Hi Kerim,
If in autonomous mode you may have a overload issue when 3rd 90W load is connected. Assuming your converter will limit the power to 200W, then your PSE input voltage may drop due to overload until reaches TPS23881B1's VPWR UVLO. Then the PSE…
Hi Tao,
Sorry for the late reply.
1. PSE port off:
2. Alt-A Alt-B are both connected. Load power = 22W per Alt
3. Alt-B is connected, Alt-A is open. Load power = 22W in Alt-B
4. Alt-A is connected, Alt-B is open. Load power = 22W in Alt-A
Best regards…
Part Number: TPS23881B Other Parts Discussed in Thread: TPS23881 Tool/software: Hi team,
My customer product input signal is POE, it is going through power and data, we want to get the 30W power and 480Mbps data rating, means we need at least the POE…
Part Number: TPS23881B Other Parts Discussed in Thread: TPS23881 , Tool/software: Dear E2E Support,
Could you confirm what are the exact differences between our autonomous and former version of TPS23881?
Are we 100% software compatible?
Regards,
Part Number: TPS23881B Tool/software: My issue deals with input: AUTO (Pin#52). I will use this device without MCU. Datasheet mentions: "R_AUTO enables autonomous operation at selectable port power allocation levels." There is no description…
Hi AJITH,
Please see below information about TPS23881 or TPS23881B1. Both have 8 channels. 2-pairs port needs 1 channel and is up to 30W e ach port. 4-pairs port needs 2 channels and is up to 90W each port.
TPS23881B: with/without host control, 8 channels…
Hi Kapil,
Thanks for reaching out!
For 60W range you may need to use Type-3 or -4 BT standard PSE. Currently only TPS23881 or TPS23881B1 can do standard design for this power range. 2-pairs port needs 1 channel and is up to 30W each port. 4-pairs port…
Hi Gareth,
LTC9103AUK is an 8-channel PSE controller that pairs with the host communication device (LTC9101AUF). These devices are paired together creating a two chip solution, whereas our PSE are an all in one integrated solution. The best recommendation…
Hi Girish,
You will need to configure upon every time booting if the device looses power.
Quick note: ensure you are using SRAM.
If you wish to not be required to configure every time upon booting, I recommend taking a look at our TPS23881B , which includes…
Part Number: TPS23881B1EVM-024 Tool/software: Hi,
Need some clarity on connections in 4-pair port configuration. The EVM schematic shows:
whereas in the datasheet the connections shown are different:
In the datasheet, VPWR netlabels goes directly…
