Details, datasheet, quote on part number: TPS2388RTQR
PartTPS2388RTQR
CategorySemiconductors => Power Management => Power Over Ethernet (PoE)/LAN Solutions => Power Sourcing Equipment
Part familyTPS2388 IEEE 802.3at 8-Port Power-over-Ethernet PSE
TitlePower Switch ICs - POE/LAN IEEE 802.3at 8-Port Power-over-Ethernet
DescriptionIEEE 802.3at 8-Port Power-over-Ethernet PSE 56-QFN -40 to 125
CompanyTexas Instruments Inc.
StatusACTIVE
ROHSY
SampleYes
DatasheetDownload TPS2388RTQR datasheet
Specifications 
Vin(Max)(V)57
Vin(Min)(V)44
Operating Temperature Range(C)-40 to 125
ILIMProgrammable
Package GroupQFN
MPS MethodDC Disconnect
ICUTProgrammable
Approx. Price (US$)3.75 | 1ku
PoE Standards Supported802.3at Type 1 (802.3af),802.3at Type 2
FeaturesFast shutdown,Multi Level Port Priority,Over Current Reporting,Over Temp Reporting,Port remapping
FETExternal
No. of PSE Ports8
Pair ControlAlternative A
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
56RTQVQFNS-PQFP-N2000LARGE T&RTPS2388RTQ 88.9.5
Evaluation Kits
TPS2388EVM-612: TPS2388 Evaluation Module for IEEE802.3at PoE PSE applications

Others parts numbering
TPS2388RTQT
TPS2388EVM-612: Power Management IC Development Tools TPS2388 EvalMod for 802.3at PoE PSE apps

 

Features, Applications

The an 8-channel power source equipment (PSE) controller engineered to insert power onto Ethernet cable according to IEEE 802.3at-2012 standard (or 802.3at). The PSE controller can detect powered devices (PDs) that have a valid signature, determine the power requirements according to the classification, and apply power through either one (Type -1) or twoevent (Type-2) physical classification. The TPS2388 also has the flexibility to support UPoE and other non-standard loads. The Port remapping and the device pinout allow designers to enable 2-layer PCB designs and simplify software migration from previous generation PSE devices. The external FET architecture allows designers to further balance size, efficiency, thermal, and solution cost requirements. The current foldback reduces thermal stress on the external MOSFETs during startup and overload conditions allowing the use of cheaper FETs. The Fast Shutdown (OSS) input provides up to eight levels of per port shutdown priority for applications that require the immediate disabling of multiple ports. Device Information(1)

PART NUMBER TPS2388 PACKAGE VQFN (56) BODY SIZE (NOM) 8.00 mm

Fully IEEE 802.3at Compliant Port Re-Mapping 1- and 3-Bit Fast Port Shutdown Input "Never Fooled" 4-Point Detection Type 1 and Type 2 PD Classification Programmable Current Limit With Foldback DC Disconnect Detection Flexible Processor Controlled Operating Modes Semiauto Manual 14-Bit Port Current and Voltage Monitoring 100-ms Rolling Port Current Averaging 2% Current Sensing Accuracy 0.255- Sense Resistor With Kelvin Sense I2C Communication I2C Watchdog for Failsafe Operation 8- and 16-Bit Access Mode Selectable to 125C Temperature Operation 56-Lead VQFN Package

Enterprise Switches and Routers SoHo Switches and Routers PoE Pass-Through Power Modules Network Video Recorders (NVRs)

(1) For all available packages, see the orderable addendum at the end of the data sheet.

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.

Feature Description................................................. Device Functional Modes........................................ Programming.......................................................... Register Maps.........................................................

Absolute Maximum Ratings...................................... 6 ESD Ratings............................................................ 6 Recommended Operating Conditions....................... 6 Thermal Information.................................................. 7 Electrical Characteristics........................................... 7 Timing Requirements............................................. 10 Switching Characteristics........................................ 11 Typical Characteristics............................................ 12

Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks........................................................... Electrostatic Discharge Caution............................ Glossary................................................................

DATE August 2017 REVISION * NOTES 1st public release of data sheet.
Submit Documentation Feedback Product Folder Links: TPS2388

PIN NAME A1-4 AGND ATST_DCPL0 DGND DTST_DCPL1 GAT1-8 INT KSENSA/B KSENSC/D NO. I/O DESCRIPTION I2C A1-A4 address lines. These pins are internally pulled up to VDD. Analog ground. Connect to GND plane and exposed thermal pad. Used for internal test purposes, no bypass capacitor is needed. Digital ground. Connect to GND plane and exposed thermal pad. Port 1-8 output voltage monitor. Used for internal test purposes, no bypass capacitor is needed. Port 1-8 gate drive output. Interrupt output. This pin asserts low when a bit in the interrupt register is asserted. This output is open-drain. Kelvin point connection for SEN1-4 Kelvin point connection for SEN5-8


 

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