• UCC21520: Output current at 350kHz

  

  Ethan Liu

  TI Thinks Resolved

  Part Number: UCC21520 Tool/software: Hi, What is the output current specification of UCC21520DWR at 350KHz? There is no relevant curve in the datasheet. The specification value in the datasheet is tested at 1KHz. Best regards! Ethan

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• UCC21520: The insulation characteristics curves of UCC21520.

  

  Gordon Xu

  Resolved

  Part Number: UCC21520 Hi experts, What does the 'safety margin zone' and 'operating zone' mean? Why the 1800Vrms has better life than 1500V, 254 years than 135 years? Thanks. BR, Gordon

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• UCC21520: Negative Bias Power Supply Output

  

  Jackson Wu

  TI Thinks Resolved

  Part Number: UCC21520 Tool/software: Hi， The specification sheet of UCC21520 provides a solution for Negative Bias with Zener Diode on Iso Bias Power Supply Output. But if my power supply has three outputs, namely VDD, GND and VEE. VDD2=18V，GND，VEE2…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC21520: UCC21550BQDWRQ1 OUTA not switching

  

  Bright Robert

  TI Thinks Resolved

  Part Number: UCC21520 Hi, I have UCC21550BQDWRQ1 circuit, which is attached. The PWM controller is UCC28086D at 33kHz. The input works fine. Concerning the output, only the OUT B is switching ON/OFF but the OUTA goes high and reads 10V, i.e., stays…

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• UCC21520: Strange behavior on the high side of UCC21520

  

  Phán Bùi

  Resolved

  Part Number: UCC21520 Hi supporter, I used UCC21520 to drive a half-bridge 3-phase MOSFET circuit (control motor), but there are some problems happened. Firstly, I don't connect the driver UCC21520 to the half-bridge 3-phase circuit. The signal high…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• UCC21520: looking for B distance > 9.6mm as like UCC21520DW

  

  GaryC

  TI Thinks Resolved

  Part Number: UCC21520 Tool/software: Do we have solution as like the UCC21520DW with B distance > 9.6mm? BR, Gary

  • over 1 year ago
  • Power management
  • Power management forum

• UCC21520-Q1: Capacitor on DT pin.

  

  Fabio Posser

  TI Thinks Resolved

  Part Number: UCC21520-Q1 Tool/software: Hi, you have an update on the datasheet regarding capacitor on DT pin. We have 10nF on our design, what's the impact? It's mandatory to change? Thank you. Revision of datasheet for the part from 2020:…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC21520-Q1: Gate driver Output Push-Pull being damaged.

  

  Fabio Posser

  TI Thinks Resolved

  Part Number: UCC21520-Q1 Other Parts Discussed in Thread: UCC21550-Q1 Tool/software: Hi, I’m experiencing issues with a PFC design connected to the grid, where the SiC MOSFETs are getting damaged. After some investigation, we found that the output…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC21550: Comparison table UCC21550 and UCC21520

  

  Jimmy WANG

  TI Thinks Resolved

  Part Number: UCC21550 Other Parts Discussed in Thread: UCC21520 Hi team, Could you provide a UCC21520 and UCC21550 detail comparison table? Does UCC21550 can replace UCC21520 directly? or any other solution can replace UCC21520? thanks

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• UCC21520-Q1: difference between ucc21520-q1 and ucc21520a-q1

  

  Akihiro Hirata

  Resolved

  Part Number: UCC21520-Q1 Other Parts Discussed in Thread: UCC21520 Hello team, This is general question. I believe the difference between ucc21520-q1 and ucc21520a-q1 is UVLO threshold. (5V vs 8V) What system is beneficial for non-A and what system…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

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