DO NOT TOUCH THE BOARD WHILE THE EXTERNAL POWER SUPPLY IS ON!

Note: This Click board™ needs to be used by trained personnel only while applying high voltages. Special care should be taken when working with hazardous voltage levels.

HOW DOES IT WORK?

Current Sens 2 Click is based on the HO 10-P, an AC/DC current transducer from LEM USA. The HO 10-P is well-known for measuring DC, AC, and pulse currents up to 10ARMS with galvanic isolation between the primary and secondary circuits. With its core built on the open-loop Hall effect measuring principle, the Current Sens 2 Click ensures precise and reliable current measurements. Its capability covers a variety of industrial applications, including AC variable speed drives, UPS systems, SMPS, and power supplies for welding, which benefit from low power consumption and high immunity to external interference. The device's fast response time suits dynamic and demanding environments.

The HO 10-P is designed for through-hole PCB mounting and features a sizable aperture (8x8mm) for the primary conductor, ensuring easy integration and versatility. Although the sensor can measure current up to 10A, its sensitivity can be altered in three specific scenarios. When current is applied to the input, for instance, pin 6, and the output is obtained from pin 11, the sensor's sensitivity becomes x1. This configuration is considered as the wire being wound only once around the sensor's core, marking the first scenario.

In another configuration, short-circuiting pins 7 and 10 while keeping the input and output on pins 6 and 11 doubles the sensitivity (x2). Similarly, sensitivity triples (x3) when pins 7-10 and 8-9 are short-circuited, maintaining the input and output on pins 6 and 11. Maintaining a straight signal path from the input to the output is crucial, as depicted in the schematic (6-11, 7-10, 8-9). It's also possible to measure the conductor's current by pulling it through the sensor's core and allowing current to flow through it.

The sensor is powered by the 5V mikroBUS™ power rail and outputs the sensed current as an analog signal through the AN pin. Additionally, an orange LED and a dedicated pin (OCD) on the mikroBUS™ socket signal an overcurrent condition, providing enhanced safety and monitoring features.

This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.

SPECIFICATIONS