TPS2384 Texas instruments

TPS2384

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TPS2384

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Описание

The TPS2384 is a quad-port power sourcing equipment power manager (PSEPM) and is compliant to the Power-over-Ethernet (PoE) IEEE 802.3af standard. The TPS2384 operates from a single 48-V supply and over a wide temperature range (–40°C to 125°C). The integrated output eliminates two external components per port (FET and sense resistor) and survives 100-V transients. Four individual 15-bit A/D converters are used to measure port resistance, voltage, current and die temperature making PSE solutions simple and robust. The TPS2384 comes with a comprehensive software solution to meet the most demanding applications which can serve as a core for all PoE system designs.TheTPS2384 is available in either 64-pin PowerPAD™ down (PAP) or 64-pin PowerPAD™ up (PJD) packages.

Quad-port power management with integrated switches and sense resistors
Compliant to IEEE 802.3af standard
Operates from a single 48-V input supply
Individual port 15-bit A/D
Auto, semi-auto and power management operating modes
Controlled current ramps for reduced EMI and charging of PD’s bulk capacitance
I²C clock and oscillator watchdog timers
Overtemperature protection
DC and DC modulated disconnect
Supports legacy detection for non-compliant PDs
Supports AC disconnect
High-speed 400-kHz I²C interface
Comprehensive power management software available
Operating temperature range –40°C to 125°C

Vin (min) (V)	44
Vin (max) (V)	57
ILIM	425mA TYP
PoE standards supported	802.3at Type 1 (802.3af)
FET	Internal
MPS method	AC/DC Disconnect
Pair control	2-Pair Alt A or B
Operating temperature range (°C)	-40 to 125
Features	Integrated FET, Over Current Reporting, Over Temp Reporting
Number of PSE ports	4
Rating	Catalog