TI TPS2379DDAR

控制器（PD）25 WIEEE 802.3

Overview

The TPS2379DDAR device is an 8-pin integrated circuit that contains all of the features needed to implement an IEEE802.3at type-2 powered device (PD) such as Detection, Classification, Type 2 Hardware Classification, and 140-mA inrush current limit during startup. The low 0.5-Ω internal switch resistance, combined with the enhanced thermal dissipation of the PowerPAD package, enables this controller to continuously handle up to 0.85 A. The TPS2379DDAR integrates a low 0.5-Ω internal switch to allow for up to 0.85 A of continuous current through the PD during normal operation. The TPS2379DDAR device supports higher-power applications through an external pass transistor. The TPS2379DDAR contains several protection features such as thermal shutdown, current limit foldback, and a robust 100-V internal switch.

The TPS2379 device is an 8-pin integrated circuit that contains all of the features needed to implement an IEEE802.3at type-2 powered device (PD) such as Detection, Classification, Type 2 Hardware Classification, and 140-mA inrush current limit during startup. The low 0.5-Ω internal switch resistance, combined with the enhanced thermal dissipation of the PowerPAD package, enables this controller to continuously handle up to 0.85 A. The TPS2379 integrates a low 0.5-Ω internal switch to allow for up to 0.85 A of continuous current through the PD during normal operation. The TPS2379 device supports higher-power applications through an external pass transistor. The TPS2379 contains several protection features such as thermal shutdown, current limit foldback, and a robust 100-V internal switch.

Features

• IEEE 802.3at type-2 hardware classification with a status flag

• Auxiliary gate driver for high-power expansion

• Robust 100-V, 0.5-Ω hot-swap MOSFET

• Package | Pins: HSOIC (DDA) | 8

• Operating temperature range (°C): -40 to 85

Applications

• Pico-base stations

• Security cameras

• Multiband access points

• Video and VoIP telephones

• IEEE 802.3at-compliant devices 

• Universal power over Ethernet (UPOE) compliant devices