Power Electronics / Power Management


Five-port SPoE controller

31 July 2024 Power Electronics / Power Management


The LTC4296-1 is an IEEE 802.3cg-compliant, five-port, single-pair power over Ethernet (SPoE), power sourcing equipment (PSE) controller. SPoE simplifies system design and installation, with standardised power and Ethernet data over a single-pair cable. The LTC4296-1 is designed for interoperability with 802.3cg powered devices (PDs) in 24 or 54 V systems. The LTC4296-1 delivers power using external, low drain-to-source on resistance (RDSON), N-channel MOSFETs, which minimise voltage drop and ensure application ruggedness.

High-side circuit breakers with analogue current limit provide controlled inrush and short-circuit protection. An optional low-side circuit breaker protects the negative output against back-feed faults and ground faults in non-isolated applications. PD classification is via the serial communication classification protocol, and maintain full voltage signature (MFVS) ensures that the full operating voltage is only applied to the cable when a PD is present. PD initiated sleep and wake are supported. The WAKEUP pin also supports wake-up forwarding. Telemetry, status, and software control features are accessed via an SPI bus interface with packet error code protection.

The LTC4296-1 provides a versatile SPoE, PSE solution for 10BASE-T1L controllers and switches.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Cutting-edge solutions for Africa’s clean energy future
Power Electronics / Power Management
As Africa pushes towards reliable, affordable, and sustainable energy, Sungrow is driving transformation with cutting-edge innovations that enhance grid stability, reduce energy costs, and expand access to clean power.

Read more...
Transformer protection is a critical safeguard for municipal power stability
Power Electronics / Power Management
Transformer protection is not just a technical requirement; it is a vital component in ensuring the resilience and operational integrity of South Africa’s municipal power infrastructure.

Read more...
Microchip enhances TrustMANAGER platform
Altron Arrow DSP, Micros & Memory
Firmware over-the-air updates and remote cryptographic key management provide scalable solutions for addressing IoT security challenges.

Read more...
Adaptive optics’ power solution
Altron Arrow Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.

Read more...
Reliable power solution
Conical Technologies Power Electronics / Power Management
The Mibbo MLD-120W-xxVx is a robust DIN-rail mounted DC-DC converter with a 120 W output capacity specifically designed for industrial and automation applications.

Read more...
Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.

Read more...
Wide input voltage buck-boost converter
Altron Arrow Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.

Read more...
High-density power module for AI at the edge applications
Altron Arrow Power Electronics / Power Management
The MCPF1412 power module from Microchip has integrated I2C and PMBus interfaces for flexible configuration and monitoring.

Read more...
When it comes to long-term reliability of RF amplifier ICs, focus first on die junction temperature
Altron Arrow Editor's Choice Telecoms, Datacoms, Wireless, IoT
When considering the long-term reliability of integrated circuits, a common misconception is that high package or die thermal resistance is problematic. However, high or low thermal resistance, by itself, tells an incomplete story.

Read more...
High-performance processor for edge-AI
Altron Arrow DSP, Micros & Memory
The STM32MP23 microprocessor from STMicroelectronics is the latest addition to the STM32MP2 series, designed to meet the demands of industrial, IoT, and edge AI applications.

Read more...