LTC4260IUH

Hot Swap Controllers Overview

The LTC4260IUH is a positive high voltage hot swap controller designed for high availability systems requiring zero downtime. It integrates an I2C-compatible monitoring interface with an internal ADC to measure current, voltage, and external pins. The device supports input voltages from 8.5V to 80V with an absolute maximum rating of 100V. It features a fast short-circuit response time of less than 1 microsecond to protect connectors. The component operates within a temperature range of -40°C to 85°C and is housed in a 32-pin QFN package.

Hot Swap Controllers Feature Summary

• Integrates wide input range hot swap control with an 8-bit ADC for real-time power path monitoring
• Provides I2C/SMBus serial communication for host configuration, fault status retrieval, and data logging
• Delivers rapid sub-microsecond current limiting response to safeguard backplane connectors during faults

Hot Swap Controllers Applications

• High-availability computer systems requiring zero downtime operation
• Large capacity storage server backplanes
• Telecommunications infrastructure equipment
• Redundant power supply path integrity checks

Hot Swap Controllers Procurement Notes

Verify the specific suffix (e.g., #PBF or #TR) to confirm packaging type, as the base model number may refer to multiple variants. Ensure the operating temperature grade matches the application requirements, noting that industrial grades typically cover -40°C to 85°C. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement orders.

Hot Swap Controllers Selection Notes

Select this component when designing systems that require precise monitoring of power rails via digital interfaces. It is suitable for applications needing controlled inrush current management during board insertion. Consider the external N-channel pass transistor requirement and ensure the gate drive capabilities align with the selected MOSFET specifications for optimal performance.

Hot Swap Controllers Part Context

This part belongs to the Analog Devices LTC4260 series of hot swap controllers. It is functionally related to evaluation tools such as the DC786A demo board, which is used for testing the LTC4260CGN variant. The series is designed to simplify power management in complex multi-board systems by centralizing protection and monitoring functions.

Hot Swap Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official Analog Devices documentation for potential cross-references or updated revisions within the same product family.