Device Overview
MA302GQ-Z is an active MPS MagAlpha contactless magnetic angle sensor in QFN-16 (3 mm x 3 mm). It measures the absolute angular position of a permanent magnet and combines SPI angle readout with programmable ABZ quadrature and UVW commutation-style outputs.
Key Selection Information
| Parameter | Verified Information |
|---|---|
| Manufacturer | Monolithic Power Systems (MPS) |
| Exact MPN | MA302GQ-Z |
| Sensor type | Contactless magnetic absolute angle sensor |
| Absolute angle resolution | 12 bit |
| Digital interface | SPI for angle readout and configuration |
| Incremental output | 10-bit ABZ quadrature encoder; 1 to 256 pulses per turn programmable |
| Commutation output | UVW interface with 1 to 8 pole-pair emulation |
| Speed range | 0 to 60,000 rpm angle measurement |
| Supply | 3.3 V; about 12 mA |
| Operating temperature | -40 °C to +125 °C |
| Mounting geometry | End-of-shaft and off-axis / side-shaft configurations supported |
| Package / packing | QFN-16, 3 mm x 3 mm; -Z denotes tape-and-reel packing |
| Manufacturer status | Active |
Engineering Selection Notes
MA302 should be selected as a complete magnetic-mechanical system, not from the 12-bit number alone. Magnet diameter, field strength, air gap, axial/radial offset, and end-of-shaft versus side-shaft geometry directly affect angle error and usable field margin. MPS provides magnetic design guidance because mechanical stack-up is part of sensor accuracy.
SPI gives the host an absolute digital angle, while ABZ and UVW can provide hardware-friendly incremental or motor-commutation outputs without continuously decoding SPI in the control loop. The choice between these outputs depends on whether the system needs absolute position, encoder-style pulse feedback, or phase-related commutation signals.
On-chip nonvolatile memory stores settings such as zero position, ABZ configuration, UVW pole-pair emulation, and magnetic-field thresholds. That reduces external configuration storage, but programmed settings become part of manufacturing control and should be documented alongside the BOM.
Official Engineering Resources
- MPS MA302 product page -active part numbers, features, magnetic geometry support and design resources.
- MPS MA302 datasheet
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment.
Request a Quote
For MA302GQ-Z sourcing, provide the required quantity, destination, target Date Code if applicable, and any inspection or testing requirements.
