Current Sensor ICs

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Power architects are continually asked to push the boundaries for system efficiency, response time, small size, and low cost in new power system designs.

Most modern designs require current sensors to help implement the complicated control, telemetry, and protection circuitry essential in meeting these difficult design goals.

Often, choosing the right current sensor plays key part in achieving these goals, especially when higher voltages, higher power levels and difficult ambient conditions come into play.

Aceinna’s new family of MCx1101 AMR current sensor ICs now provide design engineers with a compelling alternative for new system designs by offering benchmark performance for accuracy, high bandwidth with low phase delay and response time all integrated within an easy-to-use, cost effective, single component solution.

The MCx1101 is an ideal match for many challenging power applications including motor control, inverters, uninterruptible power supplies (UPS), and industrial power systems as well as AC-DC and DC-DC power systems used in the telecom and high performance computing (HPC) markets.

MCA2101-20-3

20A 3.3V Current Sensor IC,Fixed Gain Output

 

The fully integrated 3.3V MCA2101-20-3 current sensor IC is AEC-Q100 qualified for demanding automotive power conversion and management applications enabling automotive engineers to maximize the benefits of using fast switching SiC/GaN power devices and simplify system design and improve overall efficiency and provide industry benchmark performance for accuracy, bandwidth, and output step response time. With total error as low as 1% (typ), 3dB bandwidth of 5MHz with low phase delay, and <80ns transient response. The MCA2101-5-3 has 4.8kV of isolation (supports working voltages up to 1097Vrm) and provides a fixed gain output with a 3.3V supply voltage.

Specifications
Nominal Current +/- 20A
Accuracy 0.6% of Reading
Bandwidth 5MHz
Response Time 80ns
Supply Voltage 3.3V
Offset 20mA
Package Type SOIC16
Package Size 10 x 10mm
Features and Benefits
  • AEC-Q100 qualified for automotive applications
  • Fully integrated single-chip design in SOIC16 package
  • High 3dB amplitude bandwidth of 5MHz for fast switching SiC/GaN
  • Low phase delay for fast and stable power control  
  • Fast output response time of 80ns for optimum protection
  • Low noise density of 35 µA/sqrt(Hz) for high SNR
  • High PSRR of -80dB @1kHz
  • Cost-optimized for volume applications
  • High isolation in SOIC16 package
    • 4.8kV isolation dielectric strength
    • 1097Vrms working voltage
    • 400V working voltage for reinforced isolation
Applications
  • On-board chargers and fast DC chargers
  • Automotive motor drivers, inverters and servo drives
  • Automotive DC-DC, AC-DC power supplies
  • Solar panel inverters
  • Data center power supplies
  • Uninterruptible power supplies (UPS)
  • AC-DC Power systems (PFC)
Technical documents
Document TypeTitleSize(KB)Date
Data Sheet6020-2104-01_B DATASHEET, MCA2101-xx-3, Current Sensor LDO 3.3V.pdf757Feb 14, 2024