Si3452/3
Rev. 0.47 33
12. Ordering Guide
12.1. Evaluation Kits and Reference Designs
Ordering Part
Number
1
Detect
Timing
2
Powerup Mode
2,3,4
Disconnect
Method
Firmware
Revision
Package
5
Temp. Range
Si3452-B01-GM Alt A PoE Shutdown
dV/dt disconnect
0.2.78
–10 to 85 °C
ambient
Si3452A-B01-GM Alt A
PoE (15.4 W)
Auto
Si3452B-B01-GM Alt B
Si3452C-B01-GM Alt A
PoE+ (30 W)
Si3452D-B01-GM Alt B
Si3453-B01-GM Alt A PoE Shutdown
DC disconnect
Si3453A-B01-GM Alt A
PoE (15.4 W)
Auto
Si3453B-B01-GM Alt B
Si3453C-B01-GM Alt A
PoE+ (30 W)
Si3453D-B01-GM Alt B
Si3452-B01-IM Alt A PoE Shutdown dV/dt disconnect –40 to 85 °C
ambient
Si3452A-B01-IM Alt A PoE (15.4 W)
Auto dV/dt disconnect
0.2.78
Notes:
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
(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.
3. Devices powering up into shutdown mode are intended for use with a system host that provides run-time configuration
or power-management.
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.
Part Number Populated
Device
Description Related Ethernet Chipset Type
Si3452MS8-KIT Si3452-B01-GM PoE+ 8-port Midspan PSE evalua-
tion kit. Includes PC-control inter-
face, PD loads, and cables.
None Evaluation Kit
Si3452V1-RD* Si3452-B01-GM PoE/PoE+ 24-port daughtercard Vitesse E-StaX (VSC7407) Reference Design
Si3452V2-RD* Si3452-B01-GM PoE+ 8-port Gb-Ethernet switch Vitesse SparX-G8e
(VSC7398)
Reference Design
Si3452M1-RD* Si3452-B01-GM PoE/PoE+ 24-port daughtercard Marvell Prestera-DX, xCAT Reference Design
*Note: Due to unique high-voltage and high-power design considerations, Silicon Laboratories recommends that the
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.
