LTC4260CUH#TRPBF

Hot Swap Controllers Overview

The LTC4260CUH#TRPBF is a hot swap controller designed for safe insertion and removal of circuit boards into live backplanes. It operates with an external N-channel pass transistor, regulating the power supply voltage ramp rate to prevent inrush current issues. The device supports a supply voltage range from 8.5 V to 80 V and functions within an operating temperature range of 0°C to +70°C. It draws a typical operating supply current of 2 mA. The component is housed in a 32-lead QFN package measuring 5 mm x 5 mm x 0.75 mm with an exposed pad, suitable for surface mount applications.

Hot Swap Controllers Feature Summary

• Enables safe board insertion and removal by controlling the power supply voltage ramp rate via an external N-channel pass transistor.
• Provides comprehensive protection features including programmable current limit, fault timeout, overvoltage protection, and undervoltage lockout.
• Supports auto-retry functionality and latched fault modes for robust system management during abnormal conditions.

Hot Swap Controllers Applications

• Telecommunications equipment requiring safe module replacement
• Industrial control systems with live backplane architectures
• Computing infrastructure needing controlled power-up sequences

Hot Swap Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 32-QFN package dimensions match your PCB footprint requirements. Ensure the external N-channel MOSFET selected is rated for the maximum 80 V supply voltage and expected load currents. Check RoHS compliance status if required by your manufacturing standards.

Hot Swap Controllers Selection Notes

Select this controller when designing systems that require precise control over power-up slew rates to minimize stress on components. It is suitable for applications involving high-voltage backplanes up to 80 V. Consider the external pass transistor selection carefully, as it determines the current handling capability. The I2C-compatible interface allows for monitoring and configuration, which is beneficial for complex system management.

Hot Swap Controllers Part Context

This component belongs to the LTC4260 series of hot swap controllers manufactured by Analog Devices Inc. It is part of a family of power management ICs designed for protecting circuits during insertion events. The CUH variant specifically denotes the commercial temperature range and the 32-lead QFN package type, distinguishing it from other package options like the CGN SSOP.

Hot Swap Controllers Replacement Considerations

Direct substitutes may include other LTC4260 variants with different packages, such as LTC4260CGN#PBF or LTC4260CUH#TRPBF (if sourcing from different distributors). Verify pin compatibility and electrical specifications before substitution. No other direct cross-model replacements are confirmed in public documentation.