Part Number: UC2875 Tool/software: Hello,
I have a question regarding UC2875DWP.
Typically I was measuring ~231kΩ between SLOPE pin 26 and GND pin 28. However, I recently measured a value of ~207kΩ, about a 10% difference.
Requesting for the tolerance…
Part Number: UC2875 Hello,
I'm contacting you to get advice on the best approach to route PWM signals (GND ground, signal length, component placement, …). I use it in current mode with slope compensation.
Here you can find the picture of the schematic…
Part Number: UC2875 Other Parts Discussed in Thread: UCC28950 Hello,
In the context of electronics subject to radiation, I must use the UC2875 in the current mode with slope compensation.
The datasheet doesn't give enough information about the current…
Hi Experts,
Good day.
Hope you can help us. Were having a hard time comparing the three GPNs phase shift resonator controller. This info sheet ( LINK ) is not clear in comparing those devices.
Maybe in the screening process or the engraving technique…
Part Number: UC2875 Other Parts Discussed in Thread: UCC28951 , UCC28950 Hello,
I would like to use the UC2875 in Current Mode with Slope Compensation? I found in the component datasheet how to use it in voltage mode, and how to use it in current mode…
Part Number: UC2875 The data sheet doesn't give any specifications for this signal, but page 10 shows a very short pulse driving a pull-up FET. Page 14 also shows very short clock pulse. Can you tell me if this signal is required to be this short? if…
Part Number: UC2875 How to choose resistance and capacitance of the FREQSET pin? There is no formula for frequency calculation in the manual. For example, I need 35kHz. In addition, the chip in the 50 degree environment, the frequency will be reduced…
Part Number: UC2875 Other Parts Discussed in Thread: UCC3895 , UCC28951 About UC2875 datasheet P7 is described the relation of oscillator frequency, Rt, and Ct.
Please let me know about calculation method for oscillator frequency (with Rt, and Ct).…
Part Number: UCC28951 Other Parts Discussed in Thread: UC2875 ,
Tool/software:
hi,
we are replacing UC2875 with UCC28951 as unique option.
For our product, we absolutely need a controller that can operate at a switching frequency of 20 kHz, while…
