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