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  Ulrich Goerke

  • 15 days ago
  • Power management
  • Power management forum

  RE: UCC2895: UCC2895 PWM opening time & SS time

  Hello User5794331, Thank you for your interest in the UCC2895 Phase-Shift PWM controller. At start-up, the EAOUT voltage follows the SS pin voltage. If you increase the SS time to 5ms, EAOUT will control the PWM so that the output will reach 3V in...
• 

  Colin Gillmor

  • 24 days ago
  • Power management
  • Power management forum

  RE: UCC2895: Noise Immunity

  Hi Kevin I appreciate that you couldn't be sure which device to refer to when posting to the forum - that's no problem at all. I've responded to the other post https://e2e.ti.com/support/power-management/f/196/t/915095 because it was the...
• 

  Mike O'

  • 2 months ago
  • Power management
  • Power management forum

  RE: UCC2895: UCC2895 SS pin clamp voltage and SS behaviour during cycle-by-cycle limiting

  Hello, Figure 10 the block diagram shows that the soft start charge current is based on RT. The soft start capacitor is discharged with 10 X the current that is set by RT. The soft start capacitor will be discharged based on faults. Please review the...
• 

  Louis Han15

  • 5 months ago
  • Power management
  • Power management forum

  UCC2895: Request for Glitch Removal from Gate

  TI Thinks Resolved

  Part Number: UCC2895 Hello I Using UCC2895DW for DC-DC As the load increases, glitches occur on the gate. Yello : Q15Vgs(HIGHSIDE) Pink : Q15Ids(HIGHSIDE) Blue : Q19Vgs(LOWSIDE) Green : Q19Ids(LOWSIDE) I attached Schematic file. SW FET...
• 

  Phil Silverstein

  • 7 months ago
  • Power management
  • Power management forum

  UCC2895: On/off operation

  TI Thinks Resolved

  Part Number: UCC2895 We are having a strange issue with the UCC2895 controller. The problem we have is that when we turn the supply OFF and then back ON again the main power does not come up. The power factor correction section seems to be working,...
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  ACGUY

  • 8 months ago
  • Power management
  • Power management forum

  UCC2895: First gate pulse at startup

  • Resolved

  Part Number: UCC2895 Hello E2E, When startup, first gate pulses output from OUT_A and OUT_C
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  Kuan Wei Chen (Kevin Chen)

  • 24 days ago
  • Power management
  • Power management forum

  UC2843: Noise Immunity

  Part Number: UC2843 Dear Team, We find the UCC2895 PSFB's Vds(CH2 green) noise will affect UC2843 Buck's Pin4 triangle waveform(CH1 yellow), so the Buck duty will be abnormal As you can see waveforms, when the Vds is not switching the triangle...
• 

  watchaphong Aoopree1

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

  UCC2895:

  TI Thinks Resolved

  Part Number: UCC2895 Hi TI team Is it possible UCC28950 to make 12VDC(Battery) to 400VDC POUT 200W? Best regards Watchaphong
• 

  David Kim6

  • 7 months ago
  • Power management
  • Power management forum

  UCC2895: UCC2895 vs UCC28951

  • Resolved

  Part Number: UCC2895 Hi I will use part of Phase Shift Full Bridge. I mark a comparative review
• 

  John Chou62

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

  UCC2895: maximum phase shift

  • Resolved

  Part Number: UCC2895 Dear Team, please advice the method on how to calculate the maximum phase

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