MAX5945EAX+ Maxim Integrated Products, MAX5945EAX+ Datasheet - Page 6

• Manufacturer Part Number: MAX5945EAX+
• Description: IC NETWORK PWR CTRL 36-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5945EAX+

• Controller Type: Network Power Controller
• Interface: I²C
• Voltage - Supply: 3.3V
• Current - Supply: 4.2mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Quad Network Power Controller
for Power-Over-LAN
ELECTRICAL CHARACTERISTICS (continued)
(AGND = +32V to +60V, V
values are at AGND = +48V, DGND = +48V, V
negative otherwise.)
Note 2: Default values. The charge/discharge currents are programmable through the serial interface (see the Register Map and
Note 3: Default values. The current-limit thresholds are programmed through the I
Note 4: This is the default value. Threshold can be programmed through serial interface R23h[2:0].
Note 5: AC disconnect works only if V
Note 6: t
Note 7: R
Note 8: Default values. The startup and fault times can also be programmed through the I
Note 9: Guaranteed by design. Not subject to production testing.
(V
T
6
Setup Time for a Repeated
START Condition (Sr)
Data Hold Time
Data Setup Time
Rise Time of Both SDA and
SCL Signals, Receiving
Fall Time of SDA Transmitting
Setup Time for STOP Condition
C ap aci ti ve Load for E ach Bus
Li ne
Pulse Width of Spike
Suppressed
A
EE
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
= -48V, V
32
Description section).
Map and Description section).
at DET_ during phase 1 and 2 of the detection.
and Description section).
MEASURED AT AGND
DISC
PARAMETER
D
= (V
37
ANALOG SUPPLY CURRENT
DD
can also be programmed through the serial interface (R29h) (see the Register Map and Description section).
OUT_2
vs. INPUT VOLTAGE
= +3.3V, AUTO = AGND = DGND = 0V, RESET = SHD_ = unconnected, R
INPUT VOLTAGE (V)
42
- V
47
OUT_1
EE
52
= 0V, V
) / (I
SYMBOL
t
t
t
t
57
DET_2
HD, DAT
SU, STA
SU, DAT
SU, STO
t
C
t
t
SP
DD
R
F
DD
B
62
- V
- I
to DGND = +3.3V, all voltages are referenced to V
DET_1
DGND
(Note 9)
(Note 9)
(Note 9)
(Note 9)
(Note 9)
(Note 9)
(Note 9)
(Note 9)
DD
). V
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
≥ 3V.
= (DGND + 3.3V), T
-40
OUT_1
ANALOG SUPPLY CURRENT
-15
, V
OUT_2
vs. TEMPERATURE
TEMPERATURE (°C)
CONDITIONS
10
, I
DET_2
Typical Operating Characteristics
35
A
= +25°C. Currents are positive when entering the pin and
and I
60
DET_1
2
C-compatible serial interface (see the Register
85
represent the voltage at OUT_ and the current
2
SENSE
C serial interface (see the Register Map
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
EE
-40
= 0.5Ω, all registers = default setting,
20 + 0.1C
20 + 0.1C
, unless otherwise noted. Typical
MIN
100
0.6
0.6
0
DIGITAL SUPPLY CURRENT
-15
vs. TEMPERATURE
B
B
TEMPERATURE (°C)
TYP
10
35
MAX
150
300
300
400
50
60
UNITS
µs
ns
ns
ns
ns
µs
pF
ns
85