Part Number: TIDA-01505 Hello,
My customer would need to design a flyback very similar to TIDA-01505.
he has one question open about the TI Design: what the current mode over the entire input voltage range, load ? the user guide indicates the transformer…
Hi Songzhen,
I just checked the reference designs which we have online and there is one which looks close to your requirement.
TI Reference Designs Library
https://www.ti.com/tool/TIDA-01505
Best regards,
Stefan
Part Number: TIDA-01505 As suggested, the R58 connection was moved to VDD Node & Changed the total resistor value of R38+R40+R42+R43+R45+R46 to 15K to enable the Self start up to avoid connecting the +20V & -5V externally. However this didn't work. Could…
Part Number: TIDA-01505 Other Parts Discussed in Thread: UCC28700 , UCC28700-Q1 , , UCC28C43 , UCC28C43-Q1 Hello,
I has identifie annoter part (UCC28700) which the start up circuit is integrated inside this component.
Can you confirme me if it's possible…
Part Number: TIDA-01505 Hello,
I designed the flyback DC/DC power supply according to TIDA-01505. The only big difference is the output voltage 28V/2A, not 15V/4A like in app note. Because of that secondary windings are connected in serial, not parallel…
Part Number: TIDA-01505 Hello,
in the datasheet of TIDA-01505, it's indicated that the minimimum required start-up current is 103mA. With current of 103mA and Vin_min 50V, we obtain a resistor of 313ohms but in your, you use six resistors of 50ohms, what…
Part Number: TIDA-01505 Hello,
We developed a PCB based on latest gerber files of TIDA-01505. In the PCB there is a 3 pin header J14 in which it is mentioned to input Level Shifter Power Supplies +20V & -5V. Please confirm whether the we need to provide…
Part Number: TIDA-01505 Other Parts Discussed in Thread: UCC28C43-Q1 Hi,
1) I assume that this IC (UCC28C43-Q1) is a fixed frequency (based on RT/CT external values). How the duty cycle is getting varied in this device. Please provide the graphs which…
Part Number: TIDA-01505 Hi, Is it possible to use the TIDA-01505 reference design for an output voltage of 24V, 4-5A instead of 15V, 4A? Can you please suggest the changes required in the reference design for the same including the proposed transformer…
Part Number: UCC28C43-Q1 Other Parts Discussed in Thread: TIDA-01505 Hello,
for a DCDC converter design we use this TIDA-01505 as Reference. IC and transformer are the same.
After anaylsing the design description and datasheet a few Questions are still…