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  • UCC2893: unencrypted Spice Model

    T Kishi
    T Kishi
    TI Thinks Resolved
    Part Number: UCC2893 Other Parts Discussed in Thread: TINA-TI Hi My Customer has question. Customers need an unencrypted model to simulate with SImetrix / SIMPLIS. Is it possible to offer it? Please check if there are any necessary conditions for the offer…
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • UCC2893: Maximum Ambient Temperature

    Ron Barretto
    Ron Barretto
    Resolved
    Part Number: UCC2893 Hi E2E, Good Day! We just wanted to check the maximum ambient temperature it can have? Based on the datasheet, page 2 http://www.ti.com/lit/ds/symlink/ucc2893.pdf temperature is -40 to 125 degree C But on the website, http://www.ti.com…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS7H5003-SP: About the difference of the Active Clamp Flyback between UCC289* and TPS7H000*

    Tak
    Tak
    Resolved
    Part Number: TPS7H5003-SP Other Parts Discussed in Thread: UCC2894 , UCC2893 , UCC28780 We'd like to adopt the flyback converter with PWM active clamp. So far , we are used UCC2893 or UCC2894 . At happens , we found the TPS7H000*. We can design active…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • RE: UCC28782: What's the difference between UCC28780 and UCC28782 ?

    Harish Ramakrishnan5
    Harish Ramakrishnan5
    Resolved
    Hi Tak-San, Thank you for the reply. Question 2) I think from your input voltage specification of 85 to 264Vac and using TPA3251 I assume power level around 160-220W for your application. So UCC28780 should be good for this power levels. Are you generating…
    • over 1 year ago
    • Power management
    • Power management forum
  • UCC2894: Bias Power Supply for UCC2894

    Umamaheswararao Vuyyuru
    Umamaheswararao Vuyyuru
    TI Thinks Resolved
    Part Number: UCC2894 Other Parts Discussed in Thread: UCC2891 , UCC2893 , UCC2897A Hi Sir, As per the datasheet of UCC2894, Vdd supply is taken from the output side filter inductor, the screenshot is give below for the quick reference. Can we take the…
    • over 2 years ago
    • Power management
    • Power management forum
  • UCC2893 Active Clamp Forward Efficiency Problem (<80%)

    guilherme.muller
    guilherme.muller
    Other Parts Discussed in Thread: UCC2893 , UCC2897A , TPS2410 Hi, My name is Guilherme Muller and I’m developing a step-down SMPS using UCC2893 from Texas. My benchmark is ~90% of efficiency, so I’m using an active clamp forward converter with synchronous…
    • over 12 years ago
    • Power management
    • Power management forum
  • ucc2893 duty ratio problem

    10053055
    10053055
    Other Parts Discussed in Thread: UCC2893 , TL431 I design specifications of DC to DC isolate forward and used high-side N Channel is as follow: input voltage: 100V output voltage: 12V output current: 0A~10A switch frequency: 100kHz duty ratio maximun : 0.45 …
    • over 12 years ago
    • Power management
    • Power management forum
  • RE: UCC2897A: solution select

    Eric Reicher
    Eric Reicher
    Hi Denny, The UCC2897A has the following summary and 20-pin TSSOP pinout The UCC289x family has the following summary and 16-pin TSSOP pinout I would recommend either the UCC2891 (P-channel clamp) or UCC2893 (N-channel clamp) because they both offer…
    • over 3 years ago
    • Power management
    • Power management forum
  • RE: UCC28780: Need device suggestion

    Ulrich Goerke
    Ulrich Goerke
    Hello Mitesh, Thank you for your interest in TI's active-clamp controllers. The UCC28780 can work at the higher voltage of your range, but is likely to have trouble at the 14-V end. Notably, it needs at least 17.5V to start (actually 18.2V max). …
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • UCC2891: Secondary-side regulation

    Omar Mercado
    Omar Mercado
    Resolved
    Part Number: UCC2891 Other Parts Discussed in Thread: , , UCC2892 , UCC2893 , UCC2894 Hello! Can I use your UCC2891X with Secondary-side regulation? I do not have auxiliary winding and would like to power the IC from the primary winding and use an optocoupler…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
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