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Monolithic Power Systems (MPS) MCQ1805 Hall-Effect Current Sensors

Monolithic Power Systems (MPS) MCQ1805 Hall-Effect Current Sensors are AEC-Q100 automotive-grade sensors designed for AC or DC current sensing. The MCQ1805 sensors' differential Hall array cancels stray magnetic fields, while a low-resistance primary conductor directs current near the IC. The current generates a magnetic field detected at two points by Hall-effect transducers. The difference in the magnetic field is converted into a voltage proportional to the current, and a spinning current technique ensures a low and stable offset. The MCQ1805 current sensors offer fast Over-Current Detection (OCD) to monitor the system for Over-Current (OC) faults. Typical applications include automotive systems, motor controls, Switch-Mode Power Supply (SMPS), and Over-Current (OC) fault protection.

The MCQ1805 current sensors feature a 3kVRMS minimum isolation voltage, a 580VRMS maximum working voltage, a 120kHz bandwidth, ±2.5% total accuracy, and a 3.3V or 5V single-supply options. These current sensors are available in a small SOIC-8 footprint package, making it ideal for space-constrained applications.

Features

  • 3.3V or 5V single-supply options
  • Immune to external gradient magnetic fields via differential sensing
  • Extreme low-noise density
  • 3kVRMS minimum isolation voltage
  • 580VRMS maximum working voltage
  • ±2.5% total accuracy
  • 5A to 50A bidirectional or unidirectional range
  • 120kHz bandwidth
  • Custom Over-Current Detection (OCD) from 50% to 240% of the Rated Current (IPMAX)
  • Fast OCD with 1µs response time
  • Output Voltage (VOUT) proportional to AC or DC currents
  • Ratiometric output from supply voltage
  • Factory-trimmed for accuracy
  • Available in an SOIC-8 package
  • Available in AEC-Q100 Grade 1

Applications

  • Automotive systems
  • Motor controls
  • Load detection and management
  • Switch-Mode Power Supply (SMPS)
  • Over-Current (OC) fault protection

Typical Application Circuit

Application Circuit Diagram - Monolithic Power Systems (MPS) MCQ1805 Hall-Effect Current Sensors

Functional Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MCQ1805 Hall-Effect Current Sensors

Dimensions

Mechanical Drawing - Monolithic Power Systems (MPS) MCQ1805 Hall-Effect Current Sensors
View Results ( 6 ) Page
N.º de artículo Voltaje de alimentación - Máx. Voltaje de alimentación - Mín. Régimen de corriente Tipo de sensor Tipo de salida
MCQ1805GS-310-BAEC-P 3.6 V 3 V 10 A Current Sense Ratiometric
MCQ1805GS-505-UAEC-P 5.5 V 4.5 V 5 A Current Sense Ratiometric
MCQ1805GS-550-UAEC-P 5.5 V 4.5 V 50 A Current Sense Ratiometric
MCQ1805GS-310-BAEC-Z 3.6 V 3 V 10 A Current Sense Ratiometric
MCQ1805GS-505-UAEC-Z 5.5 V 4.5 V 5 A Current Sense Ratiometric
MCQ1805GS-550-UAEC-Z 5.5 V 4.5 V 50 A Current Sense Ratiometric
Publicado: 2025-03-11 | Actualizado: 2025-04-14