AK09970N

[AK09970]

Product brief 2017/1

- 1 -

planes independently. From its compact foot print, thin package, and extremely low power consumption,

it is suitable for a wide range of applications such as connected home, door & window opening/close

sensing, and magnetic tamper detection of IoT systems or smart meters just to name a few.

2. Features

 Functions:

 16 bit data out for each 3-axis magnetic component

 Programmable threshold 3-axis magnetometer

 Built-in A to D Converter for magnetometer data output

 Measurement range: X and Y-axis  ±34.9mT, Z-axis  ±101.5mT

 Serial interface

 I2C bus interface

Standard and Fast mode compliant with Philips I2C specification Ver.2.1

 4-wire SPI

 Operation mode

 Power-down, Single measurement, Continuous measurement

 3-axis programmable switch function

 Output pin for event notification

 INT pin and OD-INT pin

 Operating temperatures:

 -40˚C to +85˚C

 Operating supply voltage:

 +1.7V to +3.6V

 Current consumption (VDD = +1.8V):

 Power-down: 2.0 nA (typ.)

 Measurement:

 Average current consumption at 1 Hz/10Hz repetition rate

 Low power drive: 0.6 µA(typ.)@1HzODR, 2.7 µA(typ.)@10HzODR

 Low noise drive: 1.5 µA(typ.) @1HzODR, 11.9 µA(typ.)@10HzODR

[AK09970]

Product brief 2017/1

- 2 -

The AK09970 supports wide measurement range with high resolution in 3-axis detection and captures

magnetic fields in 3-dimensions. With these abilities, it is great device for controlling the direction of

security cameras and connected home, (smart home, smart house), smart locks, along with door and

window open/close detection.

resolution of 1.1uT/LSB in High Resolution mode.

The AK09970 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.

digital data, (supporting I2C/SPI communications). It outputs a Data Ready alert to the dedicated

threshold is sent, the AK09970 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.

[AK09970]

Product brief 2017/1

- 3 -

4. Package

4.1. Outline Dimensions

[mm]

5