Andreas,
TI general purpose, current mode PWM controllers can be set up for VMC by feeding the RAMP into the CS pin and they are not topology specific so they can be used for flyback, forward, buck, boost, etc. Configuring a CMC for VMC is a feature detailed…
Hi Ajmal,
You can use pin to pin device UCC28C42-Q1, which has a Tj up to 125C.
Besides, you can also consider these devices such as UC1842, UC1842A,UC1843A, UCCx800, UCCx802, and UCCx803, UCC2813-0/-2/-3-Q,..........Maybe it needs a little circuit mod…
Part Number: UCC2813-0 Other Parts Discussed in Thread: UCC28740 HI sir
I want to design a AC-DC power that Spec is AC 200V~AC500V (3 phase power system)
output need isolator 3.3v/3A
ON semi suggestion the NCP1377
does the TI have the same function device…
Part Number: UCC2813-2-Q1 Other Parts Discussed in Thread: UC2842 Dear Sir,
could you help check Gain Margin and Phase Margin of UCC2813-20Q1?
please refer below specification and schematic(excel).
Specification is below
Input Voltage : 250Vdc~420Vd…
Part Number: UCC2813-0 Other Parts Discussed in Thread: UCC3813-0 , Dear, Sir.
My customer is considering to replace from UCC3813DTR-0 to UCC2813DTR-0,
also from UCC3813DTR-1 to UCC2813DTR-1.
I tried to read out the datasheet, but following are not clear…
Hi Jason
The UCC2813-2 has an internal clamp that tracks the UVLO turn-on level.
The UCC2813-2 needs to be powered through a series resistor which will limit the current into the Vcc pin and clamp circuit to less than 30mA.
The note 3, section, 7.1…
Part Number: UCC2813-5-Q1 Hi, I try to develop an isolated DC/DC with 9 - 32 V input and 12 V output with 3 A. If I decrease the input voltage under about 20 V, the output voltage is decreasing too. I think the problem is the current sensing of the controller…
Dear Ulrich Thanks for your quickly supports. I have test by your advice, but UCC2813 is not working. UCC2813 VCC voltage is under 4V yet. I will upload test data ppt file, Please check to file and inform to me the improvement in ASAP. Thanks and …
I just got back in to see if there were any comments added and noticed that schematic I cut and pasted is not showing up. I'm trying again by converting the Webench output to a Word document.
WEBENCH ® Design Report
Design : 14 UCC2813DTR-…
Part Number: UCC2813-1 Hello,
Regarding to Absolute Maximum Ratings on UCC2813-1, my customer is asking some question.
They are understanding that even if Vcc exceeds 12V(Absolute Maximum Ratings), it is no problem when Icc does not exceed 10mA.
Because…