TPS2388

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS2388 SLUSC25A – FEBRUARY 2015 – REVISED AUGUST 2017 TPS2388 IEEE 802.3at 8-Channel Power-over-Ethernet PSE Controller 1 Features 1 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-Ω Sense Resistor With Kelvin Sense I2C Communication – I2C Watchdog for Failsafe Operation – 8- and 16-Bit Access Mode Selectable –40°C to 125°C Temperature Operation 56-Lead VQFN Package 2 Applications Enterprise Switches and Routers SoHo Switches and Routers PoE Pass-Through Power Modules Network Video Recorders (NVRs) 3 Description The TPS2388 is 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 remapp...