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TPS2383 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2383 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 27 page  TPS2383 SLUS559B − APRIL 2003 − REVISED JULY 2004 OCTAL POWER SOURCING EQUIPMENT POWER MANAGER 1 www.ti.com 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) 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 APPLICATION DIAGRAM UDG−03061 P N G RS V48 GND TPS2383 PSE (1 Port) + PPTC Fuse RG MSP430 Controller − Optically Coupled I2C Serial Bus 1 2 3 6 4 5 7 8 1 2 3 6 4 5 7 8 568A 568A brn w/brn w/blue blue blue brn w/brn w/blue org w/org grn w/grn w/grn org w/org grn Up to 350 feet of category 5 cable 48−V Supply RJ−45 RJ−45 CT Choke CT Choke TX RX PD Signature PD DC/DC Supply SWITCH/HUB POWERED DTR TX RX CT Choke CT Choke 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. Copyright 1999 − 2004, Texas Instruments Incorporated |
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