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AS5130

Datasheet - Application In form atio n

8 Application Information

Benefits of AS5130 are as following:

Complete system-on-chip

Flexible system solution providing absolute angle position, with serial data and PWM output

Ideal for applications in harsh environments due to magnetic sensing principle

High reliability due to non-contact sensing

Robust system, tolerant to misalignment, airgap variations, temperature variations and external magnetic fields

8.1 Application Example I: 3-Wire Sensor with Magnetic Field Strength Indication

In Figure 22, a simple 360º sensor with PWM output is shown. The complete application requires only three wires, VDD, VSS and the PWM

output. The circle over the center of the chip represents the diametrically polarized magnet. Additionally, the CAO pin will deliver an analog

voltage indicating a missing magnetic field. This signal could be used to drive an external LED or to detect an alert signal.

Figure 22. 3-Wire Angle Sensor

AS5130

100n

+5V

CS

DCLK

DIO

CAO

1k

LED1

AS5130

AS5130

PROG

S

N

PWM out

PWM

CAO