Description

The 71M6521DE-IGT is an electronic component model categorized as an Energy Metering device. It is part of Maxim Integrated's 4th-generation polyphase-metering 71M654x systems-on-chips (SoCs) that allow the use of nonisolating sensors like resistive shunts without the need for expensive and nonlinear isolation transformers or CTs. Isolation is achieved through low-cost pulse transformers that establish a bidirectional digital communication link between the 71M654x and the isolated sensor ICs.

Specifications and features

- 0.1% Accuracy Over 2000:1 Current Range
- Exceeds IEC 62053/ANSI C12.20 Standards
- Compatible with Shunt Resistors as Low as 50µΩ
- On-Chip Temperature Sensor Enables Localized Digital Temperature Compensation by the 71M654x
- 22-Bit ADC
- Powered from the 71M654x Using Pulses Sent Through the Transformer
- 3.3mW Typical Consumption
- On-Chip Power Monitoring
- Industrial Temperature Range
- 8-Pin Lead(Pb)-Free SO Package

Application Scenarios

The 71M6521DE-IGT can be used in various energy metering applications. It provides accurate measurement and monitoring of current ranges, making it suitable for energy consumption monitoring and billing systems used in residential, commercial, and industrial settings. Its compatibility with low-value shunt resistors allows for precise measurement even with small current values.

Comparison

- Enables the use of nonisolating sensors without expensive isolation transformers or CTs
- High accuracy over a wide current range
- Complies with international energy metering standards
- On-chip temperature sensor for localized digital temperature compensation
- Low power consumption

- Requires the use of the 71M654x systems-on-chips (SoCs) for full functionality
- Limited to 8-pin Lead(Pb)-Free SO package