Part Number: UCC28740-Q1 I want to design a two switch flyback (400V-15V 1.5A).I have come across the IC UCC28740-Q1.But the maximum switching frequency of this IC is found to be 100Khz.We need a bit higher swicthing frequency.Could you suggest any alternate…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 , Hi,
I want to use SiC mosfet as primary side switch. UCC28740-Q1 is designed to drive only Si mosfet gates directly. When I try using a separate gate driver IC or a push-pull gate drive…
Part Number: UCC28740 Hello,
The minimum voltage for Start-Up with UCC28740 is mentioned as 100 V in the Data sheet but for our application we would want it to start at a lower voltage. Would it be possible to do that ?
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 Hi,
I tried simulating the UCC28740 simplis netlist provided on the product page. Although the model says that it can work with the simplis versions higher than 7.2d, while running in 8…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 , UCC28730 , UCC28742 Hi all,
Is there an Ltspice or pspice model available for UCC28740. On the product page I could find only a Simetrix/Simplis model which is not easily convertible to…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 Hi team,
My customer ask for training for this device, so could you provide presentation material with flyback topology introduction for us?
Then we can support this request.
Other Parts Discussed in Thread: UCC28740-Q1 Hi,
1. Is there any flyback controller IC that can be used for 2switch topology directly?
2. What is the most reliable way of driving the high side mosfet if I use a 1-switch flyback controller like UCC28740…
Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28740 , UCC28730 , UCC28740-Q1 Hi,
the data sheet of the UCC28740 suggests to use two capacitors to allow start up from high voltage for voltages above 700Vdc. Why is this not included in the data…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 Hi Champ,
My customer wants to control ON/OFF of UCC28740-Q1 Flyback circuitry from MCU GPIO.
Could you check if QA_UCC28740_ONOFF.xlsx schematic in attached xlsx file is feasible?