LT4256-3CGN#TRPBF

Hot Swap Controllers Overview

The LT4256-3CGN#TRPBF is a hot swap controller designed for demanding power distribution control in 12V, 24V, and 48V applications. It provides board insertion protection, high-side power switching, and electronic circuit breaker functions. The device features overvoltage shutdown, undervoltage lockout, foldback inrush current limiting, and an overcurrent circuit breaker with programmable cutout time. It includes a programmable output voltage ramp rate and selectable auto-retry or latch-off on overcurrent faults. The component also offers power good monitoring and open MOSFET detection capabilities.

Hot Swap Controllers Feature Summary

• Provides comprehensive hot swap protection including overvoltage shutdown and undervoltage lockout for safe board insertion.
• Features programmable inrush current limiting and overcurrent circuit breaker with adjustable cutout time.
• Supports selectable auto-retry or latch-off modes to manage overcurrent fault recovery strategies.

Hot Swap Controllers Applications

• Hot board insertion protection in server and storage systems
• High side power switching in industrial control units
• Electronic circuit breaker implementation in telecom infrastructure

Hot Swap Controllers Procurement Notes

Verify the specific suffix CGN against official Analog Devices documentation to confirm package type and temperature range. Confirm availability status as supply may be limited. Ensure compatibility with external MOSFET selection for thermal management in target voltage applications.

Hot Swap Controllers Selection Notes

Select this controller for applications requiring precise control of inrush current and robust fault protection in 12V, 24V, or 48V systems. Consider the need for programmable ramp rates and fault handling modes when designing the power distribution network. Evaluate thermal requirements for the external pass FET based on the intended load current.

Hot Swap Controllers Part Context

This component belongs to the LT4256 family of hot swap controllers from Analog Devices. These devices are engineered for reliable power distribution management in environments requiring frequent board maintenance or replacement. The family supports various voltage levels and current capacities through configurable external components.

Hot Swap Controllers FAQ

What fault handling options does the LT4256-3 support?

The device allows selection between auto-retry and latch-off modes upon detecting an overcurrent fault.

Does the LT4256-3 include open MOSFET detection?

Yes, the controller features open MOSFET detection to monitor the integrity of the external pass transistor.