Replacement P/N
AK09970N
EOL
Tri-axis Magnetic Sensor IC with Digital Output
Tri-axis Magnetic Sensor IC with Digital Output
EOL
Description
The AK09970N is a digital output 3D magnetic sensor that can select high resolution setting and wide measurement range setting. The AK09970N has a high sensitivity setting of 36mT on tri-axis. It is able to measure a wide range of magnetic field from microtesla to millitesla such as from geomagnetic to a magnet since it has high measurement resolution of 1.1μT/LSB in high sensitivity mode. In addition, wide range setting of 101mT can be achieved via the Z axis.
Key Features
Low-power Consumption when Battery Life is Critical The AK09970N can operate using only a few μA, thus consuming a very low current that satisfies a demand of IoT products, (Refer to the Specification Table). It contributes to a long battery life of a product that needs constant acquisition of sensor data to monitor an object’s status.
Magnetic Field Output (Digital)/ Data Ready Alert (DRDY bit) The AK09970N measures magnetic field on all tri-axis via intermittent drive and outputs the result as digital data, (supporting I?C / SPI communications). It outputs a Data Ready alert to the dedicated register when the measurement data is updated. (0.25 / 0.5 / 1 / 10 / 20 / 15 / 100Hz interval modes or single measurement mode is selectable for intermittent drive options.)
Magnetic Event Interrupt Function The AK09970N has magnetic event interrupt pins. Two thresholds can be programmed for each axis, (setting the resolution equal to the measuring resolution). When a magnetic field that exceeds the threshold is sent, the AK09970N outputs a “Magnetic Event” interrupt to registers or external output pins. The magnetic event that causes an interrupt output that can be selected freely by setting a register. (Data Ready alert mentioned in 3 can also be output from an interrupt pin). Two interrupt pins are available for magnetic event: the INT pin for push-pull output and the ODIN pin for open-drain output. Therefore, the output format can be selected depending on the customer’s product.
Applications
IoT, Security Applications, (Door, Window open/close detection), Monitoring Applications for Factory Equipment, etc.
Specifications
Part Number |
AK09970N |
---|---|
Power Supply Voltage (MIN.) [V] |
1.7 |
Power Supply Voltage (MAX.) [V] |
3.6 |
Magnetic Sensitivity [μT/LSB] |
1.1 |
Measurement range [mT] |
X, Y, Z ±36 |
Measurement Time [ms] |
0.23 |
Noise (Power Mode) [nT rms] | |
Current Consumption (@100Hz ODR) [μA] |
27 |
Current Consumption when measuring [mA] |
1.5 |
Output pin |
Interrupt pin (CMOS / Open Drain) |
Control Interface |
SPI / I?C |
Operating Temperature [℃] |
-40 to 85 |
Device Package |
HWQFN |
Number of Pins |
16 |
Product Information
Part Status |
EOL |
---|---|
Pb Free |
Yes |
Halogen Free |
Yes |
MSL |
MSL1 |
Packaging |
TAPE |
JEDEC Standard Packaging |
Compliant |
Minimum Order Quantity [pcs.] |
4000 |
Replacement P/N |
Block Diagram