LTC4283HUHF#PBF

Hot Swap Controllers Overview

The LTC4283HUHF#PBF is a hot-swap controller designed for dual-channel power distribution applications. It supports input voltages from 2.9V to 18V and operates within a temperature range of -40°C to +85°C. The device features adjustable current limiting, precise voltage monitoring, and integrated soft-start capabilities. Packaged in a 28-lead QFN (5mm x 5mm) with an exposed pad, it facilitates surface-mount assembly. Key electrical parameters include a maximum supply voltage of 18V, minimum operating voltage of 2.9V, and typical quiescent current of 2.5mA.

Hot Swap Controllers Feature Summary

• Integrated dual-channel hot-swap control with independent channel management
• Adjustable current limit protection to prevent circuit damage during fault conditions
• Precision voltage monitoring with programmable undervoltage lockout thresholds
• Soft-start functionality to manage inrush current during power-up sequences

Hot Swap Controllers Applications

• Hot-swappable backplane systems requiring redundant power supplies
• Industrial I/O modules needing safe insertion and removal
• Distributed power architectures with multiple load points
• Telecommunications equipment requiring continuous operation during maintenance

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the HUHF package variant matches the required thermal and footprint specifications for the target PCB design. Ensure the component status is active before finalizing procurement plans, as availability may vary by region.

Hot Swap Controllers Selection Notes

Select this component when dual-channel hot-swap protection is required within an 18V input limit. Compare against single-channel alternatives if only one protected rail is needed. Consider the thermal performance of the QFN package relative to the expected power dissipation during short-circuit events. Verify that the adjustable current limit range covers the maximum load requirements of the connected circuits.

Hot Swap Controllers Part Context

The LTC4283 belongs to Analog Devices' family of hot-swap controllers, which provide robust protection for electronic systems during live insertion. These devices are critical for maintaining system integrity in environments where components must be replaced without powering down the entire infrastructure. The series emphasizes precision control and reliability for industrial and communication applications.

Hot Swap Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Analog Devices resources or authorized distributors for cross-reference information regarding compatible replacements or pin-compatible upgrades.