S IEEE 802.3af/at Compliant S Up to 40W for Single-Port PSE Applications S Integrated 0.5I Power MOSFET and Sense Resistor S PD Detection and Classification S Programmable Current Limit for Class 5 PDs S High-Capacitance Detection for Legacy Devices S Supports Both DC and AC Load Removal Detections S Current Foldback and Duty Cycle-Controlled Current Limit S LED Indicator for Port Status S Direct Fast-Shutdown Control Capability S Space-Saving, 28-Pin TQFN (5mm x 5mm) Package
(Voltages referenced to VEE, unless otherwise noted.) AGND, DET, LED ..................................................-0.3V to +80V OUT ......................................................-0.3V to (VAGND + 0.3V) OUTP.......................................................-6V to (VAGND + 0.3V) VEE_DIG...............................................................-0.3V to +0.3V OSC.........................................................................-0.3V to +6V EN, PWMEN, MIDSPAN, LEGACY, ILIM1, ILIM2....-0.3V to +4V Maximum Current Into LED................................................40mA Maximum Current Into OUT .........................Internally regulated Continuous Power Dissipation (TA = +70NC) 28-Pin TQFN (derate 34.5mW/NC above +70NC) ......2758mW Package Thermal Resistance (Note 1) BJA...............................................................................29NC/W BJC ................................................................................2NC/W Operating Temperature Range.......................... -40NC to +85NC Storage Temperature Range............................ -65NC to +150NC Junction Temperature .....................................................+150NC Lead Temperature (soldering, 10s) ................................+300NC Soldering Temperature (reflow) ......................................+260NC
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