Answered

• TPS23753AEVM-004: recommend a transformer

  

  Yuta Nishie

  Resolved

  Part Number: TPS23753AEVM-004 Tool/software: Hi, The HA3801-BL implemented in TPS23753AEVM-004 is difficult to obtain, so I am looking for an alternative. Could you please recommend a transformer? Best Regards, Nishie

  • Resolved

  • 10 months ago
  • Power management
  • Power management forum

• TPS23753AEVM-004: Q1 part substitution for 12V Operation

  

  John Yaron

  TI Thinks Resolved

  Part Number: TPS23753AEVM-004 For 12Vout Application, IRF7855 N-Chan MOSFET (Q1) is impossible to find in stock. Will Si4190ADY work for this application. Vgs threshold is slightly different.

  • over 5 years ago
  • Power management
  • Power management forum

• TPS23753: request GERBER file of TPS23753AEVM-004, TPS23753AEVM-235

  

  Dexter Choi

  TI Thinks Resolved

  Part Number: TPS23753 Dear Sir, Could you provide Gerber file of TPS23753AEVM-004, TPS23753AEVM-235? Thanks.

  • over 6 years ago
  • Power management
  • Power management forum

• TPS23753AEVM-004: design discussion

  

  user4979999

  TI Thinks Resolved

  Part Number: TPS23753AEVM-004 Hi, Here’re some questions from customer about TPS23753A-004EVM. 1. For the original EVM which is synchronous MOS at secondary side, why it will be CCM even load=0A? What’s the gate turn on/off criteria? When…

  • over 6 years ago
  • Power management
  • Power management forum
Answered

• TPS23753AEVM-004: TPS23753A

  

  govindveera

  Resolved

  Part Number: TPS23753AEVM-004 Hi, I have a mysterious problem. I am using TPS23753AEVM-004 reference design for my PoE based power supply. I have both options. I will use wall adaptor or PoE PD as power supply input. The power section is working well…

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• TPS23753AEVM-004: Q2 part substitution

  

  Kyran McGlasson73

  Resolved

  Part Number: TPS23753AEVM-004 Hi, Reading the users guide for the TPS23753AEVM-004 board, I am looking at validating the operation at 5V under 10W load, with a 12V AUX input. First, I will change the components listed in the BOM for 5V output operation…

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• RE: TPS23753AEVM-004: Runaway Vc on 5v design, Stability issue?

  

  Ian Campbell

  Resolved

  I'm having trouble with the reading on R15 on my TPS23753AEVM-004 doesn't seem to measure 4.7ohms... though this does not solve my issue, it may explain one of the above differences in waveform to the custom board. Are the schematic and BOM correct…

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• TPS23753A: TPS23753AEVM-004 based design runaway

  

  Matt Chang

  Resolved

  Part Number: TPS23753A Other Parts Discussed in Thread: TPS55340 , TLV431 Hi-- We have a new prototype design with a PoE front end essentially copied from the TPS23753AEVM-004. When powered from a RTN referenced supply at 36V (this is all we have tried…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

• TPS23753A: TPS23753A PoE Transformer Alternative

  

  Brl s.

  TI Thinks Resolved

  Part Number: TPS23753A Hi, We are designing a circuit based on the TPS23753A and are using the TPS23753AEVM-004 schematic as a reference. However, the HA3801-BL transformer used in the reference design is currently unavailable in stock. We are considering…

  • 2 months ago
  • Power management
  • Power management forum

• RE: TPS23753A: TPS23753A PoE PD – VC start-up does not reach steady operation, no AUX voltage, no output (based on PMP7355 reference)

  

  servan tenik

  Hi Zhining, Thank you for your follow-up. Please find more details below. Rcs = 0.39 Ω . VC waveform : ~10.7 V DC (no switching ripple observed). Vout = 0 V ; I cannot observe any secondary voltage. No output from the auxiliary…

  • 4 months ago
  • Power management
  • Power management forum

Didn't find what you are looking for? Post a new question.