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Monolithic Power Systems MA100
Angular Sensor for 3-Phase Brushless Motor Commutation with Side-Shaft Positioning Capability
Overview
| Topology | Other Topology |
| IC revision | 1.0 |
Description
The MagAlpha MA100 is a magnetic sensor designed to replace the 3 Hall switches for commutation in 3-phase brushless dc motors. The IC detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder attached to the rotor. The MagAlpha is an extremely fast acquisition and processing sensor, allowing accurate angle measurement at speeds from 0 to 120’000 RPM.Since the measurement is spatially confined, the user has flexibility in terms of magnet shapes and configurations. This can help relaxing mechanical tolerances and, in case the end of shaft position is not available, the MagAlpha 100 can also operate away from the axis of rotation (“side-shaft” mounting).
Features
- U V W signals for block commutation
- Built-in linearization for side-shaft mounting
- Adjustable zero
- 500 kHz refresh rate
- Ultra low latency: 3 µs
- Serial interface for settings
- 8.5 mA supply current
More information
Products
| Order Code | Datasheet | Downloads | Product series | Pins (pcs) | Pitch (mm) | Gender | Type | Mount | L (mm) | Working Voltage (V (AC)) | IR (A) | Contact Resistance (mΩ) | Tol. R | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 690367291676 | SPEC | 6 files | WR-MM Female SMT Connector with Latch & Polarization | 16 | 2.54 | Female | Straight | SMT | 24.92 | 250 | 1.5 | 10 | max. | Tape and Reel |
| Order Code | Datasheet | |
|---|---|---|
| 690367291676 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Product series | Pins (pcs) | Pitch (mm) | Gender | Type | Mount | L (mm) | Working Voltage (V (AC)) | IR (A) | Contact Resistance (mΩ) | Tol. R | Packaging | Samples |
|---|