Part Number: UCC28742 Hello guys,
One of my customers is considering using UCC28742 for their next flyback power supply.
At this moment, they have the following question. Could you please give me your reply?
Q. We don't need to isolate between primary…
Part Number: UCC28742 Other Parts Discussed in Thread: UCC28740 , , PMP
Team, -Brown-out: With both UCC28740 and UCC28742 controllers, a brown-out function can be set via the resistors on the VS pin. Do we have more information on the Brown-out function…
Part Number: UCC28742 Other Parts Discussed in Thread: UCC28600 , LM5023 , UCC28781 Tool/software: Hi team,
My customer wants to find a device with below feature.
1. Flyback
2. 300k working frequency
3. output power support to 65W
4. driver…
Part Number: UCC28742 Tool/software: I have been using UCC28742 IC for power switching, also using XZM-E30091 transformer for stepping up voltage. However, still I am not getting desire output in circuit like a 1000V.
Part Number: UCC28742 I'm trying to design a flyback converter with powdered iron core. Is there a way to reduce core losses, as it will impact in RE and CE testing for my product. I have no choice but to use powdered iron core because I have a magnetic…
Part Number: UCC28742 Tool/software: Problem Summary:
Despite building multiple prototypes, I'm encountering persistent issues with my power supply design. The primary challenges are:
No output voltage: The power supply fails to generate the expected…
Part Number: UCC28742 UCC256402 Other Parts Discussed in Thread: UCC28950 , UCC28251 , UCC2894 , UCC256402 , UCC25640EVM-020 , UCC25640
Tool/software:
Hi,
I am designing a Power supply having following parameters:
Input Voltage: 85VAC - 265VAC…
Part Number: UCC28742 Other Parts Discussed in Thread: UCC28740 Hi,
can I design (inductance and transformer turns ratio) the UCC28742 to run at 100KHz? The first page in the d/s mentioned 80KHz.
Regards, Holger
Part Number: UCC28742 Documents share with TI.zip 5758.photo.zip
原理图、PCB图和测试设备都在附件中。当用隔离探头同时测量UCC28742控制的MOS管的Vgs和Vds时,电路板爆炸。请解释和分析这一现象。注意:在PCBA中使用其他品牌的电源管理芯片时,不存在这种现象。
Part Number: UCC28742 Other Parts Discussed in Thread: TL431 , UCC28740 , Hello TI,
As the title suggests, I have encountered some problems with my design. I was trying to build a Flyback DC-DC Converter for a project at my university, but for some…