SNVAA25A January 2022 – July 2022 DP83TD510E , ESDS302 , LM5155 , LM66100 , MSP430FR2476 , TL431LI , TLV3012
Consider the IEEE 802.3cg standard as the 10BASE-T1S/10BASE-T1L and PoDL amendment to the IEEE 802.3bu standard which applies to 100BASE-T1 and 1000BASE-T1. The IEEE 802.3bu standard defined 4 types of PSEs Type A, Type B, Type C, and Type D. The standard also defines 10 different power classes for PDs and PSEs including 12-V, 24-V and 48-V unregulated and regulated PSE classes. The IEEE 802.3cg standard extended this by introducing type E and adding 30 V and 58 V classes bringing the total to 15 different compliant classes. Table 1-1 and Table 1-2 detail the complete type and class power matrices.
Type | A | B | C | D | E |
---|---|---|---|---|---|
10BASE-T1S | X | X | |||
10BASE-T1L | X | ||||
100BASE-T1 | X | ||||
1000BASE-T1 | X | X | |||
No data or incompatible | X |
Class | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
VPSE(max) (V) | 18 | 18 | 18 | 18 | 36 | 36 | 36 | 36 | 60 | 60 | 30 | 30 | 30 | 58 | 58 | 58 |
VPSE_OC(min) (V) | 6 | 14.4 | 14.4 | 12 | 12 | 26 | 26 | 48 | 48 | 48 | 30 | 20 | 20 | 50 | 50 | 50 |
VPSE(min) (V) | 5.6 | 5.77 | 14.4 | 14.4 | 11.7 | 11.7 | 26 | 26 | 48 | 48 | 20 | 20 | 20 | 50 | 50 | 50 |
IPI(max) (mA) | 101 | 227 | 249 | 471 | 97 | 339 | 215 | 461 | 735 | 1360 | 92 | 249 | 632 | 231 | 600 | 1579 |
Pclass(min) (W) | 0.566 | 1.31 | 3.59 | 6.79 | 1.14 | 3.97 | 5.59 | 12 | 35.3 | 65.3 | 1.85 | 4.8 | 12.63 | 11.54 | 30 | 79 |
VPD(min) (V) | 4.94 | 4.41 | 12 | 10.6 | 10.3 | 8.86 | 23.3 | 21.7 | 40.8 | 36.7 | 14 | 14 | 14 | 35 | 35 | 35 |
PPD(max) (W) | 0.5 | 1 | 3 | 5 | 1 | 3 | 5 | 10 | 30 | 50 | 1.23 | 3.2 | 8.4 | 7.7 | 20 | 52 |
This document focuses on the design considerations of a class 12 10BASE-T1L compliant PD.