The TPS2375D is an IEEE 802.3af PoE Powered Device Controller features 100V ratings and a true open-drain, power-good function. In addition to the basic functions of detection, classification and under-voltage lockout (UVLO), this controller includes an adjustable inrush limiting feature. It has 802.3af compliant UVLO limits and incorporates a voltage offset of 1.5V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive. The PD input is typically an RJ-45 (8-pin) connector, referred to as the power interface (PI). PD input requirements differ from PSE output requirements to account for voltage drops in the cable and margin. The specification uses a cable resistance of 20R to derive the voltage limits at the PD from the PSE output requirements.
Integrated 0.58R, 100V low-side switch
15kV System level ESD capable
Supports use of low-cost silicon rectifiers
Programmable inrush current control
Fixed 450mA current limit
Fixed and adjustable UVLO options
Open-drain, power-good reporting
Over-temperature protection
Green product and no Sb/Br
IC can be damaged by ESD. We recommend that all ICs be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
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