MAX5971AETI+T

The MAX5971AETI+T is a single port, 40W, IEEE 802.3af/at PSE controller with integrated MOSFET in 28 pin TQFN package. This power sourcing equipment (PSE) power controller is designed for use in IEEE 802.3af/at-compliant PSE. It provides powered device (PD) discovery, classification, current limit and AC/DC load disconnect detections. The device also supports new class 5 and 2 event classification for detection and classification of high power PDs. The MAX5971A provides up to 40W to a single port (class 5 enabled) and still provides high capacitance detection for legacy PDs. It also provides input UVLO, input overvoltage lockout, overtemperature detection, output voltage slew rate limit during start-up and LED status indication. It is typically used in single port PSE end point applications, single port PSE power injectors (midspan applications), switches/routers, wireless LAN access point/WiMAX and base station.

• Operating voltage range from 32V to 60V
• Operating temperature range from -40°C to 85°C
• Integrated 0.5ohm power MOSFET and sense resistor
• Supply current of 2.5mA and VEE undervoltage lockout of 28.5V
• Programmable current limit for class 5 PDs
• High capacitance detection for legacy devices
• Supports both DC and AC load removal detections
• Current foldback and duty cycle controlled current limit
• LED indicator for port status
• Direct fast shutdown control capability

Applications

Communications & Networking, Industrial

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party