Search tips
Showing 25 results View by: Thread Post Sort by
    Answered

  • RE: UCC2813-3: Oscillator and switching frequency

    Resolved
    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.…

  • UCC2813-5 schemetic review

    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…

  • RE: WEBENCH® Tools/UCC2813-3-Q1: IC not starting up

    Hello again! Parts arrived, so I made a few small changes: 1. Replaced the UCC2813 part with UCC2813QDR-2Q1 2. Replaced C11, the 6.8nF snubber cap, with a film cap 3. Added a 1.0uF capacitor in parallel with the output capacitors C19 and C24 ... R2+R3…

  • RE: UCC2813-0: Webench design transformer spice model

    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-…
    • Answered

  • IC number prefixes UCC UC TL SG meaning?

    Resolved
    Other Parts Discussed in Thread: SG2524 , UC28025 , UCC28950 , UCC2895 Dear All, I have two questions about IC numbers: 1) what is the meaning of prefixes, ie UCC, UC, SG, TL? ( for example SG2524 or UCC2813 ) 2) what is the meaning of digits after prefixes…
    • Resolved
    • Answered

  • Multi output Flayback design

    Resolved
    Other Parts Discussed in Thread: UCC28911 , UCC28740 , LM5023 , UCC2813-2 , UCC2813-0 , UC3842 , UCC2800 , UCC2802 , UCC28C42 , UCC28C43 Dear all. I think about the multi-output by flayback. (DC3.3V/450mA, DC15V/10mA, DC-15V/10mA, DC24V/30mA) Our customer made the…
    • Resolved

  • RE: UCC28740: High Vout design check

    Hello Edward, Based on this rather limited set of requirements, the tentative answer is YES. Can you please clarify if the input voltage Vin is AC or DC? If it is DC, then yes the UCC28740 can readily support that spec since the HV input is rated…
    • Answered

  • RE: Isolated DC-DC Converter for automotive

    Resolved
    Yaita, Here are some part numbers that appeared when I searched for your requirements. I recommend starting to look at UCC28600-Q1. Part Number TL2843B-Q1 UC2825A-Q1 UC2856-Q1 UC2856Q UCC25706-Q1 UCC2813-0-Q1 UCC2813-1-Q1 UCC2813-2…

  • Multi output flyback Powersupply -control loop

    TI Thinks Resolved
    Other Parts Discussed in Thread: UCC2813-1 Hi, I have designed Multi-output flyback power supply by using UCC2813-1 PWM IC, Input and output specifications are as follows Vinput- 16V-40V Vout-5V@5A,+15V@0.75A,-15V@0.75A Switching frequency -200kHz The converter…
    • Answered

  • RE: Low Input Voltage, Isolated DC to DC solution

    Resolved
    Hello Atul, The question of what is the "best" solution depends on your specific goals. Most often, "best" translates into simplest or cheapest. I suggest that you investigate using one of the UCC2813-x family of low-cost PWM controllers, specifically…

Didn't find what you are looking for? Post a new question.