MAX34427EWC+T

Overview

The MAX34427EWC+T is a dual-channel, high dynamic range power accumulator designed for system power monitoring. It features an I²C/SMBus interface and measures current via a unidirectional high-side sensor with a 5μV to 100mV sense voltage range and a 0.5V to 24V common-mode range. The device utilizes a 14-bit ADC for voltage and a 16-bit resolution for current, generating a 30-bit power value that accumulates in per-channel 56-bit registers. It supports programmable sampling rates up to 4096 samples per second and includes autonomous operation capabilities.

Feature Summary

• Autonomous accumulation of current and voltage data into 56-bit registers without processor intervention
• Dual-channel measurement capability with wide dynamic range for accurate low-power detection
• I²C/SMBus serial interface with bus timeout and configurable target addressing
• Low power consumption modes including slow accumulation and dedicated power-down states

Applications

• Servers
• Tablets
• Ultra Notebooks
• Workstations
• VR/AR Headsets

Procurement Notes

Verify the specific package variant (WLP or TDFN) required for your design, as the base part number covers multiple packages. Confirm the SMBus target address configuration by checking the resistor value connected to the ADDR pin during production. Ensure supply voltages remain within the specified VDD and VIO ranges to maintain operational integrity.

Selection Notes

Select this component when precise energy monitoring across two independent channels is necessary. It is suitable for applications requiring code optimization to minimize power consumption through autonomous data collection. Consider the available package options based on PCB space constraints and thermal requirements.

Part Context

This device belongs to the Maxim Integrated power monitor family, specifically engineered for high-precision energy tracking. It integrates analog sensing and digital accumulation logic to offload processing tasks from the main host controller, facilitating efficient power management strategies in complex electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.