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Showing 46 results View by: Thread Post Sort by
  • UC3525A: 3k at the shut down PIN?

    Andres Miguel Machara Chomiak
    Andres Miguel Machara Chomiak
    TI Thinks Resolved
    Part Number: UC3525A Hello all, I'm just curious about the series resistor in the 10 input pin. Why in some parts of the datasheet of the UC3525 is shower a 3K, and in others you can see a 5K resistor? Could be a mistake? Thanks!
    • over 3 years ago
    • Power management
    • Power management forum
  • UC3525A: Push-pull mode to parallel mode (single ended)

    Andres Miguel Machara Chomiak
    Andres Miguel Machara Chomiak
    TI Thinks Resolved
    Part Number: UC3525A Hello all! Last week I asked to your support team about Figure 10 of the UC3525 datasheet. I was worried about how this circuit could work and I asked for a example. Without answers. See, in a first sight this circuit converts…
    • over 3 years ago
    • Power management
    • Power management forum
  • UC3525A: the different between UC3525A & UC3525B

    Red Yen
    Red Yen
    TI Thinks Resolved
    Part Number: UC3525A Other Parts Discussed in Thread: UC3525B , Hi Support team May I know the the different between UC3525A & UC3525B
    • over 5 years ago
    • Power management
    • Power management forum
  • UC3525A: output A & B of UC3525A

    Chun Hung Chen
    Chun Hung Chen
    TI Thinks Resolved
    Part Number: UC3525A Hi TI team I'd like to know output A & B of UC3525A. Are they reverse each other, or phase difference angle?? I want to combine the two output to achieve a 99% duty cycle. Could it be possible? Thanks
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • UC3525A: Absolute maximum ratings for SHUTDOWN pin

    Hisao Uchikoshi
    Hisao Uchikoshi
    Resolved
    Part Number: UC3525A Hi Experts, My customer is asking about abs max of SHUTDOWN pin. I am guessing it is max 5.5V (logic input) but please let me confirm because SHUTDOWN pin is the base of internal NPN transistor which requires the bias current…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • RE: UC3525A: Error Amplifier on UC3525

    Aidan Davidson1
    Aidan Davidson1
    Hi Can! Thanks for reaching out! The error amplifier on the UC3525A is not an OTA. You can use type 3 compensation with a full bridge converter using the UC3525. Here are a couple documents to help you get started: Compensation Made Easy and Demystifying…
    • over 5 years ago
    • Power management
    • Power management forum
  • RE: UC3525A: PWM Ramp Voltage

    Teng Feng
    Teng Feng
    Hi Can, The RAMP current can be approximately calculated by VREF / RT. Thank you.
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • UC3525A: Regarding RT, CT and RD

    Michiaki Tanii
    Michiaki Tanii
    Resolved
    Part Number: UC3525A Hi team, Could you kindly advise the below inquires form customer ? 1. Why the charge time at CT 0.1uF in Fig 1 is longer than at CT 0.02uF ? It seems the number of CT get be smaller and smaller and charge time get be longer as…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • RE: UC3525A: UC3525A

    Colin Gillmor
    Colin Gillmor
    Eamonn - How are you !!! - long time no see and welcome to the TI e2e forum ! Anyhow - to answer your question The duty cycle isn't a strong function of input voltage so if the design was working ok over the 3 to 60V range the duty cycle shouldn't…
    • over 8 years ago
    • Power management
    • Power management forum
  • UC3525A: Low Cost High Current Buck Converter

    Mike Miles52
    Mike Miles52
    TI Thinks Resolved
    Part Number: UC3525A Other Parts Discussed in Thread: MC34063A , , LM5119 , PMP10979 , LM25119 Hello, I need to design a buck converter that will limit the voltage in an automotive-type dc system. The input may be from 11 to 15 volts; the output should…
    • over 5 years ago
    • Power management
    • Power management forum
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