ADM1175-2ARMZ-R7

Overview

The ADM1175-2ARMZ-R7 is a hot swap controller and digital power monitor from Analog Devices. It integrates a precision current sense amplifier and a 12-bit ADC for real-time voltage and current readback via an I2C interface. The device supports supply voltages from 3.15 V to 16.5 V and utilizes a charge-pumped gate drive for external N-channel FETs. It features adjustable analog current limiting with circuit breaker protection, programmable timing, and configurable ON/OFF pin logic. Packaged in a 10-lead MSOP.

Feature Summary

• Integrates a 12-bit ADC for precise digital monitoring of current and voltage parameters
• Provides adjustable analog current limit with integrated circuit breaker functionality
• Supports safe board insertion and removal through controlled ramp-up timing

Applications

• Central office equipment
• Telecommunications systems
• Data communications infrastructure
• PCs and servers

Procurement Notes

Verify the specific suffix '2' against official documentation to confirm the exact ON/OFF pin configuration variant. Confirm availability status as distribution channels may indicate limited stock or special order requirements. Ensure the I2C address matches system constraints. Validate that the 10-lead MSOP package aligns with the target PCB footprint and thermal design specifications before finalizing procurement.

Selection Notes

Select this component when digital power monitoring via I2C is required alongside hot swap protection. It is suitable for applications needing precise current sensing and adjustable fault response times. Consider the operating voltage range of 3.15 V to 16.5 V and the requirement for an external N-channel FET. Evaluate the need for the specific pin logic configuration associated with the '-2' suffix compared to other variants in the series.

Part Context

This part belongs to the ADM1175 family of hot swap controllers. Unlike basic controllers, it includes on-chip digitization capabilities. The '-2' suffix typically denotes a specific pinout or logic configuration variant within the broader ADM1175 product line, distinguishing it from other versions like the ADM1175-4 which may have different control pin arrangements.

Replacement Considerations

ADM1175-4ARMZ-R7 is a documented alternative within the same family offering similar core functionalities but potentially differing pin configurations.