Part Number: UC3854 Hello, customer is searching for a drop-in-alternative (or ptp) for the UC3854DWTR. Can he use the UC3854A? What are the differences?
Regards, Holger
Part Number: UC3854A Hi John,
I saw my customer engineer Xu hong in US contacted with you in E2E, Since Xu hong is my customer engineer he didn’t buy TI parts but checking for technical issues, I guess he didn’t talk to you about the orders I placed to…
Hi John,
The app note is also officially published by TI. It suggests designers to double the input current from 250mA to 500mA. And also, please check all your typical application circuits, all are using 500-600mA range. Can you please tell me why?
By…
Part Number: UC3854A Hi John,
I saw my customer engineer Xu hong in US contacted with you in E2E, Since Xu hong is my customer engineer he didn’t buy TI parts but checking for technical issues, I guess he didn’t talk to you about the orders I placed to…
Part Number: UC3854A Other Parts Discussed in Thread: UC3854 , UCC28180 , Hi,
In application note of UC3854, I read that this IC can also be used to configure Buck converter.
Please can anybody let me know how to configure it for the same & what modifications…
Part Number: UC3854A Other Parts Discussed in Thread: UC3854 , Hello
how to make use of uc3854 for three phase pfc? any reference designs?
thanks
samrat
Other Parts Discussed in Thread: UC3854A Hello. I am using UC3854A for 2500W PFC. I have encountered a problem of large current peaks on zero-cross. The amplitude of peaks depends on the value of Rmo & Rci - the larger the value, the larger the amplitude…
Part Number: UCC28070 Other Parts Discussed in Thread: UC3854A , CURRENT SYNTHESIZER
The equation for the current synthesizer resistor R_SYN does not include the output voltage. Does the circuit get the output voltage information from the VSENSE pin? If…
Other Parts Discussed in Thread: UC3854A , UC2854 Hi genius,
AC/DC boost converter with PFC controller.
Input : 180-270Vac
Output Power = 6kW
Output voltage = 400 vdc
Output Load = 15A
PFC controller chosen = UC3854a
My question is, How i sense the current…
Part Number: UCC28070 Other Parts Discussed in Thread: UC3854A According to the data sheet, when VINAC is not at the value corresponding to the kVFF for that range, the voltage error amplifier compensates by raising or lowering its output voltage VAO…