MAX471 DC Voltage and Current Sensor Module

Features:

• Voltage and Current Monitoring: Measures DC current and supports voltage monitoring on compatible module versions.

• High-Side Current Sensing: Uses the MAX471 current-sense amplifier to measure current on the positive supply line without interrupting the circuit's ground path.

• Bidirectional Current Detection: The MAX471 IC can detect current flowing in either direction, making it useful for monitoring battery charging and discharging.

• Analog Signal Output: Provides an output signal that can be read by a microcontroller's analog input, depending on the breakout-board circuit.

• Low Voltage Drop: Uses an integrated current-sense resistor to minimize the voltage drop across the sensing element.

• Microcontroller Compatibility: Suitable for Arduino and other compatible control systems with appropriate signal-level matching.

• Compact Module Design: Fits into battery-monitoring systems, embedded electronics, and power-measurement projects.

• Real-Time Monitoring: Supports continuous current monitoring for testing, measurement, and energy-management applications.

Specifications:

• Sensor IC: MAX471

• Product Type: DC voltage and current sensor module

• Current Measurement Range: Up to ±3A for the MAX471 IC under specified operating conditions

• Voltage Monitoring Range: Depends on the module's voltage-divider circuit; common versions support up to 25V with a 5V ADC

• IC Operating Voltage Range: 3–36V

• Current-Sense Resistor: Approximately 35mΩ typical for the MAX471 IC

• Current-Sense Output: Current output that can be converted into a voltage using a suitable resistor; common modules provide a scaled analog voltage

• Current Direction Detection: Supported by the IC through its SIGN output

• Interface: Analog output and ground; additional voltage-sensing pins depend on the board design

• Controller Compatibility: Arduino and compatible microcontrollers

• Mounting Type: PCB module with through-hole header pins or terminals, depending on version

• Dimensions: Approximately 25 × 17mm for some common modules

• Package Contents: 1 × MAX471 voltage and current sensor module

Note: The MAX471 IC's 3–36V operating range is not the same as the module's voltage-measurement range. Confirm the board schematic, output scaling, and pin labels before connecting it to a microcontroller.

Applications:

• DC power supply monitoring

• Battery charging and discharging measurement

• Current monitoring in embedded systems

• Arduino-based electrical measurement projects

• Solar-powered system monitoring

• Portable electronics development

• DC load testing

• Power consumption analysis

• Robotics and automation projects

• Educational electronics experiments