LTC1646CGN#TRPBF

Hot Swap Controllers Overview

The LTC1646CGN#TRPBF is a compact dual hot-swap controller designed for PCI and CompactPCI applications. It manages two independent channels with an input voltage range of 3V to 36V. The device supports output voltages of 3.3V or 5V. Key electrical parameters include a maximum continuous current limit of 20A per channel and a peak current limit of 40A. It features adjustable soft-start times ranging from 1ms to 100ms. The controller operates within a temperature range of -40°C to +85°C and utilizes a 28-lead SSOP package.

Hot Swap Controllers Feature Summary

• Integrated dual-channel control for simultaneous management of two hot-swap loads
• Programmable current limiting with fast response protection against overcurrent conditions
• Adjustable soft-start functionality to minimize inrush current during power-up
• Built-in fault monitoring including undervoltage lockout and thermal shutdown

Hot Swap Controllers Applications

• CompactPCI backplane power distribution systems
• PCI bus hot-plug insertion and removal interfaces
• Industrial server chassis power management modules
• Telecommunications equipment requiring redundant power inputs

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'TRPBF' indicates tape and reel packaging with lead-free composition. Confirm the 'C' grade meets industrial temperature specifications. Ensure compatibility with existing board layout constraints for the SSOP-28 footprint. Cross-reference manufacturer documentation for any recent product change notifications affecting pinout or electrical characteristics.

Hot Swap Controllers Selection Notes

Select this component when designing systems requiring independent control of two high-current loads on standard bus architectures. It is suitable for applications needing precise current limiting and controlled power ramp-up. Consider the package size and thermal performance relative to available board space. Evaluate the need for external components such as sense resistors and gate drive transistors based on system voltage levels.

Hot Swap Controllers Part Context

This part belongs to the LTC1646 family of hot-swap controllers manufactured by Analog Devices. It is specifically engineered for multi-slot backplane applications where safe insertion and removal are critical. The device simplifies design by integrating control logic, protection circuits, and timing functions into a single compact solution compared to discrete implementations.

Hot Swap Controllers Replacement Considerations

Public confirmed substitute part numbers: None identified.