730 controller.
The Vs pin is specified at -0.75V to 7V.
I am wondering about the -0.75V spec. Typically the aux voltage feeding Vs will be significantly less than…