TPS2383 Datasheet, PDF (1/27 Pages) Texas Instruments – OCTAL POWER SOURCING EQUIPMENT POWER MANAGER

TPS2383
SLUS559B − APRIL 2003 − REVISED JULY 2004
OCTAL POWER SOURCING EQUIPMENT
POWER MANAGER
FEATURES
D Compliant to Power Over Ethernet IEEE
802.3af Standard
D Two-Point 25-kΩ Resistor Discovery
D Capacitive Detection for Non-Compliant
Legacy Loads
D Power Classification
D Controlled di/dt Ramp Power-Up and
Power-Down for EMI Reduction
D Current Management for Charging Powered
Device Bulk Capacitance
D Electronic Circuit Breaker
D Fault detection
D Input Undervoltage Lockout (UVLO)
APPLICATION DIAGRAM
D Load Overcurrent and Undercurrent
Detection
D 12-Bit Port Current and Voltage Acquisition
D Standard Slave I²C Serial Interface
D 5-Bit Serial Address Selectability
D Discovery and/or Classification Bypass
Modes Selectable Via Register
D Opto-Coupler Compatible SDA and SCL
Lines for System Ground Isolation
D Dual Color LED Driver for Port Status
D Hardware FAULT Interrupt
D Single +48-V Supply Capable
APPLICATIONS
D PoE Switches
D Mid-Span Injectors
SWITCH/HUB
CT Choke
TX
CT Choke
RX
PPTC Fuse
TPS2383
PSE
(1 Port)
P
N
V48
G
GND RS
RG
RJ−45
w/grn
1
POWERED DTR
RJ−45
w/grn
1
CT Choke
grn
2
grn
2
w/org
3
w/org
3
CT Choke
org
6
org
6
blue
4
blue
4
w/blue
5
w/blue
5
w/brn
7
w/brn
7
brn
8
brn
8
568A
568A
Up to 350 feet of category 5 cable
PD
Signature
RX
TX
PD
DC/DC
Supply
+
48−V
Supply
−
Optically Coupled
I2C Serial Bus
MSP430
Controller
UDG−03061
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  1999 − 2004, Texas Instruments Incorporated
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