MAX34406HETG+

Current Regulation/Management Overview

The MAX34406HETG+ is a quad high-side bidirectional current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated. It features four precision amplifiers with fixed gains of 25 V/V, 50 V/V, 100 V/V, and 200 V/V. The device supports a common-mode voltage range from 2.0 V to 28 V and includes an input offset voltage of less than ±600 μV. Gain error is specified at less than ±0.6% for the H variant. It provides analog voltage outputs for each channel and integrates overcurrent comparators with a 1.0 V threshold. The component operates within a temperature range of -40°C to +85°C and is housed in a 24-pin TQFN package measuring 4 mm x 4 mm.

Current Regulation/Management Feature Summary

• Quad-channel architecture providing independent high-side current monitoring capabilities
• Fixed gain options available for precise signal conditioning across various current ranges
• Integrated overcurrent protection with logic OR output for system shutdown control
• Wide common-mode voltage range supporting diverse power supply architectures

Current Regulation/Management Applications

• Base station infrastructure monitoring
• Industrial control systems
• Network switches and routers
• Server power management
• Smart grid systems

Current Regulation/Management Procurement Notes

Verify the specific suffix 'HETG+' against official Analog Devices documentation to confirm the gain error specification and thermal characteristics associated with the H grade. Ensure compatibility with the 24-TQFN footprint during PCB layout. Confirm RoHS compliance status through the manufacturer's certification records prior to integration into final assemblies.

Current Regulation/Management Selection Notes

Select this component when multi-channel high-side current sensing is required in space-constrained designs. The fixed gain configurations simplify external resistor networks compared to programmable alternatives. Consider the 28 V common-mode limit and the specific gain error tolerance of the H variant relative to other grades like F or T when designing for precision applications.

Current Regulation/Management Part Context

This part belongs to the MAX34406 series of current sense amplifiers designed for robust industrial and telecommunications environments. The series offers integrated solutions for monitoring multiple power rails simultaneously. The HETG+ designation indicates a specific performance grade and packaging configuration within this family, tailored for surface-mount assembly on high-density circuit boards.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers include MAX34406FETG+, MAX34406TETG+, and MAX34406HETG+T. Verify pinout compatibility and electrical parameter alignment before substitution.