AS5172E High Resolution Position Sensor
High-resolution on-axis magnetic angular position sensor with PSI5 output
Features
- 12-bit resolution @90° minimum arc
- Low output noise, low inherent INL
- Magnetic stray field immunity
- Functional safety, diagnostics
- AEC-Q100 Grade 1 qualified
- System cost reduction – no PCB and additional components are needed
Benefits
- Resolve small angular excursion with high accuracy
- Accurate angle measurement
- Higher durability and lower system costs (no shield needed)
- Enabler for safety critical applications
- Suitable for automotive applications
- SIP Package (System-in-Package)
Product parameters
| Resolution [bit] | 12 (14) |
|---|---|
| Interface | PSI5 |
| Output | UART-over-PSI5 |
| Max. Speed [rpm] | |
| Overvoltage Protection | Yes |
| Redundant | |
| Supply Voltage [V] | 4.0 to 12.0 |
| Temperature Range [°C] | -40 to +125 |
| Package | SiP (system in package) |
| Automotive Qualified | Yes |
| Longevity Program | January 2031 |
General description
The AS5172 is a magnetic position sensor with a high-resolution 12-bit PSI5 output according PSI5 specification version 1.3 and 2.1.
Based on a hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full-turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can be programmed to achieve the best resolution for the application. To measure the angle only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5172 operates up to a voltage of 16.5V and is protected against overvoltage up to +20V. In addition, the supply pins are protected against reverse polarity up to – 18V.
This product suits for the following applications:
- Brake and Gas Pedals
- Throttle Valve and Tumble Flaps
- Steering Angle Sensors
- Chassis Ride
- EGR
- Fuel-Level Measurement Systems
- 2/4WD Switch
- Contactless Potentiometers
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | AS5172E_AS5172F Datasheet v1-02 | English |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| RoHS Certificate | RoHS Certificate_AS5172E Rev.2 | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | AS5172 Block Diagram | English | ||
| Image | SiP-Package_A4 Magnetic Field Lines |
Related products
AS5172A-B High Resolution Position Sensor
AS5172
The AS5172 is a magnetic position sensor with a high-resolution 12-bit PSI5 output according PSI5 specification Version 1.3 and 2.1.
Based on a Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full-turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can programmed to achieve the best resolution for the application. To measure the angle, only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5172 operates up to a voltage of 16.5V and is protected against overvoltage up to +20V. In addition, the supply pins are protected against reverse polarity up to – 18V.
With two decades of magnetic sensor system know-how, we have broad experience in selecting the most suitable magnets. ams experts recommend the following magnet suppliers.
Based on a Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full-turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can programmed to achieve the best resolution for the application. To measure the angle, only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5172 operates up to a voltage of 16.5V and is protected against overvoltage up to +20V. In addition, the supply pins are protected against reverse polarity up to – 18V.
With two decades of magnetic sensor system know-how, we have broad experience in selecting the most suitable magnets. ams experts recommend the following magnet suppliers.