Part Number: UCC2813-5-Q1 Hi team,
Can you please check what is the thermal performance of UCC2813-5-Q1? The datasheet is too old it did not show any RθJA or RθJC, can you provide thermal information for UCC2813-5-Q1 in tabular format:
Many…
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…
Part Number: UCC2813-5-Q1 Hi
in datasheet, there is no this information, could you provide the Tj range of the Absolute Maximum Ratings and Tj range of Recommended Operating Conditions?
thanks.
UCC2813QDR-5Q1
Part Number: UCC2813-5-Q1 Hi there,
During testing it has been found that the switching frequency is half of what is expecting (expect 300KHz, have got 150KHz).
In document SGLS245D have got
Also, in SLUS161E we have found this note
Now I have 100pF…
Other Parts Discussed in Thread: UCC2813-5 , TLV431 , UCC2813-1 , UCC2813-4 Dear all
I will develop the product using UCC2813-5. (Input : AC 50V or DC 50V +/- 30% OutPut : 5V / 12A (60W) A circuit diagram based on the circuit proposed by TI Webench has been…
Hi! OK I tried a couple of things.
First, I replaced C13 from 120uF to 200uF; it didn't seem to have any impact.
Next, I removed D5 and R3, and powered the UCC2813 from a benchtop supply (10V, current limited to 50mA). I applied AC and then powered…
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…
Zhou,
For the UCC2813-0, UCC2813-2 & UCC2813-3, Dmax = 100%, for these versions OUT pin Fsw= Fosc.
For the UCC2813-1, UCC2813-4 & UCC2813-5, Dmax = 50%, implemented using an internal toggle flip-flop. So for these versions, Fsw = 0.5 * Fosc.…
Hi Michael,
The UCC28C4x and UCC2813-x devices are normally used in secondary side regulated designs which use a TL431 and opto-coupler to feedback the error signal.
In these designs it should be possible to get better than +/-5% total regulation of the…
