Hi Sean,
Do you know the CISPR? It's a common requiament about safety for electromagnetic in the WW. In order to obtain the CE mark with CISPR approval, the electrical equipment must be irradiated with electromagnetic waves to prove that the equipment…
Part Number: UCC2894 Other Parts Discussed in Thread: UCC2897A In the datasheet, "UCC289x Current Mode Active Clamp PWM Controller datasheet (Rev. F)" Figure 18 shows the relationship between Vref and temperature. However, the y-axis values are incorrectly…
Part Number: UCC2894 Other Parts Discussed in Thread: UCC28C41 Hello,
Please let me know about start threshold voltage. I'd like to input 12-V for Vdd, this device need to input more than 13.5-V at start up. Why this device needs this condition?
Regards…
Part Number: UCC2894 Hi Team,
I received the below questions from a customer using our UCC2894 and faced some issues from the field. Can you help answer their below questions?
Any internal OTP embedded in the controller? Which may cause a controller…
Part Number: UCC2894 Hi,
I would like to ask you about the soft-stop feature of the UCC2894D. Even if the same off-sequence is taken in the actual machine, an overvoltage may or may not occur between the drain and source of the primary side main switch…
Part Number: UCC2894 Other Parts Discussed in Thread: UCC2897 , , UCC2897A Hi,
I previously asked about UCC2894D in the following thread. I would like to ask additional questions. (question 1) Is there any other documentation on the mechanism by which the…
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
Input Frequency…
Part Number: UCC2894 Hello,
This part will be use in a noisy environment, but the CS pin needs to have low to no noise for my application. How can this be achieved?
Part Number: UCC2894 Dear team,
As per the datasheet two formulas are fiven for the calculation of Ron, Roff and Rdel, One in page 8 and another in page 19. Both are giving different values.
Equation 1
Equation 2
Part Number: UCC2894 Other Parts Discussed in Thread: UCC2891 I wolud like to konw UCC2894's action (functional sequence, timing, some conditions etc) when shut down signal on SS/SD terminal from external signal soruce.
Please inform me any technical…