Part Number: UCC35705 The datasheet states that the device is a voltage mode 4MHz PWM controller but the oscillator is only spec'd to 1MHz.
Where does the 4MHz come from?
Thanks
Other Parts Discussed in Thread: UCC35705 , TL431 how can i set the output voltage of my converter using this IC(UCC35705)?What's i have to connect at the FB pin, the output of an error amplifier or the output voltage? i can't understand where is the…
Hi Jerry,
The UCC35705 is a high speed PWM controller and can run at up to 4MHz, http://www.ti.com/product/UCC35705
Hopefully this will be suitable for your application.
Regards
Peter
Hi Jeyaprakash
I do not see any PSPICE model for the UCC25706,UCC35705,UCC35706 devices either ?
Have tou found a model for these parts outside of TI?
Regards
Peter
Hi Kensuke-san,
The UC2825 is an older device based on bipolar process, the UCC35705 is a newer device with a 4MHz Fmax with voltage mode control.
Regards
Peter
Hello Chun Hung,
Thank you for your interest in the LM5021 PWM controller.
This device is designed specifically as a peak-current mode controller and cannot be easily adapted to voltage-mode.
Instead May I suggest for you to consider one of these…
Part Number: UC3843 I need support about the choice of the right controller for a high power (2kW) step-down converter with adjustable output voltage. The application is DC Variac (chopper).
- Topology is: non-synchronous buck
- The goal is to control…
Other Parts Discussed in Thread: UCC35706 Hi,
I am Trying to make one DC to Dc convertor with UCC35706, strangely all the four devices I had is gone bad ie PIN 3 Vff shows zero Volt.
The schmatic design is taken from another working design. Its…
Hello,
The UCC3806 is a dual output controller though it can be used in a flyback where only one of the outputs are used to drive the switch it might be better to choose a single output controller. Look at page 46 of the attached under General Purpose…
