SI3452 SILABS [Silicon Laboratories], SI3452 Datasheet - Page 33

• Manufacturer Part Number: SI3452
• Description: QUAD HIGH-VOLTAGE PORT CONTROLLER FOR POE AND POE+ PSES
• Manufacturer: SILABS [Silicon Laboratories]

12. Ordering Guide
12.1. Evaluation Kits and Reference Designs
Notes:
*Note: Due to unique high-voltage and high-power design considerations, Silicon Laboratories recommends that the
Si3452MS8-KIT
Si3452M1-RD*
Si3452V1-RD*
Si3452V2-RD*
Part Number
Si3452A-B01-GM
Si3452B-B01-GM
Si3452C-B01-GM
Si3452D-B01-GM
Si3453A-B01-GM
Si3453B-B01-GM
Si3453C-B01-GM
Si3453D-B01-GM
Si3452A-B01-IM
Si3452-B01-GM
Si3453-B01-GM
Si3452-B01-IM
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. All devices are packaged in RoHS-compliant, 40-pin, 6x6 mm QFN.
Ordering Part
Number
(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.
reference designs be followed very closely for both bill of materials and layout. Please visit the Silicon Labs technical
support web page at https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to request
support for your design, particularly if you are not closely following the recommended reference design.
1
Si3452-B01-GM
Si3452-B01-GM
Si3452-B01-GM
Si3452-B01-GM
Populated
Device
Timing
Detect
Alt A
Alt A
Alt B
Alt A
Alt B
Alt A
Alt A
Alt B
Alt A
Alt B
Alt A
Alt A
2
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
PoE (15.4 W)
PoE (15.4 W)
PoE (15.4 W)
PoE+ (30 W)
PoE+ (30 W)
face, PD loads, and cables.
Powerup Mode
PoE
PoE
PoE
Description
Shutdown
Shutdown
Shutdown
Rev. 1.0
Auto
Auto
Auto
2,3,4
dV/dt disconnect
dV/dt disconnect
dV/dt disconnect
DC disconnect
Disconnect
Marvell Prestera-DX, xCAT
Related Ethernet Chipset
Vitesse E-StaX (VSC7407)
Method
Vitesse SparX-G8e
(VSC7398)
None
Firmware
Revision
0.2.79
0.2.79
Si3452/3
Reference Design
Reference Design
Reference Design
Evaluation Kit
Temp. Range
–10 to 85 °C
–40 to 85 °C
Package
ambient
ambient
Type
5
33