LTC4261IUFD-2#TRPBF

Hot Swap Controllers Overview

The LTC4261IUFD-2#TRPBF is a negative voltage hot swap controller manufactured by Analog Devices Inc. It operates within a supply voltage range of 3V to -57V and features an integrated analog-to-digital converter for monitoring input voltage, current, and power. The device supports I2C communication for configuration and data retrieval. It provides adjustable current limiting with foldback protection and includes programmable fault timeouts. The component is housed in a 28-lead QFN package and is designed for robust power distribution management.

Hot Swap Controllers Feature Summary

• Integrated ADC enables precise real-time monitoring of input voltage, load current, and calculated power dissipation without external sensing components.
• I2C interface allows comprehensive digital control over device parameters including current limit thresholds, fault timeout durations, and retry configurations.
• Built-in foldback current limiting protects the system during short circuits by reducing current flow as voltage drops below regulation levels.

Hot Swap Controllers Applications

• Telecommunications equipment requiring safe insertion and removal of live circuit boards
• Industrial control systems managing high-voltage DC power distribution
• Automotive electronics utilizing negative ground architectures
• Data center infrastructure managing backplane power delivery

Hot Swap Controllers Procurement Notes

Verify the specific suffix and package type against official manufacturer documentation to ensure compatibility with your design requirements. Confirm that the negative voltage operation aligns with your system's ground reference. Check for any recent product change notifications or lifecycle status updates directly from Analog Devices before finalizing procurement plans.

Hot Swap Controllers Selection Notes

Select this component when negative voltage hot swap protection is required alongside detailed power monitoring capabilities. Ensure the operating voltage range covers your system's maximum negative rail. Consider the I2C addressability if multiple controllers are present on the same bus. Verify thermal performance requirements match the QFN package capabilities for your specific application environment.

Hot Swap Controllers Part Context

This part belongs to the LTC4261 family of hot swap controllers designed for negative voltage applications. It complements positive voltage counterparts like the LTC4260 by addressing specific architectural needs in telecommunications and industrial sectors. The series emphasizes precision monitoring and digital configurability through its integrated ADC and I2C interface.

Hot Swap Controllers Replacement Considerations

Direct replacements may include other negative voltage hot swap controllers from Analog Devices such as the LTC4260 variants if polarity differences are addressed. Verify pinout compatibility and electrical specifications carefully. No identical direct substitutes are publicly confirmed; functional equivalents require thorough validation of monitoring accuracy and protection thresholds.

Hot Swap Controllers FAQ

["What is the primary function of the integrated ADC in this controller?","The integrated ADC monitors input voltage, current, and power, providing digital data via I2C for system management and protection."]

["How does the foldback current limiting feature operate?","Foldback limiting reduces the current threshold as the output voltage drops during a fault condition, minimizing stress on the source and load."]

["What communication protocol is used for configuration?","The device uses a standard I2C compatible interface for all configuration registers and data retrieval."]