Hello,
We have some LTC4271 parts with date code 1209.
What is the date code format for these parts? YYWW or WWYY or yet another format?
Kind regards
HAns
Hello,
We have some LTC4271 parts with date code 1209.
What is the date code format for these parts? YYWW or WWYY or yet another format?
Kind regards
HAns
Hi team
This is a question about LTC4271.
There is a register description in the datasheet as shown below.
https://www.analog.com/media/en/technical-documentation/data-sheets/429071fb.pdf
Register Description
For information on serial bus usage and device…
Hi Pallavi,
You can use a non-isolated supply to derive 3.3V from the PoE's 48V rail as long as those circuits do not connect to the chassis ground or any external connectors aside for an Ethernet cable. Usually the LTC4271 and other digital circuits…
LTC4271 Software Interface文件中,
針對Port Status的描述中,
其Table3的[2:0=7]描述和Register map的描述是不一樣的.
請教在detect bit為 111 (7) 的時候,正確的結果是什麼呢?
謝謝.
Hi Ken,
A PSE, referring to the entire device or switch, may declare the availability of high power by performing a multiple-event Physical Layer Classification using voltage pulses, or with Data Link Layer Classification (DLL), using data packets. PSE…
The LTC4291-1/LTC4292 chipset is specifically for IEEE 802.3bt 4-pair power. In this system, 2 power channels drive the 4 Ethernet pairs. A properly implemented LTPoE++ PSE will have a single power channel driving the 4 pairs. These are two different implementations…
Hi Damon,
Can you confirm the circumstances of the test you described? Is this a Class 4 power allocation that is drawing the 600mA / 620mA? This is right up to the maximum of the specification. The LTC4270/LTC4271 will cut off the current when it senses…