ADM1172-2AUJZ-RL7

Overview

The ADM1172-2AUJZ-RL7 is a hot swap voltage controller designed for safe insertion and removal of printed circuit boards into live backplanes. It operates within an input voltage range of 2.7 V to 16.5 V and features adjustable current limiting. The device includes power-fail detection with auto-retry capabilities and consumes 800 uA of quiescent current. It is housed in a TSOT-8 package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Enables safe hot swapping of PCBs into active backplane systems
• Integrates power-fail comparator with automatic retry functionality
• Provides adjustable current limiting for controlled power-up sequences

Applications

• Server and storage system backplane protection
• Telecommunications equipment hot-swap modules
• Industrial control board insertion safety

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging configuration. Confirm RoHS compliance status through official documentation. Ensure the TSOT-8 footprint matches your PCB layout requirements. Validate that the 16.5 V maximum rating aligns with your system bus voltage.

Selection Notes

Select this component when dual-channel or single-channel hot-swap protection is required with integrated power-fail monitoring. Compare against the ADM1177 series if latched-off behavior is preferred over auto-retry. Ensure the TSOT-8 package size fits your spatial constraints compared to larger SOIC options.

Part Context

This part belongs to the ADM1172 family of hot swap controllers from Analog Devices. It shares core architecture with variants like the ADM1172-1AUJZ-RL7 but may differ in channel count or specific pinout configurations. The family focuses on protecting downstream circuits during board insertion events.

Replacement Considerations

ADM1172-1AUJZ-RL7 is a related variant within the same product family.