MCA1101-5-5 MCA11055 ±5A Bidirectional Analog Current Sensor (AMR)

MCA11055 ±5A Fully Integrated AMR Bidirectional Analog Output Current Sensor

The MCA11055 (silkscreen: MCA1101-5-5) is a fully integrated, high-performance ±5A bidirectional analog output current sensor based on advanced anisotropic magnetoresistive (AMR) technology. It delivers high accuracy, low noise, excellent linearity, and repeatability, making it ideal for demanding power electronics applications.

High Accuracy Current Sensing for Power Electronics and Motor Control

With a 1.5MHz bandwidth (3dB), fast response time, low primary resistance, and low phase delay, the MCA11055 enables precise current feedback for high-speed control loops. It operates on a single 5V supply and includes integrated features such as zero-current reference and overcurrent detection.

Technical Specifications (MCA11055)

Key Features

• AMR-based fully integrated bidirectional current sensing
• High accuracy and excellent frequency response
• 1.5MHz bandwidth with low phase delay
• Fast 300ns output response time
• Low 0.9mΩ primary resistance for minimal power loss
• Single 5V operation with low 6.5mA supply current
• Zero-current reference (Vref) pin
• Overcurrent fault detection support
• SOIC-16 compact package
• Wide -40°C to +105°C industrial temperature range

Typical Applications

• Server, telecom, and industrial power supplies
• Motor control loops & position control
• Solar inverters and DC optimizers
• Battery management systems (BMS)
• UPS and high-voltage DC bus converters
• Power factor correction circuits
• Uninterruptible power supplies (UPS)