Bumalik sa Monolithic Power Systems (MPS)

Monolithic Power Systems (MPS) MCS1805 Linear Hall-Effect Current Sensor ICs

Monolithic Power Systems (MPS) MCS1805 Linear Hall-Effect Current Sensor ICs are designed for AC or DC current sensing. The differential Hall array cancels out any stray magnetic field. The primary conductor’s low resistance allows large currents to flow within close proximity to the integrated circuit, which contains high-accuracy Hall sensors. This current generates a magnetic field sensed at two different points by the integrated Hall transducers. The magnetic field difference between these two points is then converted into a voltage proportional to the applied current. A spinning current technique is used for a low, stable offset.

The galvanic isolation between the pins of the primary conductive path and the sensor leads allows the MCS1805 to replace optoisolators or other isolation devices. The MCS1805 integrates fast over-current detection (OCD), making monitoring the system for over-current (OC) events simple. The Monolithic Power Systems (MPS) MCS1805 requires a minimal number of external components. The device’s small footprint saves board area and makes it well-suited for space-constrained applications. These devices are available in a SOIC-8 package.

Features

  • 3.3V or 5V single supply options
  • Immune to external gradient magnetic fields by 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 IPMAX
  • Fast OCD with 1µs response time
  • Output voltage (VOUT) proportional to AC or DC currents
  • Ratiometric VOUT from supply voltage
  • Factory-trimmed for accuracy
  • Available in a SOIC-8 package

Applications

  • Motor control
  • Automotive systems
  • Load detection and management
  • Switch-mode power supplies (SMPS)
  • Over-current fault protection

Typical Application

Application Circuit Diagram - Monolithic Power Systems (MPS) MCS1805 Linear Hall-Effect Current Sensor ICs

Development Tool

Monolithic Power Systems (MPS) EVCS1805 Evaluation Boards

Showcase the MCS1805 series for AC or DC sensing with integrated over-current detection (OCD).

Learn Moretungkol sa Monolithic Power Systems (MPS) EVCS1805 Evaluation Boards View Productskaugnay ng Monolithic Power Systems (MPS) EVCS1805 Evaluation Boards
Inilathala: 2025-07-18 | Na-update: 2025-07-23