max5952auaxt Maxim Integrated Products, Inc., max5952auaxt Datasheet - Page 7

• Manufacturer Part Number: max5952auaxt
• Description: Max5952 High-power, Quad, Pse Controller For Power-over-ethernet
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(AGND = 32V to 60V, V
AGND = +48V, DGND = +48V, V
(Note 2)
Note 2: Limits to -40°C are guaranteed by design.
Note 3: Default values. The current-limit thresholds are programmed through the I
Note 4: Functional test is performed over thermal shutdown entering test mode.
Note 5: Default values. The startup and fault times can be also programmed through the I
Note 6: This is the default value. Threshold can be programmed through serial interface R23h[2:0].
Note 7: AC disconnect works only if (V
Note 8:
Note 9: R
Note 10: Guaranteed by design. Not subject to production testing.
Differential Nonlinearity
ADC Absolute Accuracy
TIMING CHARACTERISTICS (For 2-Wire Fast Mode, Note 10)
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 for a Repeated
START Condition (Sr)
Data Hold Time
Data in Setup Time
Rise Time of Both SDA and
SCL Signals, Receiving
Fall Time of SDA Transmitting
Setup Time for STOP Condition
Capacitive Load for Each Bus
Line
Pulse Width of Spike
Suppressed
PARAMETER
Map and Description section).
and Description section).
t
rent at DET_ during phase 1 and 2 of the detection.
DISC
D
= (V
can also be programmed through the serial interface (R16H) (see the Register Map and Description section).
OUT_2
_______________________________________________________________________________________
EE
- V
= 0V, V
OUT_1
DD
DD
) / (I
SYMBOL
= (DGND + 3.3V), T
t
t
t
t
t
to DGND = +3.3V, all voltages are referenced to V
HD, STA
HD, DAT
SU, DAT
SU, STO
SU, STA
DET_2
t
t
DNL
t
f
HIGH
LOW
SCL
BUF
C
t
t
t
SP
R
F
High-Power, Quad, PSE Controller
B
DD
- I
- V
DET_1
DGND
V
V
V
SENSE
SENSE
SENSE
). V
) ≥ 3V and DGND is connected to AGND.
OUT_1
A
= 100mV
= 250mV
= 400mV
= +25°C. Currents are positive when entering the pin and negative otherwise.)
, V
OUT_2
CONDITIONS
for Power-Over-Ethernet
, I
DET_2
and I
DET_1
2
C-compatible serial interface (see the Register
EE
, unless otherwise noted. Typical values are at
represent the voltage at OUT_ and the cur-
2
C serial interface (see the Register Map
0.1C
0.1C
(239)
(387)
20 +
20 +
MIN
(90)
183
100
1.2
0.6
1.2
0.6
0.6
0.6
5A
EF
0
B
B
(248)
(400)
TYP
(97)
190
0.1
61
F8
(103)
(257)
(415)
MAX
101
19F
400
150
300
300
400
67
50
UNITS
(Dec)
LSB
Hex
kHz
pF
µs
µs
µs
µs
µs
ns
ns
ns
ns
µs
ns
7