Maxim Integrated MAX5941ACSE+ Ethernet Power Controllers

The MAX5941ACSE+ from Maxim Integrated is a robust, single-port Power-over-Ethernet (PoE) controller, designed to facilitate the delivery of power alongside data over standard Ethernet networks. This device is compliant with the IEEE 802.3af standard, ensuring compatibility with other PoE-capable devices and providing a seamless and efficient power solution for networked equipment such as IP cameras, wireless access points, and VoIP phones.

Encased in a compact 16-pin narrow SO package, the MAX5941ACSE+ integrates a range of features to ensure reliable operation in various applications. It incorporates a high-performance switching regulator controller, which enables the device to provide a regulated output voltage to power the connected PD (Powered Device). With the ability to support a wide input voltage range from 36V to 57V, the MAX5941ACSE+ offers versatility for different network configurations and power requirements.

The controller includes advanced protection features such as current limit, thermal shutdown, and under-voltage lockout, safeguarding both the PD and the controller itself from electrical hazards. The MAX5941ACSE+ also features an auto-restart function that ensures continued operation after fault conditions are cleared, minimizing downtime and maintenance efforts.

One of the key benefits of the MAX5941ACSE+ is its signature detection capability, which allows it to detect the presence of a compliant PD before power is applied, preventing damage to non-PoE devices. Additionally, the classification feature enables the controller to determine the power classification signature of the connected PD, ensuring that the correct power allocation is provided based on the device's requirements.

The MAX5941ACSE+ is an ideal solution for network administrators and system integrators looking to implement PoE capabilities into their designs. With its robust feature set, compliance with the IEEE 802.3af standard, and ease of integration, this controller stands out as a reliable and efficient choice for powering Ethernet-connected devices.

For more details and technical specifications, datasheets and support documentation are available on the Maxim Integrated website.