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MAX471 3A Range Current Sensor Module

Save 31%
Original price ₹ 455.00
Current price ₹ 315.00
SKU ELC1031
Soldered

The MAX471/MAX472 are complete, bidirectional, highside current-sense amplifiers for portable PCs, telephones, and other systems where battery/DC power-line monitoring is critical. High-side power-line monitoring is especially useful in battery-powered systems, since it does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries.

The MAX471 has an internal 35mΩ current-sense resistor and measures battery currents up to ±3A. For applications requiring higher current or increased flexibility, the MAX472 functions with external sense and gain-setting resistors. Both devices have a current output that can be converted to a ground-referred voltage with a single resistor, allowing a wide range of battery voltages and currents.

An open-collector SIGN output indicates current-flow direction, so the user can monitor whether a battery is being charged or discharged. Both devices operate from 3V to 36V, draw less than 100µA over temperature, and include a 18µA max shutdown mode.

  • Complete High-Side Current Sensing
  • Precision Internal Sense Resistor (MAX471)
  • 2% Accuracy Over Temperature
  • Monitors Both Charge and Discharge
  • 3A Sense Capability with Internal Sense Resistor (MAX471)
  • Higher Current-Sense Capability with External Sense Resistor (MAX472)
  • 100µA Max Supply Current
  • 18µA Max Shutdown Mode
  • 3V to 36V Supply Operation
  • 8-Pin DIP/SO Packages
Specifications
ThinkRobotics | MAX471
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