MAX5984 MAXIM [Maxim Integrated Products], MAX5984 Datasheet - Page 3

• Manufacturer Part Number: MAX5984
• Description: Single-Port, 40W, IEEE 802.3af/at PSE Controller with Integrated MOSFET
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(V
V
AGND
OVERCURRENT
Overcurrent Threshold
INTERNAL POWER
DMOS On-Resistance
Power-Off OUT Leakage Current I
SUPPLY MONITORS
V
V
Hysteresis
V
V
Hysteresis
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
OUTPUT MONITOR
OUT Input Current
Idle Pullup Current at OUT
Short to V
Threshold
Short to V
Threshold Hysteresis
LOAD DISCONNECT
DC Load-Disconnect Threshold
AC Load-Disconnect Threshold
AGND
EE
EE
EE
EE
Undervoltage Lockout
Undervoltage Lockout
Overvoltage Lockout
Overvoltage Lockout
- V
- V
EE
PARAMETER
EE
EE
EE
Single-Port, 40W, IEEE 802.3af/802.3at PSE
= 54V, T
= 32V to 60V, T
Detection
Detection
_______________________________________________________________________________________
A
= +25NC. Currents are positive when entering the pin and negative otherwise.) (Note 2)
A
= -40NC to +85NC, all voltages are referenced to V
Controller with Integrated MOSFET
V
V
SYMBOL
OUT_LEAK
V
EE_UVLOH
R
V
DCN
DCN
EE_UVLO
T
EE_OVH
I
I
I
DS(ON)
T
I
EE_OV
BOUT
DCTH
ACTH
SHDH
I
CUT
SHD
DIS
TH
HY
Overcurrent
threshold
allowed for
t P t
V
(Note 3)
Measured
from OUT to
V
100mA
V
V
Port is shutdown if: V
UVLO
V
Port is shutdown and device resets if the
junction temperature exceeds this limit,
temperature increasing
Temperature decreasing
V
OUTP discharge current, detection and
classification off, port shutdown,
V
V
during detection
Minimum load current allowed before
disconnect (DC disconnect active),
V
Current into DET, for I
port powers off (AC disconnect active)
EE
OUT
EN
AGND
AGND
OUT
OUTP
OUT
OUT
, I
FAULT
= V
OUT
- V
= 0V
= V
- V
= 0V
= V
- V
- V
EE
EE_UVLOH
EE,
AGND
,
=
EE
EE
, V
AGND
V
, V
OUT
> V
OUT
CONDITIONS
Class 0, 1, 2, 3
Class 4
Class 5 if ILIM1 = V
ILIM2 = unconnected
Class 5 if ILIM1 =
unconnected, ILIM2 = V
Class 5 if ILIM1 = V
ILIM2 = V
T
T
, probing phases
A
A
AGND
- 2.8V
EE_OV
= +25NC
= +85NC
= V
decreasing, enabled
AGND
AGND
DET
increasing
, V
EE
AGND
< I
- V
ACTH
EE
increasing
EE
< V
EE
EE
the
, unless otherwise noted. Typical values are at
,
,
EE_
EE
MIN
351
602
710
752
794
200
115
1.5
5
+150
TYP
28.5
62.5
370
634
748
792
836
220
130
0.5
0.6
2.0
7.5
20
3
1
MAX
389
666
785
832
878
265
145
0.9
1.3
2.5
10
10
6
UNITS
mA
mA
mV
FA
FA
FA
FA
NC
NC
I
V
V
V
V
V
3