LTC4245CUHF#PBF

Hot Swap Controllers Overview

The LTC4245CUHF#PBF is a four-channel hot swap controller designed for managing power insertion in high-density systems. It supports multiple supply voltages including 0V, 10V, 20V, and -10.2V. The device integrates an N-channel switch driver and provides comprehensive monitoring capabilities via an I2C-compatible interface. It features under-voltage lockout (UVLO) to ensure stable operation during power transitions. Packaged in a 38-pin QFN with an exposed pad, it operates within a specified temperature range suitable for industrial applications.

Hot Swap Controllers Feature Summary

• Integrates four independent channels for simultaneous hot swap control
• Provides I2C-compatible digital monitoring for system management
• Includes under-voltage lockout protection for reliable startup

Hot Swap Controllers Applications

• CompactPCI bus power management
• PCI Express slot power sequencing
• CompactTCA platform power distribution

Hot Swap Controllers Procurement Notes

Verify the specific suffix and package variant against the official Analog Devices datasheet to confirm pin compatibility and thermal performance requirements. Ensure the ordering information matches the exact electrical specifications required for the target application voltage levels. Cross-reference the component marking code with manufacturer documentation to authenticate the source and prevent counterfeit parts. Confirm that the exposed pad thermal design meets the system's heat dissipation needs.

Hot Swap Controllers Selection Notes

Select this component when multi-rail hot swap protection is required for backplane architectures. It is suitable for designs needing centralized monitoring through standard communication protocols. Consider the 38-pin QFN footprint for space-constrained layouts. Evaluate the supported voltage ranges against the system's power rails to ensure adequate headroom and protection thresholds are met without external level shifting.

Hot Swap Controllers Part Context

This part belongs to the LTC4245 family of multiple supply hot swap controllers from Analog Devices. It is engineered for robust power insertion management in server and communication infrastructure. The device simplifies board-level power sequencing by integrating control logic and monitoring interfaces into a single compact package, reducing bill-of-materials complexity compared to discrete solutions.

Hot Swap Controllers Replacement Considerations

Consult the Analog Devices product selector guide for direct replacements or pin-compatible alternatives within the same hot swap controller family. Verify that any substitute component maintains identical channel count and I2C interface compatibility. Ensure thermal characteristics and package dimensions match the existing PCB layout constraints before substitution.