hahaha would you believe? I was wrong about being wrong about the TLV431...
I'm going to table this for a moment because I have some success with the TPS23758 (thanks to your suggestion)... I'll post my question in a different thread. If that…
Part Number: TPS23756 Other Parts Discussed in Thread: PMP40514 , , , LMV431 , TPS23758EVM-080 Hi, I wanted to leave a post in case this situation looked familar.
I have 3 prototype (custom pcb) boards modeled after PMP40514. I changed the voltage divider…
Part Number: TPS23756 Other Parts Discussed in Thread: TPS23861 Hi team,
My customer is using the TPS23756 now 12v 2A. They find one board cannot startup with PSE(switch). We want to try to test what's the condition, then we use a probe for the POE_VDD and…
Part Number: TPS23756 Dear all:
1.TPS23756 output 12V, but unable to carry load, load current is about 100mA, the below is the no-load of output waveform:
2. VDD-VSS only is 34V, but isn't 48V, the below is the sch:
2063.PX30 POE _ 39.pdf
Hi Kazuya,
Thanks for your reply. TPS23756 ( https://www.ti.com/tool/TPS23756EVM ) is a reference design has 12V - 60V input voltage. It is an isolated 25.5W PD + DC/DC converter. TPS23756 has a max 9.3-V UVLO at VC pin, but considering oring diode Vf drooping…
Hi Gareth,
Thanks for reaching out. Please see the suggestions below:
Suggestion 1: You can use TPS23753A's converter components or refer TPS23756. TPS23756 is similar with TPS23754 but has different VC UVLO voltage.
12V 1A: TIDA-00091 or PMP40514…
Part Number: TPS23756 Other Parts Discussed in Thread: PMP40514 Hi TI Folks!
So I made a PCB modeled after the PMP40514 schematic and it functionally works. However I have a high pitched audible whine noise emitting from L3.
Output voltage and current…
Part Number: TPS23756 On the TPS23756 datasheet section 7.3.8 Frequency and Synchronization (FRS), we note that the typical resistor (Rfrs) on the high impedance input FRS pin is say 68.1k Ohms (or whatever it is)
I wanted to use the Frequency Dithering…
Part Number: TPS23756 Hi Sir,
My ctm uses tps23756 as their poe source. when start poe func, the cs mesh port communicates failed.
we doubt because of the unsuitable design of the voltage transformer,would you pls give some recommendations on this issue…
Part Number: TPS23756 Hello,
In section 7.3.4 of the datasheet, it states "The current limit threshold, VCSMAX, defines the voltage on CS above which the GATE ON time will be terminated regardless of the voltage on CTL." However, looking at the Functional…