SI3453-B01-GM Silicon Laboratories Inc, SI3453-B01-GM Datasheet - Page 7

• Manufacturer Part Number: SI3453-B01-GM
• Description: IC POE CONTROLLER MIDSPAN 40QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3453-B01-GM

• Package / Case: 40-QFN
• Controller Type: Power over Ethernet Controller (POE)
• Interface: I²C
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 14mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Maximum Power Dissipation: 1.2 W
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE 802.3at, IEEE 802.3af
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current (max): 14 mA
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1837-5

Table 5. Classification Specifications
Table 6. VOUT Drive and Power-on Specifications
Class event voltage
Mark event voltage
Classification current
limit
Classification current
regions
Classification delay
Classification event time
Mark event time
Max output resistance
(port on)
VOUTn operating
current limit
Overload current
threshold
Over current time limit
VOUTn turn-on slew
Power turn on timing
VOUTn leakage current
Notes:
1.
2. 600 mA is consistent with the IEEE 802.3at draft standard. I
3. For 2x mode and extreme overload or short-circuit events, T
Description
Description
In auto mode, class policing is automatically enabled. In manual mode, I
See "5.4. Port Configuration (Registers 0x0A–0x011)" on page 18 for more information.
increments to over 800 mA for non-standard applications.
excessive FET heating. This is consistent with the 802.3at draft.
3
T
I
I
OUT_LEAK
LIM_CLASS
CLASS_DLY
Symbol
Symbol
V
T
V
T
T
R
I
T
CLASS
I
OVLD
T
MARK
CUT
RISE
LIM
PON
CLE
ON
ME
Width of mark between classification
Time from end of valid detect cycle
Width of valid V
Class 1 (class policing enabled)
Class 2 (class policing enabled)
Time from end of valid detect to
Measured with DETn shorted to
Event or 2-Event classification
Load current ≥ I
PoE+ (>15.4 W) mode
PoE (<15.4 W) mode
to classification begin
0 mA < I
0 mA < I
Test Conditions
Port in shutdown
Test Conditions
Rev. 0.42
I
Port
10% to 90%
Overcurrent
power on
Class 4
Class 0
Class 3
Class 0
Class 1
Class 2
Class 3
Class 4
events
≤ 720 mA
GND
Port
Port
CLASS
< 45 mA
CUT
< 5 mA
2
probe for 1-
CUT
OVLD
or I
LIM
is user-programmable in 3.2 mA
CUT
will dynamically decrease to prevent
1
1
must be programmed manually.
–15.5
Min
Min
400
800
350
160
350
600
–7
55
16
25
35
51
10
91
50
15
—
—
—
—
—
0
8
Typ
Typ
425
850
0.3
70
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
8
Si3452/3
–20.5
Max
Max
–10
100
450
400
0.6
13
21
31
45
30
75
—
—
—
—
—
—
—
—
—
—
—
5
Unit
Unit
mA
mA
mA
mA
ms
ms
ms
ms
ms
µA
µs
Ω
V
V
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