LTC9101AUF-2A#TRPBF

Overview

The LTC9101AUF-2A#TRPBF is a Power Sourcing Equipment (PSE) controller designed for IEEE 802.3bt PoE applications. It supports up to 48 ports and operates with a supply voltage range of 51V to 57V. The device features a low-power logic interface supplied by 3V to 3.6V, drawing approximately 40mA. It is housed in a 24-lead QFN package measuring 4mm x 4mm x 0.75mm with an exposed pad. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports IEEE 802.3bt Type 4 power delivery standards
• Integrated digital control architecture for multi-port systems
• Compatible with standard PoE and PoE+ protocols

Applications

• IEEE 802.3bt compliant Power Sourcing Equipment
• High-density PoE switch designs
• Network infrastructure power distribution

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the A-grade variant matches thermal and electrical requirements. Ensure compatibility with existing 802.3bt system designs before procurement.

Selection Notes

Select this component for high-port-count PoE++ switches requiring integrated PSE management. The 48-channel capability reduces external component count compared to single-port controllers. Verify that the 51V-57V input range aligns with the system's power bus specifications.

Part Context

This part belongs to the LTC9101 chipset family from Analog Devices, specialized for PoE power sourcing equipment. It serves as a central controller for managing multiple powered devices over Ethernet networks, enabling efficient power distribution in modern data center and enterprise networking environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.