TPS2372 Series

IEEE 802.3bt PoE high-power PD interface with automatic MPS & autoclass

Catalog

IEEE 802.3bt PoE high-power PD interface with automatic MPS & autoclass

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Current - Supply	Power - Max [Max]	Package / Case	Number of Channels	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Standards	Secondary Attributes	Type	Utilized IC / Part	Contents	Supplied Contents	Function
Texas Instruments TPS2372-3RGWT	0 V	57 V	Surface Mount	550 µA	60 W	20-VQFN Exposed Pad	1	125 °C	-40 °C	20-VQFN (5x5)	802.3at (PoE+) 802.3bt
Texas Instruments TPS2372-3RGWR	0 V	57 V	Surface Mount	550 µA	60 W	20-VQFN Exposed Pad	1	125 °C	-40 °C	20-VQFN (5x5)	802.3at (PoE+) 802.3bt
Texas Instruments TPS2372-4RGWT	0 V	57 V	Surface Mount	550 µA	90 W	20-VQFN Exposed Pad	1	125 ¯C	-40 °C	20-VQFN (5x5)	802.3at (PoE+) 802.3bt
Texas Instruments TPS2372-4RGWR	0 V	57 V	Surface Mount	550 µA	90 W	20-VQFN Exposed Pad	1	125 ¯C	-40 °C	20-VQFN (5x5)	802.3at (PoE+) 802.3bt
Texas Instruments TPS2372-4EVM-006												On-Board LEDs Test Points	Power Management	TPS2372	Board(s)	Board(s)	Power Over Ethernet (POE)

Catalog

IEEE 802.3bt PoE high-power PD interface with automatic MPS & autoclass

Key Features

• IEEE 802.3bt (Draft) PD Solution for Type 3 or Type 4 PoESupports Power Levels for Type-4 ( TPS2372-4) 90-W and Type-3 ( TPS2372-3) 60-W OperationRobust 100 V Hotswap MOSFETTPS2372-4 (typ.): 0.1-Ω, 2.2-A Current LimitTPS2372-3 (typ.): 0.3-Ω, 1.85-A Current LimitAllocated Power Indicator OutputsPG Output with Inrush Completion DelayCompliant to PSE InrushAutomatic Maintain Power Signature (MPS)Auto-adjust MPS for Type 1-2 or 3-4 PSESupports Ultra-Low Power Standby ModesSupports Autoclass OperationSupports PoE++ PSE-40°C to 125°C Junction Temperature Range20-lead VQFN PackageIEEE 802.3bt (Draft) PD Solution for Type 3 or Type 4 PoESupports Power Levels for Type-4 ( TPS2372-4) 90-W and Type-3 ( TPS2372-3) 60-W OperationRobust 100 V Hotswap MOSFETTPS2372-4 (typ.): 0.1-Ω, 2.2-A Current LimitTPS2372-3 (typ.): 0.3-Ω, 1.85-A Current LimitAllocated Power Indicator OutputsPG Output with Inrush Completion DelayCompliant to PSE InrushAutomatic Maintain Power Signature (MPS)Auto-adjust MPS for Type 1-2 or 3-4 PSESupports Ultra-Low Power Standby ModesSupports Autoclass OperationSupports PoE++ PSE-40°C to 125°C Junction Temperature Range20-lead VQFN Package

Description

The TPS2372 contains all of the features needed to implement an IEEE802.3at or IEEE802.3bt (draft) (Type 1-4) powered device (PD). The low internal switch resistance allows the TPS2372-4 and TPS2372-3 to support high power applications up to 90 W and 60 W respectively. Assuming 100-meter CAT5 cable, this translates into 71.3 W and 51 W at PD input. The TPS2372 operates with enhanced features. The Automatic MPS function enables applications requiring very low power standby modes. The TPS2372 automatically generates the necessary pulsed current to maintain the PSE power. An external resistor is used to enable this functionality and to program the MPS pulsed current amplitude. The TPS2372 also implements a delay function to allow the remote PSE to complete its inrush phase before releasing the Power Good (PG) output. This ensures that the IEEE802.3bt (draft) startup requirements are met. The Autoclass enable input also allows advanced system power optimization modes compliant with IEEE802.3bt (draft) standard. The TPS2372 contains all of the features needed to implement an IEEE802.3at or IEEE802.3bt (draft) (Type 1-4) powered device (PD). The low internal switch resistance allows the TPS2372-4 and TPS2372-3 to support high power applications up to 90 W and 60 W respectively. Assuming 100-meter CAT5 cable, this translates into 71.3 W and 51 W at PD input. The TPS2372 operates with enhanced features. The Automatic MPS function enables applications requiring very low power standby modes. The TPS2372 automatically generates the necessary pulsed current to maintain the PSE power. An external resistor is used to enable this functionality and to program the MPS pulsed current amplitude. The TPS2372 also implements a delay function to allow the remote PSE to complete its inrush phase before releasing the Power Good (PG) output. This ensures that the IEEE802.3bt (draft) startup requirements are met. The Autoclass enable input also allows advanced system power optimization modes compliant with IEEE802.3bt (draft) standard.