LTC4231CUD-1#PBF

Hot Swap Controllers Overview

The LTC4231CUD-1#PBF is a single-channel hot swap voltage controller manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.7 V to 36 V and draws a typical quiescent current of 4 µA. The device is housed in a 12-lead QFN package (QFN-12) designed for surface mount technology. It supports an adjustable current limit feature and functions reliably across an operating temperature range from 0°C to +70°C.

Hot Swap Controllers Feature Summary

• Provides controlled insertion of cards into live backplanes without causing system shutdowns or voltage droops.
• Features adjustable current limiting to protect against short circuits and overcurrent conditions during power-up.
• Includes thermal protection circuitry that reduces current limits based on junction temperature to prevent device damage.

Hot Swap Controllers Applications

• Hot-swappable peripheral cards in industrial control systems
• Server and storage backplane power distribution modules
• Telecommunications equipment requiring safe module replacement under load

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS status before ordering. Confirm the CUD-1 designation matches the required QFN-12 package and commercial temperature grade. Check current availability as stock levels may be limited due to lifecycle status.

Hot Swap Controllers Selection Notes

Select this component when a single-channel solution with low quiescent current is required for positive voltage hot swap applications. Ensure the maximum input voltage of 36 V aligns with the system bus voltage. Consider the QFN-12 footprint constraints during PCB layout compared to larger packages.

Hot Swap Controllers Part Context

This part belongs to the LTC4231 series of hot swap controllers, which are designed for managing power insertion in high-reliability systems. The series offers various channel counts and package options to suit different density and performance requirements in power management architectures.

Hot Swap Controllers Replacement Considerations

Direct substitutes include other parts from the LTC4231 family such as the LTC4231IUD-1#PBF or LTC4231CMS-1#PBF, depending on the required temperature grade and package type. Verify pinout compatibility and electrical specifications before swapping.