Part Number: TPS23753A Other Parts Discussed in Thread: PMP7355 , , , TPS23753 Hi,
I have implemented a PMP7355 design on a custom board, which connects to a TPS65217C PMIC chip, and the LED connected to the SYS output pin flashes for about 50ms once.
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Other Parts Discussed in Thread: PMP7355 Hi,
We want to use PMP7355 Reference Design for low cost and small size.
We want to operate this EVM at 4.2V so we change the value of R24. 18.51 kohm will be selected.
Can we operate this EVM at 11W output in this…
Hi Chichin,
Sorry that I do not think we have reference circuit with 749119250. While you could look into the following reference designs and make some minor modifications.
PMP7355: 5V, 2A, Class 3,Cost-Optimized,Flyback Converter Reference Design for PoE…
Hi Michael,
Thank you for the information. I will definitely highlight the the compatibility of SR MOS and Diode.
I have one follow up question, if customer use TPS23755 in the 5V system, is there any concern?
Or PMP7355 will be the better option for customer…
Hi Daniel, Here are my recommendations - Reduce R542 to 10ohms - PMP7355 is a tested & highly optimized solution, so consider copying the component values for the feedback & current sense circuits. On PMP7355, that would be R18, R20, C21, R28, R23, R22…
Hi Sammi, We suggest using TPS23753A instead since It will be supported longer. Here are some tested & optimized 5V 13W flyback reference designs that fit their requirements: PMP9175 - Sync Rectifier Flyback PMP7355 - Diode Rectifier Flyback Thanks…
Hi apullin,
To improve thermal performance, a efficiency optimized design should be used. A 2nd power stage will not be necessary.
For 5V, we recommend PMP9175 using TPS23753A. Feel free to copy. TPS23755 is not intended for lower output voltages.
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Part Number: TPS23754 Other Parts Discussed in Thread: PMP7355 , PMP9175 , TPS23753A Hi Team,
Do we have PoE PD reference design can support Pos/Neg output power rail?
Below are customer's requirement.
only PD
±12V * 2 : +12V / 0.8A , -12V / 0.25A…
Thanks Tom,
I accept that we will only achieve 10W power due to the losses in the circuit. In the meantime we want to figure out how to achieve 10W on 12V input.
We have gone ahead with the PMP7355 design, however modified using parts of TPS23753AEVM-004…
