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I don't have the exact part number to check

Mustafeez ul Hassan
Prodigy 20 points

Hello dear concerned,

I am a graduate student at Stony Brook University looking for some flyback controllers. I found numerous of them on your website but I was particularly interested in CMOS based controller. Can some one from design department me help me over this? Thanks in anticipation

  • 0
    TI__Genius 9790 points

    Hi, there

    what is your spec of Flyback converter. there is different controllers for different input/output spec. 

    Yunsheng

  • 0
    TI__Mastermind 32975 points

    Hi,

    Any single-ended (one OUT) general purpose PWM controller can be used to control a flyback power stage. Here are some tips on understanding part numbers:

    1. Part numbers beginning with U are TI/Unitrode devices, LM are TI/National devices and TL are TI legacy devices
    2. UC are bipolar process, UCC are BiCMOS process
    3. UCCx, where x is 1, 2 or 3 indicates the temp grade of the controller: 1(military grade)=-55C<T<125C, 2(industrial grade)=-40C<T<105C, 2(consumer grade)=0<T<70C
    4. UCCx8/5, where 8=current mode control, 5=voltage mode control
    5. Where you see a "Q" at the end of a part number indicates the device is AEC-Q100, automotive compliant

    UCCx8C4y is an industry standard BiCMOS, current mode control PWM. the "y" indicates various UVLO options and 50% vs 100% duty cycle options. Here is the link to the product folder where you can download the datasheet along helpful supporting collateral such as app notes, sim models, etc. Good luck with your design and thanks for reaching out on E2E.

    Regards,

    Steve M

  • 0 in reply to Steven Mappus1
    Prodigy 20 points

    Thanks Steve for the reply.
    I was particularly interested in CMOS based ICs as dictated by my design. May I get some information about CMOS based designs? Does LM means the fabrication process is CMOS based? Please comment on this as well. Thanks in advance

  • 0 in reply to Yunsheng Qu
    Prodigy 20 points

    Thanks for replying Yunsheng,
    I am looking for controller with nominal input around 20-50 V whereas output around 9-12 V. I am particularly interested in CMOS based controllers. Please recommend CMOS based ICs. Thanks  

  • 0 in reply to Mustafeez ul Hassan
    TI__Mastermind 32975 points

    I am most familiar with UC devices. I believe the LM PWMs are manufactured on BiCMOS process, though there may be examples of older PWMs that are bipolar.

    Steve