Professional IC Distribution & Technical Solutions

The MAX5980GTJ+T is a Power over Ethernet (PoE) power sourcing equipment (PSE) controller manufactured by Maxim Integrated (now part of Analog Devices).

Specifications:

• Manufacturer: Maxim Integrated
• Part Number: MAX5980GTJ+T
• Package: 32-TQFN (5x5mm)
• Operating Voltage: 44V to 57V
• Compliance: IEEE 802.3af/at compliant
• Port Count: Single-port PSE controller
• Detection & Classification: Supports 4-point detection and 2-event classification
• Power Management: Programmable current limit (up to 720mA)
• Power Dissipation: Integrated 0.5Ω power MOSFET
• Interface: I²C-compatible for configuration and monitoring
• Operating Temperature Range: -40°C to +85°C

Descriptions:

The MAX5980GTJ+T is a fully integrated PSE controller designed for IEEE 802.3af/at compliant PoE applications. It provides detection, classification, and power management for a single Ethernet port. The device includes a low-resistance power MOSFET to minimize heat dissipation and supports I²C communication for configuration and monitoring.

Features:

• IEEE 802.3af/at compliant
• Integrated 0.5Ω power MOSFET
• Programmable current limit (up to 720mA)
• 4-point detection for high accuracy
• 2-event classification
• I²C interface for configuration
• Thermal overload protection
• Supports 44V to 57V input range
• Available in a compact 32-TQFN package

This information is based on the manufacturer's datasheet and technical documentation.