PMIC - Power Over Ethernet (PoE) Controllers

Category Introduction

Power over Ethernet (PoE) controllers allow designers to transmit electrical current and data over a single Ethernet connection. Remote devices are powered through Ethernet cabling, eliminating the need for batteries, local power adaptors and additional power cabling. Bridge rectifier and N+1 O-Ring are two types of PoE controllers. Available features may include N and P-channel FETs, internal switches and automotive certification.

Product List

821 Items

Mfr Part #	Quantity Available	UnitPrice	Packaging	Product Status	Type	Number of Channels	Power - Max	Internal Switch(s)	Auxiliary Sense	Standards	Voltage - Supply	Current - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
TPS2375PWR-1 IC POE CNTRL 1 CHANNEL 8TSSOP Texas Instruments	56	$2.96	Tape & Reel (TR)	Active	Controller (PD)	1	12.95 W	Yes	No	802.3af (PoE)	0V ~ 57V	240µA	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP
LM5072MHX-80/NOPB IC POE CNTRL 1 CHANNEL 16HTSSOP Texas Instruments	110	$4.44	Tape & Reel (TR)	Active	Controller (PD), DC/DC	1	12.95 W	Both	Yes	802.3af (PoE)	9V ~ 70V	2mA (Max)	-40°C ~ 125°C	Surface Mount	16-PowerTSSOP (0.173", 4.40mm Width)	16-HTSSOP
LTC4267CDHC#PBF IC POE CNTRL 1 CHANNEL 16DFN Analog Devices Inc.	143	$5.10	Tube	Active	Controller (PD), DC/DC	1	12.95 W	No	No	802.3af (PoE)	57V (Max)	3mA (Max)	0°C ~ 70°C	Surface Mount	16-WFDFN Exposed Pad	16-DFN (5x3)
PD70200ILD-TR IC POE CNTRL 1 CHANNEL 12DFN Microchip Technology	230	$1.82	Tape & Reel (TR)	Active	Controller (PD)	1	47.7 W	Yes	No	802.3at (PoE+), 802.3af (PoE)	0V ~ 57V	1mA	-40°C ~ 85°C	Surface Mount	12-VFDFN Exposed Pad	12-DFN (4x3)
PM8800ATR IC POE CNTRL 1 CHANNEL 16HTSSOP STMicroelectronics	174	$3.26	Tape & Reel (TR)	Active	Controller (PD), DC/DC	1	12.95 W	Both	No	802.3af (PoE)	48V	3mA	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width) Exposed Pad	16-HTSSOP
NCP1083DER2G IC POE CNTRL 1 CHANNEL 20TSSOP onsemi	244	$4.01	Tape & Reel (TR)	Active	Controller (PD)	1	40 W	Both	Yes	802.3at (PoE+), 802.3af (PoE)	0V ~ 57V	-	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width) Exposed Pad	20-TSSOP-EP
TPS2372-3RGWT IC POE CNTRL 1 CHANNEL 20VQFN Texas Instruments	214	$3.51	Tape & Reel (TR)	Active	Controller (PD)	1	60 W	Yes	No	802.3at (PoE+), 802.3bt	0V ~ 57V	550µA	-40°C ~ 125°C	Surface Mount	20-VQFN Exposed Pad	20-VQFN (5x5)
LTC4257IS8#PBF IC POE CNTRL 1 CHANNEL 8SOIC Analog Devices Inc.	177	$3.07	Tube	Active	Controller (PD)	1	12.95 W	Yes	No	802.3af (PoE)	57V (Max)	3mA	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SO
TPS2375PW-1 IC POE CNTRL 1 CHANNEL 8TSSOP Texas Instruments	162	$3.26	Tube	Active	Controller (PD)	1	12.95 W	Yes	No	802.3af (PoE)	0V ~ 57V	240µA	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP
TPS2376DDA-H IC POE CNTRL 1 CHANNEL 8SOPWR Texas Instruments	307	$3.21	Tube	Active	Controller (PD)	1	12.95 W	Yes	No	802.3af (PoE)	0V ~ 57V	240µA	-40°C ~ 85°C	Surface Mount	8-PowerSOIC (0.154", 3.90mm Width)	8-SO PowerPad
LM5071MT-80/NOPB IC POE CNTRL 1 CHANNEL 16TSSOP Texas Instruments	50	$4.18	Tube	Active	Controller (PD), DC/DC	1	12.95 W	Both	Yes	802.3af (PoE)	1.8V ~ 60V	1mA	-40°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
LT4294IMS#PBF IC POE CNTRL 1 CHANNEL 10MSOP Analog Devices Inc.	204	$4.45	Tube	Active	Controller (PD)	1	71 W	No	Yes	802.3at (PoE+), 802.3af (PoE), 802.3bt	60V (Max)	2mA	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
LTC4267CDHC-3#PBF IC POE CNTRL 1 CHANNEL 16DFN Analog Devices Inc.	133	$5.06	Tube	Active	Controller (PD), DC/DC	1	12.95 W	No	No	802.3af (PoE)	57V (Max)	3mA (Max)	0°C ~ 70°C	Surface Mount	16-WFDFN Exposed Pad	16-DFN (5x3)
LM5072MH-80/NOPB IC POE CNTRL 1 CHANNEL 16HTSSOP Texas Instruments	96	$5.23	Tube	Active	Controller (PD), DC/DC	1	12.95 W	Both	Yes	802.3af (PoE)	9V ~ 70V	2mA (Max)	-40°C ~ 125°C	Surface Mount	16-PowerTSSOP (0.173", 4.40mm Width)	16-HTSSOP
MAX5971AETI+ IC POE CNTRL 1 CHANNEL 28TQFN Analog Devices Inc./Maxim Integrated	57	$10.30	Tube	Active	Controller (PSE)	1	40 W	Yes	No	802.3at (PoE+), 802.3af (PoE)	32V ~ 60V	2.5mA	-40°C ~ 85°C	Surface Mount	28-WFQFN Exposed Pad	28-TQFN (5x5)
LM5070SD-50/NOPB IC POE CNTRL 1 CHANNEL 16WSON Texas Instruments	134	$3.48	Tape & Reel (TR)	Active	Controller (PD), DC/DC	1	-	Both	No	802.3af (PoE)	1.8V ~ 75V	-	-40°C ~ 125°C	Surface Mount	16-WFDFN Exposed Pad	16-WSON (5x5)
LM5071MT-50/NOPB IC POE CNTRL 1 CHANNEL 16TSSOP Texas Instruments	159	$4.24	Tube	Active	Controller (PD), DC/DC	1	12.95 W	Both	Yes	802.3af (PoE)	1.8V ~ 60V	1mA	-40°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
LM5070MTC-80/NOPB IC POE CNTRL 1 CHANNEL 16TSSOP Texas Instruments	108	$4.20	Tube	Active	Controller (PD), DC/DC	1	-	Both	No	802.3af (PoE)	1.8V ~ 75V	-	-40°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
TPS23785BPWP IC POE CNTRL 1 CHANNEL 24HTSSOP Texas Instruments	120	$4.72	Tube	Active	Controller (PD), DC/DC	1	30 W	Both	No	802.3at (PoE+), 802.3af (PoE)	0V ~ 57V	960µA	-40°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width) Exposed Pad	24-HTSSOP
LTC4264CDE#PBF IC POE CNTRL 1 CHANNEL 12DFN Analog Devices Inc.	117	$5.48	Tube	Active	Controller (PD)	1	35 W	Yes	No	802.3af (PoE)	57V (Max)	3mA (Max)	0°C ~ 70°C	Surface Mount	12-WFDFN Exposed Pad	12-DFN (4x3)

About Power Over Ethernet (PoE) Controllers

What are Power Over Ethernet (PoE) Controllers?

Power Over Ethernet (PoE) Controllers

Power Over Ethernet (PoE) Controllers are specialized integrated circuits that manage the delivery of electrical power over Ethernet cables, enabling network devices to receive power and data through a single cable. These controllers work by injecting power into the Ethernet cable at the source (usually a switch or injector) and extracting it at the device end (such as IP cameras, VoIP phones, or wireless access points). The basic operating principle involves detecting a compatible device, negotiating the power level required, and maintaining efficient power delivery while ensuring data integrity.

Types of Power Over Ethernet (PoE) Controllers

1. Endspan PoE Controllers

Endspan PoE Controllers are integrated into network switches and routers, providing power directly from the network equipment. They are ideal for centralized power management and are commonly used in enterprise environments where multiple devices need to be powered simultaneously.

2. Midspan PoE Controllers

Midspan PoE Controllers, also known as PoE injectors, are standalone devices placed between the network switch and the powered device. They are suitable for retrofitting existing network infrastructures without replacing the entire switch, offering flexibility in deployment.

3. Single-Port PoE Controllers

Single-Port PoE Controllers are designed for applications where only one device needs to be powered. They are cost-effective solutions for small-scale installations or specific scenarios where only a single PoE-enabled device is required.

4. Multi-Port PoE Controllers

Multi-Port PoE Controllers can power multiple devices simultaneously, making them suitable for larger installations such as office buildings or industrial environments. They offer scalability and efficient power distribution across several devices.

How to choose Power Over Ethernet (PoE) Controllers?

When selecting PoE Controllers, consider the following key parameters:

Power Requirements: Determine the power needs of your devices and ensure the controller can deliver the necessary wattage.
Number of Ports: Choose between single-port or multi-port controllers based on the number of devices to be powered.
Compatibility: Ensure compatibility with existing network infrastructure and devices.
Standards Compliance: Verify compliance with IEEE standards such as 802.3af, 802.3at, or 802.3bt for interoperability.
Environmental Factors: Consider operating temperature ranges and protection against power surges or electrical noise.

Evaluate product quality by reviewing supplier certifications, customer reviews, and warranty offerings. Installation requirements should also be assessed, including space constraints and ease of integration into existing systems.

Applications of Power Over Ethernet (PoE) Controllers

1. Telecommunications

In the telecommunications industry, PoE Controllers are used to power VoIP phones, enabling seamless communication without the need for separate power adapters. They simplify installations and reduce clutter in office environments.

2. Surveillance Systems

PoE Controllers are crucial in surveillance systems, providing power to IP cameras across large areas. This setup allows for flexible camera placement and easy scalability of security networks.

3. Wireless Networking

In wireless networking, PoE Controllers power wireless access points, ensuring consistent connectivity in enterprise environments. They support the deployment of robust wireless networks without additional power infrastructure.

4. Building Automation

PoE Controllers are integral to building automation systems, powering devices like smart lighting, HVAC controls, and sensors. They contribute to energy-efficient building management and streamlined operations.

5. Industrial Automation

In industrial settings, PoE Controllers power various automation equipment, such as sensors and control panels, facilitating efficient data and power distribution in harsh environments.