• UCC5871-Q1: UCC5871 OUTH voltage goes down

  

  Imelda Zhang

  TI Thinks Resolved

  Part Number: UCC5871-Q1 Hi Expert, My customer is using UCC5871-Q1 in their project. When they change the RGON and RGOFF to 200Ohm, the OUTH voltage goes into 13V rather than normal 18V. From my perspective the 2 resistors are used to minimize ringing…

  • 20 days ago
  • Power management
  • Power management forum

• UCC5871-Q1: UCC5871-Q1 undervoltage fault

  

  Imelda Zhang

  Part Number: UCC5871-Q1 Hi Expert, My customer is using the latest silicon in their project, only to find that the VCC1 UVLO is triggered. However, the voltage of VCC1 is 5.12V which is higher than level2. What's more, when customer disable VCC1 UVLO…

  • 1 month ago
  • Power management
  • Power management forum
Answered

• UCC5871-Q1: SPICE model

  

  Anand M

  Resolved

  Part Number: UCC5871-Q1 Hi Team, I'm looking for SPICE model of UCC5871Q Gate driver for one of my power supply designs. While checking on TI website, it was mentioned as request (i raised a request but didn't get any response). It would be helpful…

  • Resolved

  • 15 hours ago
  • Power management
  • Power management forum

• UCC5871-Q1: OV on Vds of external MOSFET

  

  song.lin

  TI Thinks Resolved

  Part Number: UCC5871-Q1 Hi experts: For the application of ucc5871-Q1, we have some issue. As the picture showed below, When the short circuit happens, we will open the SIC-MOSFET, there will be a high voltage at Vds of MOSFET because of parasitic loop…

  • 14 days ago
  • Power management
  • Power management forum

• UCC5871-Q1: Over voltage on Vds of external MOSFET

  

  Imelda Zhang

  TI Thinks Resolved

  Part Number: UCC5871-Q1 Hi Expert, For the application of ucc5871-Q1, we have some issue. As the picture showed below, When the short circuit happens, we will open the SIC-MOSFET, there will be a high voltage at Vds of MOSFET because of parasitic loop…

  • 14 days ago
  • Power management
  • Power management forum

• UCC5871-Q1: Power management forum

  

  song.lin

  TI Thinks Resolved

  Part Number: UCC5871-Q1 If we drive the SiCMOSFET with 18V and -5V from ucc5871, can the Miller clamp protection function active? And from the pic above, What is the ground for ISTO, is it VEE2?

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

• UCC5871-Q1: the meaning of PRI_RDY and SEC_RDY

  

  Jay wang

  Resolved

  Part Number: UCC5871-Q1 hi expert how can i understand the meaning/function of PRI_RDY(STATUS2 Register) and SEC_RDY(STATUS4 Register)

  • Resolved

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

• UCC5871-Q1: question about time parameter of DESAT function

  

  Jay wang

  Resolved

  Part Number: UCC5871-Q1 hi expert i find the following picture from datasheet about DESAT function. i have a question about tleb. from my understanding, the begin of tleb is rise edge of OUTH as quick calculation tool shown(tdesatleb), am i right? do…

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum

• UCC5871-Q1: IN+ IN-

  

  Scarlett Cao

  TI Thinks Resolved

  Part Number: UCC5871-Q1 Hi team. My customer plans to use UCC5871-Q1 to driver SiC MOS instead of pyrofuse for faster react time, and in their configuration there's only one FET. I'd like to check with you: If not bridge configuration, customer…

  • 11 months ago
  • Power management
  • Power management forum

• UCC5871-Q1: Internal resistance, Ron?

  

  ArTzy

  TI Thinks Resolved

  Part Number: UCC5871-Q1 Hi Experts, We would like to know the minimum and maximum R(ON) resistance of the gate driver IC. Seems the information is not available from datasheet. Regards, Archie A.

  • 11 months ago
  • Power management
  • Power management forum

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