LTC4242IUHF#PBF

Hot Swap Controllers Overview

The LTC4242IUHF#PBF is a six-channel hot swap controller designed for PCI Express applications. It operates within a supply voltage range of 2.7V to 14.4V and draws 1.6mA of supply current. The device integrates internal switches and features programmable characteristics including automatic retry, current limiting, fault lockout, and slew rate control. Additional protection mechanisms include fault timeout, thermal limitation, and under-voltage lockout (UVLO). It is housed in a 38-WFQFN package with an exposed pad, measuring 5x7mm, and supports surface mount installation across an operating temperature range of -40°C to 85°C.

Hot Swap Controllers Feature Summary

• Integrates six channels with internal switches for compact hot swap management
• Provides programmable current limiting, slew rate control, and automatic retry capabilities
• Includes comprehensive protection features such as fault timeout, thermal limiting, and UVLO

Hot Swap Controllers Applications

• PCI Express card edge connectors
• Hot swap backplane systems
• Peripheral expansion cards requiring safe insertion and removal

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS3 status before procurement. Confirm the 38-QFN package dimensions match the PCB footprint design. Ensure the supply voltage requirements align with the system's rail specifications. Check for any recent product change notifications that may affect pinout or electrical characteristics.

Hot Swap Controllers Selection Notes

Select this component when managing multiple low-voltage rails on a single board edge. The integrated internal switches reduce external component count compared to discrete solutions. Consider the 38-pin QFN package for space-constrained designs. Verify that the programmable parameters meet the specific current and timing requirements of the target application.

Hot Swap Controllers Part Context

This part belongs to the LTC4242 family of hot swap controllers from Analog Devices. It is specifically optimized for PCI Express interfaces, offering multi-channel control in a small form factor. The device complements other power management ICs by handling the mechanical stress of card insertion and removal safely.

Hot Swap Controllers Replacement Considerations

Consult official documentation for direct substitutes. Cross-reference pinouts and electrical specifications carefully when considering alternative manufacturers.