RedRock® RR122 Series TMR Low-Power Magnetic Switch Sensor

Product Highlights > RedRock® RR122 Series TMR Low-Power Magnetic Switch Sensor

            RedRock® RR122 Series TMR Low-Power Magnetic Switch Sensor
                    Coto Technology's RedRock RR122 series TMR ultra-low-power magnetic switch sensor features high sensitivity and miniature size
    

Coto Technology's RedRock RR122 series of digital tunneling magnetoresistance (TMR) low power magnetic switch sensors are ideally suited to the demands of next generation security, metering, medical, automotive, instrumentation, industrial markets, and any application requiring a magnet and sensor. Due to their ultra-low power (especially important in battery-powered applications), high sensitivity, miniature size, robustness, and availability, TMR sensors are now a popular alternative to both Hall effect sensors and reed switches.

Based on patented TMR technology with seamless CMOS integration, the RedRock RR122 series incorporates digital magnetic sensors ideal for use in medical, industrial, automotive, and consumer applications. The RR122 series features operate sensitivities ranging from 9 G to 70 G, with omnipolar, unipolar, or bipolar magnetic field responses. The series offers a wide supply voltage range from 1.7 V up to 5.5 V, ideal for applications ranging from small battery-powered electronics to industrial machinery. They have low average current drain for an active magnetic sensor with a wide range of operating frequencies ranging from 2 Hz up to 10 kHz. High operating temperatures range from -40°C up to +125°C.

Target applications include fluid level detection; door, window, or lid open-close detection; water and gas meters; proximity sensing; rotary sensing; and any application where the device or product needs to wake up, turn on, and perform, thus providing a true out-of-the-box experience. These tiny sensors offer high magnetic sensitivity with high hysteresis, EMF resistance, and small package size, all while consuming extremely low power.

Features

Low power consumption
High sensitivity
Stable temperature performance
Resistant to mechanical stress

Tiny size
Turbo mode (RR122-3CU2/3-515 only)
REACH compliant
RoHS compliant

Applications

Door or lid closure detection
Smartphones, tablets, and laptops
Proximity detection
Wake-up μProcessor
Contactless sensing
Portable medical devices
Liquid level sensing

Position sensing
Anti-tamper sensing
Speed and rotation sensing
Water, electric, and gas meters
Motor controllers
Consumer electronics

Application Notes