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1 Features

? AEC-Q100 qualified for automotive applications:

– Temperature grade 0: –40°C to 150°C

? Functional Safety-Compliant

– Developed for functional safety applications

– Documentation to aid ISO 26262 system design

up to ASIL B

? High-accuracy, low angle error AMR sensor:

– 0.1° (typical)

– 0.4° (maximum across temperature at 3.3V)

– 0.56° (maximum across temperature at 5.5V)

? High-speed AMR angle sensor:

– Ultra low latency < 2μs supports up to 100krpm

– Angle range: 180°

? Low angle drift eliminates the need for calibration

across temperatures

? Wide operating magnetic field range: 20mT to 1T

? Sine and cosine differential ratiometric analog

outputs

? Supports differential-ended or single-ended

applications

? Fast start-up time: < 40μs

? Integrated Turns Counter provides rotation turns

count using PWM output:

– Low-power mode with turns counter enabled of

50μA

– Intelligent rotation tracking enables to track up

to 8krpm in low-power mode

? Dedicated pin to enter sleep mode: < 5μA

? Supply voltage range: 2.7V to 5.5V

2 Applications

? EPS Motor Position Sensing

? EPS Handwheel Angle Sensing

? BLDC/PMSM Motor Position Sensing

? E-bikes and 2-wheelers

? Wiper Modules and Actuators

? Encoder Position Sensing

? Servo Drive Position Sensors

? Integrated Belt Starter Generators

3 Description

The TMAG6181-Q1 is a high-precision angle sensor

based on Anisotropic Magneto Resistive (AMR)

technology. The device features integrated signal

conditioning amplifiers and provides differential sine

and cosine analog outputs related to the direction of

the applied in-plane magnetic field. This device also

features two independent Hall sensors at X and Y

axes that are used to keep track of rotations.

The TMAG6181-Q1 features a wide operating

magnetic field (20mT – 1T) that enables flexible

mechanical placements as well as low latency (< 2μs)

outputs for high-speed applications like rotor position

sensing. The fast start-up time (<40μs) enables low

power applications by using a sleep pin that enables

the device to enter two low power modes: sleep mode

and a low power turns counting mode. An integrated

turns counter keeps track of the number of rotations,

and the turns counter value is transmitted using PWM

on the TURNS pin.

The TMAG6181-Q1 offers extensive diagnostics and

is designed for Functional Safety applications. The

device performs consistently across a wide ambient

temperature range of –40°C to 150°C with minimal

thermal drift and lifetime errors.