PM8803: Features, Specs & More

Power-over-Ethernet (POE) technology has revolutionized the way devices receive both data and power through a single Ethernet cable. Among the solutions available, the STMicroelectronics PM8803 stands out as a high-efficiency IEEE 802.3AT POE-PD controller. This component is designed to provide reliable power management while maintaining compact form factors and superior performance. In this comprehensive article, we'll delve into the intricacies of the PM8803, uncovering its definition, key features, specifications, applications, and a closer look at its manufacturer.

Catalog

PM8803's Overview

Key Features

Specifications

Applications

PM8803's Manufacturer

Conclusion

PM8803's Overview

The PM8803 is a dedicated PD controller capable of handling Power over Ethernet loads efficiently. It features an under-voltage lockout (UVLO) turn-on threshold of 35 volts. The UVLO turn-off threshold is set at 31 volts. Its maximum current limit reaches 690 milliamperes. Typical inrush current is measured at 140 milliamperes. The device can operate at a maximum oscillating frequency of 1 MHz. It also supports a maximum duty cycle of 85 percent.

Key Features

Let's delve into the standout features that make the PM8803 a standout in the world of electronics:

· It supports the IEEE 802.3AT standard for high-efficiency power delivery.

· It features an UVLO (Under-Voltage Lockout) turn-on threshold of 35 V.

· It has an UVLO turn-off threshold of 31 V, preventing undervoltage damage.

· It can handle a maximum current limit of 690 mA, ensuring safe operation.

· Its typical inrush current is only 140 mA, reducing stress on power sources.

· It operates with a maximum oscillating frequency of 1 MHz, allowing fast switching.

· It maintains a maximum duty cycle of 85%, optimizing power efficiency.

· The device is programmable, offering flexibility in system design.

· It can operate in temperatures from -40°C to 85°C, suitable for industrial applications.

· It comes in a compact HTSSOP EP package with 20 pins, perfect for space-constrained PCBs.

· The surface-mount device design simplifies manufacturing and integration.

Specifications

Now, let's take a closer look at the technical specifications that define the capabilities of the PM8803:

 * PM8803's Datasheet

Applications

The PM8803 is ideal for devices requiring reliable PoE power reception. It is commonly used in:

· IP cameras for surveillance networks.

· VoIP phones in enterprise environments.

· Wireless access points for high-speed connectivity.

· Network switches with integrated PoE.

· Industrial IoT devices needing robust power management.

PM8803's Manufacturer

STMicroelectronics, often abbreviated as ST, is a global semiconductor manufacturer with a long-standing reputation for producing innovative and high-quality electronic components. With headquarters in eneva, Switzerland, and a strong international presence, STMicroelectronics is a leading player in the semiconductor industry. They specialize in designing and manufacturing a wide range of semiconductor devices, including microcontrollers, sensors, power management solutions, and more. STMicroelectronics is trusted by industries worldwide, including automotive, consumer electronics, industrial, and telecommunications, for their cutting-edge technology and commitment to advancing the field of electronics.

Conclusion

The STMicroelectronics PM8803 is a compact, high-performance PoE-PD controller built to support IEEE 802.3AT power delivery. Its programmable features, wide operating temperature range, and robust current management make it an excellent choice for modern networked devices. Integrating the PM8803 into your electronics design ensures reliable, efficient, and safe PoE operation.