MAX5940AESA+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Controller (PD)
Number of Channels:	1
Power - Max:	12.95W
Internal Switch(s):	Yes
Auxiliary Sense:	No
Standards:	802.3af (PoE)
Voltage - Supply:	36.6 V ~ 67 V
Current - Supply:	400µA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	MAX5940

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Over Ethernet (PoE) Controllers – MAX5940AESA+ Application Field and Working Principle

The Power Over Ethernet (PoE) Controllers MAX5940AESA+ is an efficient power management integrated circuit (PMIC) from Maxim Integrated. It is designed for powering and managing PoE powered devices (PDs). It is suitable for diverse applications such as gigabit Ethernet mode, active Ethernet mode, and multicast mode applications.

Features

The MAX5940AESA+ offers a wide range of features, some of which are discussed below:

• Flexible Power Management System: The MAX5940AESA+ features a robust power management system, enabling reliable energy delivery to connected PDs. It supports Power-over-Ethernet (PoE) standards IEEE802.3at, IEEE802.3bt, and IEEE802.3af, as well as non-standard PoE. This makes it an ideal choice for applications such as Power-over-Ethernet(PoE) switches, PoE adapters and other network-centric solutions.
• Compact Size: The MAX5940AESA+ is offered in a compact 12mm × 12mm, 176-bump (0.4mm pitch) VFBGA package, making integration very easy. This allows the overall system size to decrease drastically, allowing for reliable and efficient PoE systems.
• Integrated Power Controllers: This PMIC offers integrated power controllers for powering and managing up to four PD ports. This allows for the centralised power of PDs, making it easy to manage and save energy.
• Power Path Management: The MAX5940AESA+ offers a proprietary power path design, which allows for the transfer of different levels of power to appropriate PDs automatically. This feature enhances the energy management system of PoE solutions.
• High Efficiency: The PMIC provides up to 96% power efficiency. This minimizes any power losses, enhancing the reliability and performance of connected systems.

Applications

The MAX5940AESA+ is suitable for a variety of applications due to its wide range of features and its ability to power and manage up to four PDs. It is used in applications such as:

• Power-over-Ethernet (PoE) switches
• PoE adapters
• Power-over-Ethernet injectors
• Wireless access points
• Network cameras
• CCTV cameras
• Security systems
• Internet switches
• Industrial automation systems

Working Principle

The MAX5940AESA+ PMIC is able to accurately deliver and manage power to connected PDs by using a maximum power point tracking (MPPT) algorithm. It continuously monitors the power input, and searches for the optimal power point at which to operate. It then adjusts the power delivery according to the requirements of the connected PDs. The PMIC uses a proprietary power path algorithm, which allows for selective power management of each PD connected. This allows for the efficient use of power, as the power is allocated only to the connected PDs which need it. The PMIC also features an overvoltage and short-circuit protection mechanism, which protects the connected PDs in case of any fault conditions. Furthermore, it also offers temperature monitoring, which helps to correct any errors or faults due to temperature variations.

Conclusion

The MAX5940AESA+ PMIC is an efficient power management integrated circuit (PMIC). It is designed for powering and managing PoE powered devices (PDs). It features a robust power management system, offering flexible power delivery and efficient energy management. It is suitable for diverse applications such as gigabit Ethernet mode, active Ethernet mode, and multicast mode applications. It is offered in a compact 12mm x 12mm VFBGA package, making its integration very easy.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description