LTC4253CGN#PBF

Hot Swap Controllers Overview

The LTC4253CGN#PBF is a negative voltage hot swap controller designed for -48V systems. It manages power insertion into backplanes while preventing inrush currents and overvoltage conditions. The device operates within a supply voltage range of -10V to -60V and supports an operating temperature range of 0°C to +70°C. Packaged in a 16-lead SSOP, it integrates programmable features including circuit breaker timing, current limit thresholds, fault timeout protection, overvoltage protection (OVP), and undervoltage lockout (UVLO).

Hot Swap Controllers Feature Summary

• Integrated latched fault protection mechanism that requires manual reset after fault clearance.
• Programmable circuit breaker and current limit settings for precise load management.
• Built-in overvoltage protection and undervoltage lockout for system stability.

Hot Swap Controllers Applications

• -48V telecommunications equipment
• Industrial control systems
• Backplane power distribution

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'CGN' against official Analog Devices documentation to confirm package type and temperature grade. Confirm RoHS compliance status via the manufacturer datasheet. Check current product status as legacy or obsolete variants may require alternative sourcing strategies.

Hot Swap Controllers Selection Notes

Select this component for applications requiring robust negative voltage hot swap control without internal switches. Ensure the external MOSFET selection matches the current limit programming requirements. Verify that the 16-SSOP package fits the PCB layout constraints and thermal design specifications.

Hot Swap Controllers Part Context

This part belongs to the LTC4253 series of hot swap controllers from Analog Devices. It is distinct from integrated switch models by requiring an external N-channel MOSFET. The CGN designation indicates a commercial temperature grade and SSOP packaging, differentiating it from industrial or wider package options.

Hot Swap Controllers Replacement Considerations

Consult official substitution guides for direct replacements. Consider the LTC4253ACGN#PBF for extended temperature ranges if required. Verify pin compatibility before substituting with other hot swap controllers.

Hot Swap Controllers FAQ

Does the LTC4253CGN#PBF include an internal power switch?

No, this controller requires an external N-channel MOSFET to handle the load current.

What is the function of the latched fault feature?

It holds the output off after a fault event until the user manually resets the device, preventing repeated cycling during persistent faults.