• UCC25800-Q1: Simulation error keeps coming when i tried to simulate UCC21551 with UCC25800

  

  Swathin ES

  TI Thinks Resolved

  Part Number: UCC25800-Q1 Other Parts Discussed in Thread: UCC21551 , UCC25800 Tool/software: Hi , i was trying to simulate the UCC21551 gate driver section with UCC25800 as power supply to it, Ucc21551 part was working but we i tried integration with UCC25800…

  • 1 day ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• UCC25800-Q1: UCC25800-Q1

  

  PRATEEK SINGH

  Resolved

  Part Number: UCC25800-Q1 Other Parts Discussed in Thread: UCC25800 Tool/software: On page no.31 of the datasheet of UCC25800-Q1, the value of parasitic capacitance at pin SW is mentioned as 170pF. Is this the parasitic output capacitance value across…

  • Resolved

  • 2 months ago
  • Power management
  • Power management forum
Answered

• UCC25800-Q1: DIS/FLT fault monitoring and response

  

  Sivakumar Ganesan

  Resolved

  Part Number: UCC25800-Q1 Tool/software: HI, I need one clarification on Fault code monitoring. From datasheet, DIS/FLT is active low pin and once the fault is detected it will give 10us pulses. here my questions is, do we get the 10us pulses continuously…

  • Resolved

  • 15 days ago
  • Isolation
  • Isolation forum

• UCC25800-Q1: Turns ratio calculation for the LLC converter transformer.

  

  PRATEEK SINGH

  TI Thinks Resolved

  Part Number: UCC25800-Q1 Tool/software: On page no. 30 of the datasheet, the turns ratio calculation shown for the design process of the LLC converter's transformer, the formula includes the voltage drop of both the diodes of the output rectifier instead…

  • 2 months ago
  • Power management
  • Power management forum

• UCC25800-Q1: IC not operating as an LLC

  

  Thiago Benvegnú

  TI Thinks Resolved

  Part Number: UCC25800-Q1 Other Parts Discussed in Thread: PMP40980 Tool/software: Hello! I'm using UCC25800-Q1 in an application similar to this: ( Bias Supply Design for Isolated Gate Driver Using UCC25800-Q1 (Rev. A) (ti.com) - Page 17) ISSUE: The…

  • 3 months ago
  • Power management
  • Power management forum
Answered

• UCC25800-Q1: TSD behavior

  

  Hirotsugu Kobayashi

  Resolved

  Part Number: UCC25800-Q1 Tool/software: Hi team, When TSD occurs, will it behave as shown in the attachment? Best regards,

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum
Answered

• UCC25800-Q1: Adding an external thermal protection circuit

  

  Taroimo

  Resolved

  Part Number: UCC25800-Q1 Other Parts Discussed in Thread: UCC25800 Tool/software: Dear TI team I would like to confirm something about the UCC25800-Q1. I am considering adding an external circuit to protect this device from overheating. The DIS/FLT…

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum
Answered

• UCC25800-Q1: Need clarity in OCP1 settings in UCC25800-Q1

  

  jesica N

  Resolved

  Part Number: UCC25800-Q1 Other Parts Discussed in Thread: UCC25800 Tool/software: Hello, I am using UCC25800-Q1 as a part of my design for LLC resonant converter. I am using 18K and 15K with tolerance 2.5%. The OCP1 threshold setting depends on this…

  • Resolved

  • 7 months ago
  • Power management
  • Power management forum
Answered

• UCC25800-Q1: Fsw vs. Resonant frequency

  

  Yuto Kitamura

  Resolved

  Part Number: UCC25800-Q1 Tool/software: Dear team, I see the operation wave form with fsw = f_res and fsw < f_res on Figure 9-6 on the datasheet. Does this IC work properly in case fsw>f_res? (where f_res = resonant frequency of LLC circuit.) …

  • Resolved

  • 6 months ago
  • Power management
  • Power management forum

• UCC25800-Q1: LLC resonant converter design (SLUAAB9A)

  

  Fernando Carlos

  TI Thinks Resolved

  Part Number: UCC25800-Q1 Tool/software: Hi, I am currently working on designing an LLC resonant converter based on the Texas Instruments document SLUAAB9A. However, I am facing an issue where the simulated current on the secondary side of the transformer…

  • 6 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

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