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  • RE: UC2825: Is there technical difference inside between Q1 and EP grade

    Hi Richard, I will close this post and we can continue by email. Regards Peter

  • UC2825: How the determine the duty cycle when I use a fixed

    TI Thinks Resolved
    Part Number: UC2825 When I used UC2825 as PWM to run half bridge converter to get 16V output. I made EA(pin1) connected to pin 3(E/A out). and Pin 2(EA NI) connected to reference pin 16 through 10K resistor. How can I determine what the fixed duty cycle…

  • UC2825: Higher frequency PUSH-PULL for GaN

    TI Thinks Resolved
    Part Number: UC2825 Other Parts Discussed in Thread: LM25037 With the apparent release of GaN, SiC, higher frequency ferrites and so on, I currently using UC2825 for push-pull power supply which work with wide range VIN (DC) with stable VOUT (buck-boost…

  • RE: UC2825B: Techinical Document on how to set up switching MOSFET

    Programming the frequency and dead-time is not in the "B" version of the data sheet but if you go back to the original UC2825 data sheet you can see below: UC2825 has programmable LEB as described in section 7.1 of the data sheet: Slope compensation…
    • Answered

  • UC2825: CT comparator reference voltage.

    Resolved
    Part Number: UC2825 Hi, One of my customers is using the UC2825 for PWM generation. He plans to use the ramp on the CT pin for the slope compensation. In the attached figure, the comparator reference voltage is not mentioned. I saw from the Oscillator…
    • Resolved

  • RE: UC2825B: Technical questions

    Aaron, I believe your customer is asking the same questions in a parallel thread here so I am going to close this one. We do not have a Spice model for UC2825 but we have a TINA model here . Regards, Steve

  • UC2825: Minimum Duty Cycle before Pulse Skipping

    Part Number: UC2825A Other Parts Discussed in Thread: UC2825 Hi E2E, My customer is using the UC2825A in a buck configuration: FETs switching at 150kHz Output filter frequency at 300kHz Duty cycle swing from 71% to 12% for wide input range The issue…

  • UC2825 Thermal Information

    TI Thinks Resolved
    Other Parts Discussed in Thread: UC2825 Hi My customer did not find the Thermal Information of UC2825. Could you provide the information of the RθJA, RθJC(top),RθJB. Thanks

  • UC28025: What is the lot-to-lot tolerance for Maximum Duty Cycle Limit (UC28025 or UC2825), in terms of Duty cycle (%)?

    Part Number: UC28025 Other Parts Discussed in Thread: UC2825 What is the lot-to-lot tolerance for Maximum Duty Cycle Limit (UC28025 or UC2825), in terms of Duty cycle (%)? In other worlds, for the same RT and CT, if I change the IC on the same board,…
    • Answered

  • PFM design for UC2825

    Resolved
    Other Parts Discussed in Thread: UC2825 , UCC25600 Hi Team, My customer considers to design not PWM mode(fixed frequency) but PFM mode with UC2825. He considers to input external Ramp signal to Ramp pin and not using internal OSC as the following schematic…
    • Resolved

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