SI3461-KIT Silicon Laboratories Inc, SI3461-KIT Datasheet - Page 10

• Manufacturer Part Number: SI3461-KIT
• Description: BOARD EVAL FOR SI3461
• Manufacturer: Silicon Laboratories Inc
• Type: Controllers & Processorsr

Specifications of SI3461-KIT

• Main Purpose: Special Purpose DC/DC, Power Over Ethernet
• Board Type: Fully Populated
• Utilized Ic / Part: Si3461
• Ethernet Connection Type: 10/100 Base-T, IEEE 802.3
• Interface Type: Ethernet
• Operating Voltage: 12 V to 15 V
• Operating Current: 10 mA
• Product: Modules
• For Use With/related Products: Si3460
• Lead Free Status / RoHS Status: Lead free / RoHS non-compliant
• Current - Output: -
• Voltage - Output: -
• Voltage - Input: -
• Power - Output: -
• Frequency - Switching: -
• Outputs And Type: -
• Regulator Topology: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1843

Si3461
3. Typical Si3461-EVB Waveforms
Note: Voltages are negative going with respect to the positive input.
10
Ch1: PoE output voltage referenced to the +50V rail
Ch1: PoE output voltage referenced to the +50V rail
PoE+ Current Limit Response
Classification and Power-up
Powering a PoE+ Device
Detection
PoE+
t
LIM
Detection
Delay PoE+
Two event classification
Mark Pulse
Classification
t
CLASS_CYCLE
t
PWRUP
Power-on
Figure 2. Typical Si3461-EVB Waveforms
Ch1: PoE output voltage referenced to the +50V rail
Ch1: PoE output voltage referenced to the +50V rail
PoE Current Limit Response
Classification and Power-up
Powering a PoE Device
Detection
Detection
Delay PoE
Rev. 1.0
Classification
t
PoE
LIM
t
Classification
CLASS_CYCLE
t
PWRUP
Power-on
Ch1: PoE output voltage referenced to the +50V rail
Overload During Classification
Midspan Backoff after bad
Classification result
Detection Time
g
t
BOM
T
DETECT