TMR Digital Push-Pull Magnetic Sensor-Switch

The RedRock® RR123-1H02-612 is a TMR Digital Push-Pull Magnetic Sensor ideal for use in small battery-powered applications such as portable medical devices. It is based on patented Tunneling Magnetoresistance (TMR) technology with seamless CMOS integration.

The RR123-1H02-612 features an operate sensitivity of 7G (0.7mT), with an omnipolar magnetic field response. It offers a voltage range from 1.0V up to 3.6V, ideal for applications that use single cell 1.5V batteries. It has the lowest average current drain (20nA) for an active magnetic sensor, operating under 2Hz and with a temperature range from -40°C up to +85°C. This sensor/switch can be used to efficiently source up to 20mA of current to an application circuit. It also has a Latch Control Pin (LCP), which gives the option to keep the output in a given state regardless of any changes in magnetic field.   A coupon board, designed to showcase this sensor’s operation & capabilities is also available.

• TMR digital push-pull magnetic sensor
• Operate sensitivity of 7G
• Lowest Average Current of 20nA
• Latch Control Pin Locks Output Voltage in Current State
• Supply Voltage range of 1.0V – 3.6V
• Can Efficiently Source Up to 20mA with a Low PMOS RDS (on)
• Omnipolar Push-Pull Response
• Operating Frequency of 1.0Hz
• Temperature range of -40°C to +85°C
• LGA-4 package

Typical applications for the Coto Technology RR123 TMR Digital Push-Pull Magnetic Sensor include:

• Switch Battery Power to Circuit
• Wake-Up uProcessor
• Proximity Detection
• Door & Lid Closure Detection
• Portable Medical Devices

Coto is a worldwide market leader of small signal-switching products sold into the Automatic Test Equipment, Data Acquisition, Instrumentation, Process Control, Telecommunications, Medical and Security markets. Coto specialises in the manufacture of relay, switch and sensor products. Coto are the pioneers of the RedRock® analog and digital TMR magnetic sensors, offering the lowest power consumption, highest sensitivity, ultra-miniature package size, short lead times and a highly-competitive price. Please visit https://cotorelay.com/ for more information.