DP83848C-POE-EK National Semiconductor, DP83848C-POE-EK Datasheet - Page 75

• Manufacturer Part Number: DP83848C-POE-EK
• Description: BOARD EVALUATION DP83848C
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of DP83848C-POE-EK

• Main Purpose: Special Purpose DC/DC, Power Over Ethernet
• Outputs And Type: 1, Isolated
• Power - Output: 24W
• Voltage - Output: 3.3V
• Current - Output: 7.3A
• Voltage - Input: 39 ~ 57V
• Regulator Topology: Flyback
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM5072
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

8.2.19 10 Mb/s Heartbeat Timing
8.2.20 10 Mb/s Jabber Timing
T2.19.1
T2.19.2
T2.20.1
T2.20.2
Parameter
Parameter
PMD Output Pair
TXE
COL
TX_CLK
COL
TX_EN
CD Heartbeat Delay
CD Heartbeat Duration
Jabber Activation Time
Jabber Deactivation Time
Description
Description
T2.20.1
All 10 Mb/s modes
All 10 Mb/s modes
T2.19.1
75
Notes
Notes
T2.19.2
T2.20.2
Min
Min
1200
1000
Typ
Typ
500
85
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Max
Max
Units
Units
ms
ms
ns
ns