MCS1801 is a linear hall-effect current sensor for AC or DC current sensing. The hall array is differential which cancels out any stray magnetic field. A primary conductor with a low resistance allows current to flow close to IC, which contains high-accuracy hall-effect sensors. This current generates a magnetic field that is sensed at two different points by the integrated hall-effect transducers. The magnetic field difference between these two points is then converted into a voltage that is proportional to the applied current. A spinning current technique is used for a low stable offset. The galvanic isolation between pins of primary conductive path and the sensor leads allows MCS1801 to replace opto-isolators or other isolation devices. It requires a minimal number of readily available, standard external components. MCS1801 is available in SOIC-8 package. Applications include motor control, automotive systems, load detection and management, SMPS and overcurrent fault protection.
- ±12.5A optimized primary current range, 160mV/A typical sensitivity
- 5V, linear hall effect current sensor with ±3% accuracy over temperature
- Immune to external magnetic fields by differential sensing
- 200VRMS working voltage for basic isolation
- 1.2mohm internal conductor resistance, operating temperature range from -40°C to +125°C
- Device's small footprint saves board area and makes well-suited for space-constrained applications
- Adjustable bandwidth up to 100KHz, 4µs output rising time
- Ratiometric output from supply voltage
- Output proportional to AC or DC currents, factory-trimmed for accuracy, no magnetic hysteresis
- Integrated shield suppressing capacitive coupling from current conductor to die (up to 10V/ns)
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size. Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MCS1801GS-12-P |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
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