LT4294IDD#PBF

Overview

The LT4294IDD#PBF is a hot swap voltage controller designed for IEEE 802.3bt Powered Device (PD) applications. It operates within an input voltage range of 8 V to 60 V and features adjustable current limiting. The device supports single-channel control with a typical operating supply current of 2 mA. It functions reliably across a temperature range of -40°C to +85°C and is housed in a compact 10-lead DFN surface-mount package.

Feature Summary

• Supports IEEE 802.3bt PoE++ Powered Device interface protocols
• Provides adjustable current limiting for load protection
• Enables safe insertion and removal under power conditions

Applications

• IEEE 802.3bt Powered Device integration
• Hot swap circuitry for network infrastructure equipment
• Power management for high-power PoE endpoints

Procurement Notes

Verify the specific ordering suffix #PBF to confirm lead-free compliance and tube packaging configuration. Ensure the component matches the required DFN-10 footprint and thermal characteristics for your printed circuit board design. Confirm availability status as distribution channels may indicate limited stock or regional sales restrictions.

Selection Notes

Select this controller when designing systems requiring full IEEE 802.3bt PD compatibility. The adjustable current limit allows customization for varying load requirements. Consider the 60 V maximum rating and 10-lead DFN package constraints during layout planning to ensure adequate thermal dissipation and electrical isolation.

Part Context

This component belongs to the LT4294 series of hot swap controllers from Analog Devices. It is categorized under Power Distribution ICs and specifically addresses the needs of modern high-power Ethernet applications. The part serves as a critical interface between the power sourcing equipment and the powered device load.

Replacement Considerations

LT4294IDD#TRPBF offers identical functionality but utilizes tape-and-reel packaging instead of tubes.