LTC4226CUD-2#TRPBF

Hot Swap Controllers Overview

The LTC4226CUD-2#TRPBF is a dual-channel hot swap controller designed for positive high-voltage applications. It operates within a supply voltage range of 4.5V to 44V and utilizes external N-channel MOSFETs. The device features programmable current limiting with a typical circuit breaker threshold of 50mV. It supports selectable fault management modes, including auto-retry after a 0.5-second delay or latched-off behavior. Packaged in a 16-pin QFN, it enables safe board insertion into live backplanes.

Hot Swap Controllers Feature Summary

• Dual-channel architecture allows independent control of two power rails for simultaneous load management.
• Wide operating voltage range accommodates various system bus voltages from 4.5V up to 44V.
• Programmable current limit and dual-rate timer accommodate load surges while limiting peak fault currents.
• Selectable fault management provides either automatic retry or latched-off protection following overcurrent events.

Hot Swap Controllers Applications

• Safe insertion of boards into live backplanes
• Dual-rail power distribution systems
• High-voltage hot swap controller implementations

Hot Swap Controllers Procurement Notes

Verify the specific suffix TRPBF confirms tape-and-reel packaging when ordering. Confirm the CUD package designation matches the required QFN footprint for PCB layout. Ensure the -2 variant is selected for dual-channel functionality rather than single-channel alternatives. Validate that the commercial temperature grade meets the operational environment requirements.

Hot Swap Controllers Selection Notes

Select this component when dual independent channel control is required for high-voltage hot swap applications. The wide input voltage range suits systems operating between 4.5V and 44V. Use external N-channel FETs to handle specific current ratings beyond the internal sense capabilities. Consider the auto-retry feature if transient faults are expected in the target application environment.

Hot Swap Controllers Part Context

This part belongs to the LTC4226 family of hot swap controllers manufactured by Analog Devices. It serves as a dual-channel solution compared to single-channel variants like the LTC4226CMS-1. The device integrates precise current monitoring and timing controls essential for protecting sensitive electronics during live insertion events.

Hot Swap Controllers Replacement Considerations

LTC4226CUD-2#PBF is available in tube packaging instead of tape and reel. LTC4226CMS-2#TRPBF offers the same dual-channel functionality in an MSOP package. Verify pinout compatibility before substituting different package types.