LTC4261IUFD#PBF

Hot Swap Controllers Overview

The LTC4261IUFD#PBF is a negative voltage hot swap controller manufactured by Analog Devices Inc. It operates within a supply voltage range of -30 V to -60 V and features an integrated analog-to-digital converter (ADC) for precise monitoring. The device supports I2C communication for configuration and data retrieval. It is housed in a 24-lead QFN package rated for industrial temperatures from -40°C to +85°C. Key electrical parameters include a quiescent current of 2 mA, adjustable current limit, and fault timeout capabilities.

Hot Swap Controllers Feature Summary

• Integrates an ADC for real-time monitoring of voltage and current without external components
• Supports I2C interface for programmable control and status reporting
• Provides comprehensive protection against overvoltage, undervoltage, and short circuits

Hot Swap Controllers Applications

• Telecommunications equipment requiring -48V power distribution
• Industrial control systems with hot-swappable backplanes
• Data center infrastructure managing negative voltage rails

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the IUFD suffix matches the required industrial temperature grade and QFN-24 package variant. Cross-reference the manufacturer datasheet to ensure the part number aligns with the intended negative voltage application requirements.

Hot Swap Controllers Selection Notes

Select this component when designing systems that require precise current limiting and monitoring on negative voltage rails. The integrated ADC eliminates the need for external sensing amplifiers. Ensure the system architecture supports I2C communication for accessing the device's diagnostic registers and configuration settings.

Hot Swap Controllers Part Context

This part belongs to the LTC4261 family of hot swap controllers designed for robust power management. It serves as a critical interface between the power source and the load, ensuring safe insertion and removal of circuit boards while protecting against electrical faults.

Hot Swap Controllers FAQ

Does the LTC4261IUFD#PBF include an internal switch?

No, the LTC4261 is a controller that requires an external N-channel MOSFET to handle the load current.

What is the operating supply voltage range?

The device operates with a negative supply voltage ranging from -30 V to -60 V.