Specification	TPS2377PW

Auxiliary Sense	False
Current - Supply	240 µA
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-TSSOP
Package / Case [custom]	0.173 "
Package / Case [custom]	4.4 mm
Power - Max [Max]	12.95 W
Standards	802.3af (PoE)
Supplier Device Package	8-TSSOP
Voltage - Supply [Max]	57 V
Voltage - Supply [Min]	0 V

TPS2377-1 Series

Class 3 PoE PD with legacy UVLO threshold & auto-retry

Part	Standards	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Power - Max [Max]	Current - Supply	Voltage - Supply [Max]	Supplier Device Package	Mounting Type	Number of Channels	Package / Case [custom]	Package / Case [custom]
Texas Instruments TPS2377D	802.3af (PoE)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	12.95 W	240 µA	57 V	8-SOIC	Surface Mount	1
Texas Instruments TPS2377DRG4	802.3af (PoE)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	12.95 W	240 µA	57 V	8-SOIC	Surface Mount	1
Texas Instruments TPS2377DR	802.3af (PoE)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	12.95 W	240 µA	57 V	8-SOIC	Surface Mount	1
Texas Instruments TPS2377D-1G4	802.3af (PoE)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	12.95 W	240 µA	57 V	8-SOIC	Surface Mount	1
Texas Instruments TPS2377DR-1	802.3af (PoE)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	12.95 W	240 µA	57 V	8-SOIC	Surface Mount	1
Texas Instruments TPS2377PWR	802.3af (PoE)	8-TSSOP			85 °C	-40 °C	12.95 W	240 µA	57 V	8-TSSOP	Surface Mount	1	0.173 "	4.4 mm
Texas Instruments TPS2377PW	802.3af (PoE)	8-TSSOP			85 °C	-40 °C	12.95 W	240 µA	57 V	8-TSSOP	Surface Mount	1	0.173 "	4.4 mm
Texas Instruments TPS2377D-1	802.3af (PoE)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	12.95 W	240 µA	57 V	8-SOIC	Surface Mount	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	450	$ 1.95
Texas Instruments	TUBE	1	$ 2.60
		100	$ 2.15
		250	$ 1.54
		1000	$ 1.16

Description

General part information

TPS2377-1 Series

These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af-compliant powered device (PD). The TPS2375-1 and TPS2377-1 are second generation PDCs (PD Controllers) featuring a 100-V ratings and true open-drain, power-good function. These devices are auto-retry versions of selected TPS2375 family members. Information on the TPS2375/6/7 devices can be found on the TPS2375/6/7 data sheet (SLVS525A).

In addition to the basic functions of detection, classification, and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375-1 has 802.3af-compliant UVLO limits, and the TPS2377-1 has legacy UVLO limits.

The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.

Documents

Technical documentation and resources

TPS2377PW

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TPS2377PW

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Technical Specifications

TPS2377-1 Series

Pricing

Description

TPS2377-1 Series

Documents

Lightning Surge Considerations for PoE Powered Devices

Designing an EMI Compliant PoE with Isolated Flyback

Power Management Guide 2018 (Rev. R)

Powered Device Controllers Comparison

TPS237x: IEEE 802.3af PoE Powered Device Controllers datasheet (Rev. B)

25-W, High-Power PoE Using the TPS2376-H

PoE PD Schematic Review Guidelines

Practical Guidelines EMI Compliant PoE

PoE Powered Devices Debug Guidelines

TPS2377-1 Series