ACS711KLCTR-12AB-T

The ACS711KLCTR-12AB-T is a highly integrated Hall-effect current sensor IC manufactured by Allegro MicroSystems. This device is designed for precise current sensing in a variety of applications, including motor control, power management, and battery monitoring.

Key Features:

1. Current Sensing: The ACS711 is capable of measuring both AC and DC currents, making it versatile for different applications. It provides an analog output that is proportional to the sensed current.

2. Hall-Effect Technology: Utilizing Hall-effect sensing technology, the ACS711 provides galvanic isolation between the high-voltage circuit and the low-voltage control side, ensuring safety and reliability in operation.

3. Sensitivity: The device has a sensitivity of 66 mV/A, which allows for accurate current measurements. This sensitivity can be adjusted based on the application requirements.

4. Supply Voltage: The ACS711 operates with a supply voltage range of 3.0V to 5.5V, making it compatible with a wide range of microcontrollers and digital signal processors.

5. Output Voltage Range: The output voltage of the sensor varies linearly with the input current, typically centered around VCC/2, which allows for easy interfacing with analog-to-digital converters (ADCs).

6. Temperature Range: The device is rated for operation over a wide temperature range, typically from -40°C to +125°C, ensuring reliable performance in various environmental conditions.

7. Package Type: The ACS711KLCTR-12AB-T is housed in a compact, surface-mount package (SOIC-8), which facilitates easy integration into printed circuit boards (PCBs) and helps save space in designs.

8. Low Noise: The sensor features low noise characteristics, which enhances the accuracy of current measurements and reduces the impact of external electromagnetic interference.

9. Applications: Common applications for the ACS711 include power supply monitoring, motor control systems, battery management systems, and renewable energy systems, such as solar inverters.

Electrical Characteristics:

• Supply Current: The device typically consumes a low supply current, which is beneficial for battery-operated applications.
• Linearity: The output is highly linear over the specified current range, ensuring that the measurements are reliable and consistent.

Conclusion:

The ACS711KLCTR-12AB-T from Allegro MicroSystems is a robust and reliable current sensor that combines precision, safety, and ease of use. Its Hall-effect sensing technology, combined with a wide operating range and low noise characteristics, makes it an ideal choice for a variety of current sensing applications in both industrial and consumer electronics.