TPS2379 Texas instruments

TPS2379

Уточнить цену

TPS2379

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

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.

IEEE 802.3at Type-2 Hardware Classification With
Status Flag
Auxiliary Gate Driver for High-Power Expansion
Robust 100-V, 0.5-Ω Hotswap MOSFET
1A (Typical) Operating Current Limit
140 mA (Typical) Inrush Current Limit
DC-DC Converter Enable
15 kV/8 kV System-level ESD Capability
PowerPAD™ HSOP Package

Vin (min) (V)	0
Vin (max) (V)	57
PoE current limit (min) (mA)	850
PoE inrush limit (mA) (typ)	140
rDS(on) per FET (typ) (mΩ)	420
PoE standards supported	802.3at Type 1 (802.3af), 802.3at Type 2, Non Standard
PD power level	13W, 25W, >25W
DC/DC control	PD Only
Fault response	Auto Retry
Features	Thermal shutdown
Operating temperature range (°C)	-40 to 85
Rating	Catalog