TMAG6181-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 0: –40°C to 150°C

• Functional Safety-Compliant targeted

– Developed for functional safety applications

– Documentation to aid ISO 26262 system design

up to ASIL B will be available at production

release

• High-precision and high-speed AMR angle sensor:

– Angle error : 0.1° (typical)

– Angle error : 0.6° (maximum across

temperature)

– Ultra low latency < 2 μs supports up to 100

krpm

– Angle range: 180°

• Low angle drift eliminates the need for calibration

across temperatures

• Wide operating magnetic field range: 20 mT – 1 T

• Sine and cosine differential ratiomentric analog

outputs

• Supports differential-ended or single-ended

applications

• Fast start-up time: < 40 μs

• Integrated Turns Counter provides rotation turns

count using PWM output:

– Low-power mode with turns counter enabled

consumes < 45 μA

– Intelligent rotation tracking enables to track up

to 8 krpm in low-power mode

• Dedicated pin to enter sleep mode: < 5 μA

• Supply voltage range: 2.7 V to 5.5 V

2 Applications

• Electric Power Steering

• Steering Angle Sensor

• BLDC/PMSM Motor Position Sensing

• Wiper modules

• Actuators

• Servo drive position sensors

• Integrator 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 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 (20 mT – 1 T) that enables flexible

mechanical placements. The device features an ultra

low latency (< 2 μs) on the sine and cosine outputs

and is best suited for high speed applications like

rotor position sensing. The fast start-up time (< 40 μs)

enables low power applications.

The device integrates a turns counter to keep track

of the number of rotations and counter value is

transmitted using PWM on the TURNS pin. The

device features a SLEEPB pin, that enables it to enter

two low power modes, sleep mode and a low power

turns counting mode.

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.