Quad Network Power Controller
for Power-Over-LAN
2  _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(Voltages referenced to V
EE
, unless otherwise noted.)
AGND, DGND, DET_, V
DD
, RESET, A3, A2, A1, A0, SHD_,
OSC_IN, SCL, SDAIN, OUT_ and AUTO............-0.3V to +80V
GATE_ (Internally Clamped, Note 1)...................-0.3V to +11.4V
SENSE_ ..................................................................-0.3V to +24V
V
DD
, RESET, A3, A2, A1, A0, SHD_, OSC_IN, SCL, SDAIN and
AUTO to DGND ....................................................-0.3V to +7V
INT and SDAOUT to DGND....................................-0.3V to +12V
Maximum Current into INT, SDAOUT, DET_.......................80mA
Maximum Power Dissipation
36-Pin SSOP (derate 11.4mW/癈 above +70癈) .........941mW
Operating Temperature Ranges:
MAX5935EAX ..................................................-40癈 to +85癈
MAX5935CAX .....................................................0癈 to +70癈
Storage Temperature Range.............................-65癈 to +150癈
Junction Temperature......................................................+150癈
Lead Temperature (soldering, 10s).................................+300癈
ELECTRICAL CHARACTERISTICS
(AGND = +48V. V
EE
= 0V, V
DD
to DGND = +3.3V. All voltages are referenced to V
EE
, unless otherwise noted. Typical
values are at AGND = +48V, DGND = +48V, V
DD
= (DGND + 3.3V), T
A
= +25癈. Currents are positive when entering the pin and
negative otherwise.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
NIT
POWER SUPPLIES
V
AGND
V
AGND
- V
EE
32
60
V
DGND
0
60
V
DD
to V
DGND
,
V
DGND
= V
AGND
1.71
5.50
Operating Voltage Range
V
DD
V
DD
to V
DGND
,
V
DGND
= V
EE
3.0
5.5
V
I
EE
OUT_= V
EE
, SENSE_ = V
EE
, DET_ = AGND,
all logic inputs open, SCL = SDAIN = V
DD
,
INT and SDAOUT open; measured at AGND
in power mode after GATE_ pullup
4.2
6.8
Supply Currents
I
DIG
All logic inputs high, measured at V
DD
2.7
5.6
mA
GATE DRIVER AND CLAMPING
GATE_ Pullup Current
I
PU
Power mode, gate drive-on, V
GATE
= V
EE
(Note 2)
-35
-50
-65
礎
W   k   ATE  P  ll   wn    rr  n
I
PDW
SHD_ = DGND, V
GATE_
= V
EE
+ 5V
25
40
55
礎
Maximum Pulldown Current
I
PDS
V
SENSE
= 1V, V
GATE_
= V
EE
+ 2V
100
mA
External Gate Drive
V
GS
V
GATE
- V
EE
, power mode, gate drive-on
9
10
11
V
CURRENT LIMIT
Current-Limit Clamp Voltage
V
SU_LIM
Maximum V
SENSE_
allowed during current limit,
V
OUT_
= V
EE
(Note 3)
202
212
222
mV
Default, Class 0,
Class 3, Class 4
177
196
Class 1
48
61
Overcurrent Threshold After
Startup
V
FLT_LIM
Overcurrent V
SENSE_
threshold allowed for
t d t
FAULT
after startup;
V
OUT_
= V
EE
Class 2
89
105
mV
F  l
k Ini i  l
T  V  l
V
FLBK_ST
V
OUT_
- V
EE
, above which the current-limit trip
voltage starts folding back
30
V
Foldback Final OUT_ Voltage
V
FLBK_END
V
OUT_
- V
EE
, above which the current-limit trip
voltage reaches V
TH FB
50
V