High Accuracy Current Sensor IC with1.5MHz 3dB Bandwidth and Isolation±5A, ±20A, ±50A, 3.3V, Fixed GainMCA1101-xx-3FEATURESDESCRIPTIONAMR based integrated current sensor The MCA1101 products are ±5A, ±20A, ±50A fully integrated Superior Range & Accuracy bi-directional analog output current sensors that deliver both 0.6% typical total error @25°C (MCA1101-20-3) high accuracy and high bandwidth. ACEINNA’s state-of-the- 2.0% max error over temperature (MCA1101-20-3) art Anisotropic Magneto Resistive (AMR) sensor technology Superior Frequency Response provides inherently low noise, excellent linearity and 1.5 MHz (typical 3dB BW) repeatability. Fast output response time (300ns typical) A fully isolated current path is provided by a low resistance Low Primary Resistance (0.9 mΩ) copper conductor integrated into the package making it Single 3.3V Supply Operation suitable for both high-side and low side bi-directional current Low power consumption (4.5mA typical) sensing. The high bandwidth of 1.5MHz (3dB) and low phase Zero-Current Reference Pin (Vref) delay makes it ideal for current sense feedback loops in motor Overcurrent fault detection control, inverters, uninterruptible power supplies, battery SOIC-16 package (RoHS/REACH compliant) management, power factor correction, high voltage -40 to +105°C Operating Temperature Range distribution bus converters and power supply applications, UL/IEC/EN60950-1 Certified including those with fast switching wide-bandgap SiC and 4.8 kV Dielectric Strength Voltage GaN based power stages. 1097 VRMS Basic Isolation Voltage These devices are factory-calibrated to achieve low offset 400 VRMS Reinforced Isolation Voltage error and provide a precise analog voltage output that is
linearly proportional to the conduction current (AC or DC) with sensitivity (mV/A) compatible with A/D converters and analog APPLICATIONS control loops in power systems. The AMR sensor device structure is designed to eliminate sensitivity to stray and Server, Telecom, & Industrial Power Supplies common mode magnetic fields. Power Aggregation, Over-Current Protection Dynamic Current Sensing in Feedback Loops Due to the inherently low output noise of ACEINNA’s sensor PFC and Inverter Control technology, additional filtering is not required to reduce noise Motor Control Loops & Protection that reduces accuracy at low-level currents in systems with Automation, Robotics, Servo Systems dynamic load profiles. Automotive & EV Power Systems The MCA1101 products in SOIC-16 package are simple to Solar Inverters and Optimizers use with no or minimal external components (other than Grid-Tie and Storage Current Monitoring decoupling capacitor) enabling fast design, supports high MPPT Circuit Current Monitoring isolation and are UL/IEC/EN60950-1 certified. Central Inverter Current MonitoringConsumerMotor Balance and Remote Device Monitoring Home Automation Control & IOT remote sensing VCC
R1 33K IP+ Optional circuitry for VOC overcurrent detection R2 IP+ Primary Current GND IP+ Input GND To ADC pin on IP+ Vref MCU or A/D input Vout To ADC pin on IP- VCC MCU or A/D input IP- Primary Current GND VCC R3 IP- Output VCC C1 100nF 10K Intterupt IP- FAULTB to MCU Figure 1 - Application Circuit Information furnished by ACEINNA is believed to be accurate and reliable. However, no responsibility is assumed by ACEINNA for its use, or for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of ACEINNA. ACEINNA reserves the right to change this specification without notification.
