Part Number: TPS23754 Other Parts Discussed in Thread: TPS23753 Hi, TI expert
The customer is reviewing the TPS23754PWPR for the RFID reader model and has technical inquiries.
The customer wants to ORing the POE power and the 24V adapter DC power to create…
Part Number: TPS23754 HI All,
We've got a current design using the TPS27354 (250kHz) and the Coilcraft POE300F-24L and it is working well in mass production.
However we have a smaller board to use the TPS23754 on, and the POE300F-24L transformer is…
Part Number: TPS23754 Hi,
We have used TPS23754 POE interface and Dc to Dc controller IC in the POE+ design.
We have connected two 0402 package resistors in series from CLS pin to VSS. The value of this resistors is 50 ohms and 15 ohms.
The program classification…
Part Number: TPS23754 Hello expert,
I didn't see the OCP point set equation in datasheet for TPS23754 flyback topology. May you provide the guidance for the testing and set the value? Thanks a lot!
Best regards,
Ann Lien
Part Number: TPS23754 Hi, TI experts
There is a request for technical inquiry from a customer regarding the use of TPS23754PWP in an RFID model.
The customer's RFID model operates by ORing the POE power and DC power to the TPS23754 to produce 5V output…
Part Number: TPS23754 Hi team,
If the TPS23754 is always in detect and classify state, will there be voltage output from the secondary transformer?
What is the internal DC-DC input voltage that will start the operation? Currently the customer's detection…
Part Number: TPS23754 Hi Team
Customer use TPS23754 to build the flyback PoE, the temperature of electrolytic capacitor connected between GND and Vc reaches 81.5 Celsius, which will greatly effect the capacitor life, can ceramic capacitors used in this…
Hi Henry ,
Sorry due to the format we could not do the layout review for you.
I will close this thread for now. Please reply or open a new thread if you have further questions.
Best regards,
Diang
Hi Grady,
Thanks for your patience.
Is there a reason to use 2KV for internal voltage?
- the 802.3 standard requires all PD & PSE provide isolation for all external conductors. Ethernet cable’s MDI leads should be included. 2 kV to meet the isolation voltage…
Part Number: TPS23754 We measured TPS23754 handshake waveform and found there is a current peak , pleas check attached picture for more detailed. We would like to know if this peak is noramal or abnormal behavior ? We found this peak on our board and TI…