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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 28TQFN
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：Controller (PSE)
- Number of Channels：1
- Power - Max：40 W
- Internal Switch(s)：Yes
- Auxiliary Sense：No
- Standards：802.3at (PoE+), 802.3af (PoE)
- Voltage - Supply：32V ~ 60V
- Current - Supply：2.5mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad
- Supplier Device Package：28-TQFN (5x5)
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Overview
The MAX5984AETI+ is a single-port, 40W IEEE 802.3af/at Powered Device (PD) controller with an integrated power MOSFET and sense resistor. It operates on supply voltages between 32V and 60V with a typical supply current of 2.5mA. Designed for surface mount installation, it utilizes a 28-WFQFN package and functions within an operating temperature range of -40°C to +85°C. The device supports Class 5 and Class 7 detection, eliminating the need for external programming.
Feature Summary
- Integrates a power MOSFET and sense resistor to minimize external component count
- Supports IEEE 802.3af/at standards with Class 5 and Class 7 detection capabilities
- Operates without software programming requirements
Applications
- IEEE 802.3af/at powered network devices
- VoIP phones and wireless access points
- Security cameras and surveillance systems
Procurement Notes
Verify the exact suffix 'E' and '+' against the manufacturer's official datasheet to confirm the specific temperature grade and lead-free status. Ensure the 28-WFQFN package matches your PCB footprint design. Cross-reference the part number with Analog Devices documentation to validate electrical specifications before integration into production designs.
Selection Notes
Select this component for applications requiring a compact, single-port PoE solution that adheres to IEEE 802.3af/at standards. The integrated MOSFET reduces board space and simplifies design compared to discrete solutions. Consider the 28-WFQFN package constraints and thermal performance when designing the layout for high-power Class 7 operations.
Part Context
This part belongs to the Maxim Integrated MAX5984 family of Power over Ethernet controllers. It is designed specifically for powering end-node devices in network infrastructure. The series offers various configurations for single and multi-port applications, with this specific model focusing on a single-port, high-efficiency implementation.
Replacement Considerations
Consult Analog Devices documentation for direct pin-compatible or functionally equivalent alternatives within the MAX5984 series or newer generations. Verify compatibility with existing IEEE 802.3af/at compliance requirements before substituting.
