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Showing 18 results View by: Thread Post Sort by
  • John Griffin1
    John Griffin1
    • over 5 years ago
    • Power management
    • Power management forum

    RE: PWM Controller

    I suggest that you consider using the UCC38C43 in a flyback topology
  • XY
    XY
    • over 4 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum

    UCC38C43D Pspice model questions

    • Resolved
    Hi there, I attempt to use UCC38C43 Pspice model in Cadence Pspice for flyback power circuit
  • Bernard Keogh
    Bernard Keogh
    • over 4 years ago
    • Power management
    • Power management forum

    RE: UCC38C43D power consumption question

    Yi Xiao, You need to know the total gate charge of the external FET connected to the OUT pin to be able to estimate the total bias current. This is the same method for the PWM IC and for drivers. For the UCC38C43, the typical bias current is 2.3...
  • Kening Gao
    Kening Gao
    • over 4 years ago
    • Power management
    • Power management forum

    RE: UCCx8C4x - soft start application

    Hi Mark, Here are my suggestions. 1) and 2)Please refer to slua257 for the comparisons between UCCX8C4X and UCX84X, and the differences of parts of UCCX8C4X families www.ti.com/.../slua257.pdf UCCX8C4X is pin to pin compatible with UCX84X. Below...
  • Kening Gao
    Kening Gao
    • over 3 years ago
    • Power management
    • Power management forum

    RE: UC3843A: UC3843A spec issue

    Hi Cao, I think you could see TI's UCC38C43 which has 50uA typical startup current also. The TI's UCC38C43 , UC3843 and other vendor's XX3843 are pin to pin compatible however they have small difference in particular items such as startup...
  • Kazuya Nakai59
    Kazuya Nakai59
    • over 5 years ago
    • Power management
    • Power management forum

    UCC3961/UCC38C43 Reference Design (PR127A) oscilator frequency

    Hi guys, I am concidering to use AC-DC converter application circuit of the following. http://www.tij.co.jp/jp/lit/ug/sluu142/sluu142.pdf I'd like to know how to calculate what UCC38C43 osccilation frequency is in the application circuit. ...
  • Vijay Phadke
    Vijay Phadke
    • over 5 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum

    Simulation model for UCC28C43

    • Resolved
    I am not able to run the simulation model of UCC38C43 in SIMETRIX. Currently, I am using UC3843
  • Brian Berner
    Brian Berner
    • over 9 years ago
    • Power management
    • Power management forum

    Re: UC3843 but with soft start option

    Calum, I did a parametric search and tried to match all of the features of the UC3843 and I came up with the UCC38C43 (a line of parts was developed to be pin2pin compatible with the UC384x line). The datasheet has a note about using soft-start...
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