Rainbow Electronics MAX5965B - Manual (Page 42)

MAX5965A/MAX5965B
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
42 ______________________________________________________________________________________
Table 34c. ICUT Register Bit Values for Current-Limit Threshold
ICUT_[2:0] (ADDRESS = 2Ah, 2Bh) SCALE FACTOR TYPICAL CURRENT-LIMIT THRESHOLD (mA)
000 1x 375
001 1.5x 563
010 1.75x 656
011 2x 750
100 2.25x 844
101 2.5x 938
110 0.3x Class 1
111 0.53x Class 2
Table 35a. Classification Status Registers
ADDRESS = 2Ch, 2Dh, 2Eh, 2Fh
SYMBOL BIT R/W
DESCRIPTION
7 — Reserved
Reserved
6 — Reserved
Table 35b. Class Sequence States
CLASS_[5:0]
(ADDRESS = 2Ch, 2Dh,
2Eh, 2Fh)
CLASS
SEQUENCE
ICUT[2:0]
000000 000 (Class 0) 000
000001 001 000
000010 010 HP[2:0]
000011 011 000
000100 100 000
000101 101 HP[2:0]
000110 110 000
000111 111 (Class 1) 110
001000 002 000
001001 020 011
001010 022 000
001011 200 000
001100 202 100
001101 220 000
001110 222 (Class 2) 111
001111 003 000
010000 030 010
010001 033 000
010010 300 000
010011 303 010
010100 330 000
CLASS_[5:0]
(ADDRESS = 2Ch, 2Dh,
2Eh, 2Fh)
CLASS
SEQUENCE
ICUT[2:0]
010101 333 (Class 3) 000
010110 004 000
010111 040 000
011000 044 000
011001 400 000
011010 404 000
011011 440 000
011100 444 (Class 4) HP[2:0]
011101 005 000
011110 050 000
011111 055 000
100000 500 000
100001 505 000
100010 550 000
100011 555 (Class 5) HP[2:0]
100100 Reserved 000
100101 Reserved 000
100110 Reserved 000
100111 Reserved 000
101000 Illegal 000
101001 Illegal 000