max5952auaxt Maxim Integrated Products, Inc., max5952auaxt Datasheet - Page 3
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max5952auaxt
Manufacturer Part Number
max5952auaxt
Description
Max5952 High-power, Quad, Pse Controller For Power-over-ethernet
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX5952AUAXT.pdf
(50 pages)
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ELECTRICAL CHARACTERISTICS (continued)
(AGND = 32V to 60V, V
AGND = +48V, DGND = +48V, V
(Note 2)
CURRENT LIMIT
Current-Limit Clamp Voltage
Overcurrent Threshold After
Startup
Foldback Initial OUT_ Voltage
Foldback Final OUT_ Voltage
Minimum Foldback
Current-Limit Threshold
SENSE_ Input Bias Current
PARAMETER
_______________________________________________________________________________________
EE
= 0V, V
DD
DD
V
SYMBOL
V
= (DGND + 3.3V), T
V
V
FLBK_END
to DGND = +3.3V, all voltages are referenced to V
V
FLBK_ST
FLT_LIM
SU_LIM
TH_FB
High-Power, Quad, PSE Controller
Maximum V
during current limit, V
(ICUT = 000) (Note 3)
Overcurrent V
allowed for t ≤ t
startup; V
(IVEE = 00)
V
current-limit trip voltage starts
folding back, IVEE = 00
IVEE = 00, ICUT = 000, V
which the current-limit trip voltage reaches
V
V
V
OUT_
TH_FB
OUT_
SENSE_
- V
= AGND = 60V, IVEE = 00, ICUT = 000
A
= V
= +25°C. Currents are positive when entering the pin and negative otherwise.)
OUT_
EE
SENSE_
, above which the
EE
SENSE_
= 0V,
FAULT
CONDITIONS
for Power-Over-Ethernet
allowed
OUT_
threshold
after
OUT
= 0V
- V
EE
IVEE = 00
IVEE = 01
IVEE = 10
IVEE = 11
ICUT = 000
(Class 0/3)
ICUT =110
(Class 1)
ICUT = 111
(Class 2)
ICUT = 001
ICUT = 010
ICUT = 011
ICUT = 100
ICUT =101
ICUT = 000,
ICUT = 110,
ICUT = 111
ICUT =
001…101
above
EE
, unless otherwise noted. Typical values are at
MIN
202
192
186
170
177
265
310
355
398
443
47
86
-2
TYP
212
202
190
180
186
280
327
374
419
466
55
94
28
10
50
64
MAX
220
212
200
190
196
101
295
345
395
440
488
62
+2
UNITS
mV
mV
mV
µA
V
V
3
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