Part Number: UC2844
Hello,
I have a power supply with PWM control, and I am encountering an issue where the input voltage fluctuates between 10V and 16V. However, it needs to be consistently at least 16V. Can you provide insights into what might be causing…
Part Number: UC2844 Hi expert,
Customer is using UC2844 for Flyback (220Vac/ 340V-810Vdc input to 24Vdc output, 1A~4A output, 86kHz fsw) use case but met thermal issue. When ambient temperature around 20℃, UC2844 will reach ~90℃ with thermal risk, SCH…
Part Number: UC2844 Other Parts Discussed in Thread: SN74LV125A About safety certification process in China:
Hello TI Experts, I did safety certification process in Germany and last year I experienced the similar safety certification in China, which dived…
Part Number: UC2844 Hello,
My customer is testing the UC2844N on a board they designed with the conditions below.
- specification : 220VAC±20% Input, 28V/3A output, Effi 85%
- Switching frequency : 70kHz
- Topology : Flyback
- Control IC :…
Part Number: UC2844
Hello,
My customer is encountering noise issues while testing a flyback converter designed using UC2844N.
They would like to discuss this issue privately with TI.
If technical support is possible privately, please send an email to…
Part Number: UC2844 Hi
It formed Flybeck with UC2844.
What is the OCP operation of UC2844?
If you raise the current, the voltage drops, is this right?
Thanks
Part Number: UC2844 Hi
When starting the VCC voltage, it is found that the VCC terminal voltage is basically equal to the input voltage of 100V, and the normal VCC end has a voltage regulator clamp, which should not be 100V
Part Number: UC2844 Hi team
Could you explain the role of the portion circled by red below? And could you also explain how this figure 8-13 works?
Regards,
Noriyuki Takahashi
Part Number: UC2844 Dear team,
What is the rated power of this TVS diode? Customer is doing Safety function by calculating how much voltage will damage the push pull output of UC2844.