LTC1643AHIGN#PBF

Hot Swap Controllers Overview

The LTC1643AHIGN#PBF is a hot swap voltage controller designed for PCI-bus applications. It manages power insertion into backplane systems, providing controlled ramp-up of output voltage and programmable current limiting to prevent bus collapse during fault conditions. The device operates within a supply voltage range of 2.7 V to 16.5 V and draws a typical operating supply current of 3.5 mA. It is housed in a 16-lead SSOP package suitable for surface mount installation.

Hot Swap Controllers Feature Summary

• Integrated control for safe power insertion into high-density backplane architectures
• Programmable current limit threshold to protect downstream circuitry from overcurrent events
• Built-in soft-start mechanism ensures gradual voltage ramp-up to minimize inrush current

Hot Swap Controllers Applications

• PCI-bus hot swap controller implementations
• Backplane power management systems requiring controlled power insertion
• High-density server or communication equipment power distribution units

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'IGN' against the manufacturer's official datasheet to confirm temperature grade and packaging specifications. Ensure compatibility with the target PCB footprint for the 16-SSOP package. Confirm that the 16.5 V maximum supply rating aligns with the system's input voltage rails before integration.

Hot Swap Controllers Selection Notes

Select this component when designing systems requiring precise control over power insertion sequences for PCI-bus standards. Consider the 3.5 mA quiescent current for low-power standby requirements. Evaluate the thermal performance of the SSOP package relative to the expected ambient operating temperatures within the enclosure.

Hot Swap Controllers Part Context

This part belongs to Analog Devices' family of hot swap controllers, which are specialized PMICs used to manage the risks associated with inserting or removing live cards from powered systems. These devices are critical for maintaining system availability and protecting expensive hardware components from electrical stress during maintenance or expansion.

Hot Swap Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence with other hot swap controllers only if they support identical PCI-bus timing and voltage specifications.