LTC4266 LINER [Linear Technology], LTC4266 Datasheet - Page 4

• Manufacturer Part Number: LTC4266
• Description: Quad IEEE 802.3at Power over Ethernet Controller
• Manufacturer: LINER [Linear Technology]

LTC4266
SYMBOL
Current Sense
V
V
V
V
V
V
Port Current ReadBack
Port Voltage ReadBack
Digital Interface
V
V
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
otherwise noted. (Notes 3, 4)
4
CUT
LIM
LIM
LIM
MIN
SC
ILD
IHD
PARAMETER
Overcurrent Sense Voltage
Overcurrent Sense in AUTO pin mode
Active Current Limit in 802.3af Compliant
Mode
Active Current Limit in High Power Mode
Active Current Limit in AUTO pin mode
DC Disconnect Sense Voltage
Short-Circuit Sense
Resolution
LSB Weight
50-60Hz Noise Rejection
Resolution
LSB Weight
50-60Hz noise rejection
Digital Input Low Voltage
Digital Input High Voltage
Digital Output Low Voltage
Internal Pull-Up to V
Internal Pull-Down to DGND
DD
A
CONDITIONS
V
Class 0, Class 3
Class 1
Class 2
Class 4
V
V
hpen = 0Fh, limn = C0h, V
V
V
V
V
V
No missing codes, fast_iv = 0
V
(Note 7)
No missing codes, fast_iv = 0
AGND – V
(Note 7)
(Note 6)
(Note 6)
I
I
ADn, SHDNn, RESET, MSD
AUTO, MID
= 25°C. AGND – V
SDAOUT
SDAOUT
SENSEn
SENSEn
EE
OUT
SENSEn
SENSEn
SENSEn
SENSEn
SENSEn
hpen = 0Fh, cutn[5:0] ≥ 4 (Note 12)
V
AGND – V
V
V
AGND – V
Class 0 to Class 3
Class 4
= 55V (Note 12)
EE
OUT
EE
– V
cutrng = 0
cutrng = 1
The
< V
+ 23V < V
= 3mA, I
= 5mA, I
– V
– V
– V
– V
– V
– V
– V
EE
– V
OUTn
OUT
EE
= 0V to 10V, V
EE
EE
EE
EE
EE
EE
l
EE
, icut12 = icut34 = hpen = 00h
OUT
OUT
, dblpwr = hpen = 00h
, rdis = 0
, rdis = 1
– V
– V
denotes the specifications which apply over the full operating
< AGND – 29V
= 0V to 10V
INT
INT
OUT
LIM
LIM
= 0V
= 0V
= 3mA
= 5mA
EE
, rdis = 0
, rdis = 1
< AGND – 29V
= 54V, AGND = DGND, and V
EE
EE
= 55V
= 55V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
180
152
204
204
100
102
204
160
4.5
2.6
1.3
2.2
90
26
49
40
20
75
9
DD
– DGND = 3.3V unless
5.835
9.38
4.69
30.5
TYP
188
159
212
212
106
106
212
200
100
3.8
1.9
94
28
52
14
30
14
30
50
50
MAX
9.75
4.88
2.41
196
166
220
100
221
113
110
221
255
135
4.8
0.8
0.4
0.7
98
30
55
50
mV/LSB
mV/LSB
mV/LSB
µV/LSB
UNITS
4266fb
bits
bits
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
kΩ
kΩ
dB
dB
V
V
V
V