MAX5980 MAXIM [Maxim Integrated Products], MAX5980 Datasheet - Page 6

• Manufacturer Part Number: MAX5980
• Description: Quad, IEEE 802.3at/af PSE Controller
• Manufacturer: MAXIM [Maxim Integrated Products]

Quad, IEEE 802.3at/af PSE Controller
for Power-over-Ethernet
ELECTRICAL CHARACTERISTICS (continued)
(V
values are at V
otherwise.) (Note 2)
Note 2: Production testing done at +25NC. Overtemperature limits are guaranteed by design and not production tested.
Note 3: The current-limit thresholds are programmed through the I 2 C interface (see the Register Map and Description section and
Note 4: Functional test is performed over thermal shutdown entering test mode.
Note 5: R
Note 6: If Class 5 is enabled, this value is the classification current threshold from Class 4 to Class 5, and classification currents
Note 7: Default value. The fault timer can be reprogrammed through the I 2 C interface (TLIM_[3:0]).
Note 8: Guaranteed by design. Not subject to production testing.
6
Gain Error
V
Integral Nonlinearity
Differential Nonlinearity
Current Reading Range
Current LSB Step Size
Voltage Reading Range
Voltage LSB Step Size
TIMING CHARACTERISTICS (3-Wire Fast Mode)
Serial Clock Frequency
Bus Free Time Between a STOP
and START Condition
Hold Time for a START Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time
Data Hold Time
Data in Setup Time
Cumulative Clock Low Extend
Time
Fall Time of SDAOUT
Transmitting
Setup Time for STOP Condition
Pulse Width of Spike Suppressed
AGND
EE
Voltage Accuracy
= 32V to 60V, V
Table 41).
into OUT_ during phase 1 and 2 of the detection, respectively.
between 51mA and I
PARAMETER
DOK
AGND
= (V
OUT2
= 54V, T
EE
- V
= V
OUT1
CL_LIM
DGND
A
= +25NC, and default register settings. Currents are positive when entering the pin, and negative
)/(I
OUT2
= 0V, T
SYMBOL
t
t
will be classified as Class 5.
t
t
LOW_EXT
t
t
HD, DAT
HD, STA
SU, DAT
SU, STO
SU, STA
t
t
DNL
f
t
HIGH
LOW
INL
SCL
BUF
t
SP
t
F
- I
A
OUT1
= -40NC to +105NC. All voltages are referenced to V
Gain error voltage
Gain error current
V
Classes 0–4
Class 5
Classes 0–4
Class 5
All classes
All classes
START and STOP conditions
Receive
Transmit
(Note 8)
(Note 8)
). V
AGND
OUT1
- V
, V
EE
OUT2
= 48V
CONDITIONS
, I
OUT1
T
T
T
T
T
T
A
A
A
A
A
A
, and I
= -5°C to +85°C
= -40°C to +105°C
= -5°C to +85°C
= -40°C to +105°C
= -5°C to +85°C
= -40°C to +105°C
OUT2
represent the voltage at OUT_ and the current
MIN
-0.5
-2.5
-0.5
-0.5
100
100
1.3
0.6
1.3
0.6
0.6
0.6
EE
10
-1
-2
0
, unless otherwise noted. Typical
1.956
3.912
TYP
95.6
187
30
1
2
MAX
+4.5
+2.5
+4.5
400
300
250
+4
+2
+5
25
1
1
UNITS
LSB
LSB
kHz
mA
mV
ms
Fs
Fs
Fs
Fs
Fs
ns
ns
ns
Fs
ns
%
%
A
V