SI3453A-B01-GM Silicon Laboratories Inc, SI3453A-B01-GM Datasheet - Page 34

• Manufacturer Part Number: SI3453A-B01-GM
• Description: IC POE CONTROLLER MIDSPAN 40QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3453A-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: 336-1838-5

Si3453
12. Ordering Guide
12.1. Evaluation Kits and Reference Designs
34
Notes:
*Note: Due to unique high-voltage and high-power design considerations, Silicon Laboratories recommends that the
Si3452MS8-KIT
Ordering Part Number
Si3452M1-RD*
Si3452V1-RD*
Si3452V2-RD*
Part Number
1. Add “R” to the end of the ordering part number to denote tape-and-reel option. E.g., Si3452-B01-GMR.
2. For alternative A, power is applied to wire pairs 1,2 and 3,6. For alternative B, power is applied to wire pairs 4,5 and 7,8
3. Devices powering up into shutdown mode are intended for use with a system host that provides run-time configuration
4. The maximum PoE or PoE+ power applies to all ports on Auto mode devices.
5. Detect Timing and Powerup Modes (PoE vs. PoE+, Shutdown vs. Auto) are pre-configured in firmware but can be
6. All devices are packaged in RoHS-compliant, 40-pin, 6x6 mm QFN.
7. The Si3453-B01-GM is PoE+ capable. The part defaults to PoE mode at powerup but can be reconfigured to PoE+ via
Si3453C-B01-GM
Si3453D-B01-GM
Si3453A-B01-GM
Si3453B-B01-GM
Si3453-B01-GM
(the spare pairs in the case of 10/100 Ethernet). Conventionally, alternative B is used for midspan power injectors. For
alternative B, detection is done with over 2 seconds between detection pulses so as to avoid interfering with end-point
equipment trying to provide power using alternative A.
or power-management.
reconfigured at any time via a host connection.
register settings.
reference designs be followed very closely for both bill of materials and layout. Please visit the Silicon Labs technical
support web page at
your design, particularly if you are not closely following the recommended reference design.
Si3453-B01-GM
Si3453-B01-GM
Si3453-B01-GM
Si3453-B01-GM
Populated
Device
1
www.silabs.com/support/pages/contacttechnicalsupport.aspx
Timing
Detect
Alt A
Alt A
Alt B
Alt A
Alt B
PoE+ 8-port Midspan PSE evalua-
tion kit. Includes PC-control inter-
PoE/PoE+ 24-port daughtercard
PoE/PoE+ 24-port daughtercard
PoE+ 8-port Gb-Ethernet switch
2
face, PD loads, and cables.
Description
PoE (15.4 W)
PoE+ (30 W)
Powerup Mode
PoE
Rev. 1.2
7
Shutdown
2,3,4,5
Auto
Marvell Prestera-DX, xCAT
Related Ethernet Chipset
Vitesse E-StaX (VSC7407)
Vitesse SparX-G8e
(VSC7398)
None
Firmware
Revision
0.2.79
and register to request support for
Reference Design
Reference Design
Reference Design
Temp. Range
–40 to 85 °C
Evaluation Kit
Package
ambient
Type
6