Addressing market demands for more intelligence in smart building and factory automation applications at the network edge, Analog Devices, Inc. has claimed the industry’s first long-reach, single-pair power over Ethernet (SPoE) power sourcing equipment (PSE) and power device (PD) solutions. The new LTC4296-1 and LTC9111 SPoE controllers address the delivery of power and data to devices, even when located in remote, difficult to access endpoint locations.
(Source: Analog Devices, Inc.)
The LTC9111 is an IEEE 802.3cg compliant single-pair SPoE PD controller with a wide 2.3 V to 60 V operating range and polarity correction. The industrial SPoE PD controller includes an integrated 3.5-V standby regulator and charge pump to enhance the external N-channel MOSFET. The device is available in 12-pin MSOP and DFN 4 × 3-mm packages.
The LTC4296-1 is an IEEE 802.3cg compliant five-port SPoE PSE controller. It is designed for interoperability with 802.3cg devices in 24-V or 54-V systems. Using external, low RDS(ON), N-channel MOSFETs minimizes voltage drop and aids in maintaining ruggedness. Easy to integrate with ADI’s 10BASE-T1L transceiver portfolio, the LTC4296-1 supports both SPoE and power over data line (PoDL) variants. The device is available in a 48-lead, 7 × 7-mm QFN package.
Both products support the serial communication classification protocol (SCCP), and common features include last-mile connectivity through real-time power management, telemetry, and extremely low standby power consumption. Applications include systems such as operational technology (OT), building and factory automation, security, traffic control, as well as field instruments and switches.
When combined with the ADI Chronous ADIN1100 and ADIN1110 10BASE-T1L industrial Ethernet solutions, applications can transfer both power and data over one kilometer reliably, which is a significant improvement over previous Ethernet standards, said the company.
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