Compact 10-Bit Magnetic Rotary Position Sensor AMS AS5050A-BQFT for Precise Angle Measurement
AS5050A Low Power 10-Bit Magnetic Position Sensor
The AS5050A is a single-chip, on-axis magnetic rotary position sensor designed for low voltage and low power applications. It integrates a Hall element array, a high-resolution ADC, and a smart power management controller. The sensor transmits angle position, alarm bits, and magnetic field information via a 3-wire or 4-wire SPI interface. Key benefits include precise and reliable absolute angle measurement, very low power consumption (3A in low power mode), immunity to external magnetic stray fields, and a compact QFN 16-pin 4x4x0.85 mm package. It is ideal for small and compact designs in applications such as servo motor control, battery-operated systems, and robotics.
Product Attributes
- Brand: ams OSRAM
- Package: QFN 16-pin 4x4x0.85 mm
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Units | Description |
|---|---|---|---|---|---|---|
| DC supply voltage (VDD) | 3.0 | 3.6 | V | Analog and digital power supply | ||
| Peripheral supply voltage (VDDp) | 1.8 | VDD | V | Supply Peripheral power supply | ||
| Ambient operating temperature | -40 | 85 | C | |||
| Current consumption (Normal operating mode) | 8.5 | mA | ||||
| Current consumption (Low power mode) | with activated POR | 33 | A | |||
| Current consumption (Low power mode) | with deactivated POR | 3 | A | |||
| Readout rate (treadout) | Time between READ ANGLE command and INTERRUPT | 500 | s | |||
| Power up time (tPwrUp) | Minimum time after power up before the sensor is operational | 580 | s | |||
| Lateral displacement range (Rd) | Misalignment of the center of the magnet to the center of the die | 0.5 | mm | |||
| Magnetic input field (BZ) | 30 | 90 | mT | |||
| Noise (rms) (N00) | Within Bz00 magnetic input field range and Gain = 00 | 0.128 | degr | |||
| Noise (rms) (N01) | Within Bz01 magnetic input field range and Gain = 01 | 0.149 | degr | |||
| Noise (rms) (N10) | Within Bz10 magnetic input field range and Gain = 10 | 0.192 | degr | |||
| Noise (rms) (N11) | Within Bz11 magnetic input field range and Gain = 11 | 0.256 | degr | |||
| Integral Non Linearity (INL) | Using Bomatec 6x2.5 mm NdFeB magnet with a maximum x/y-displacement radius of 250 m from package center | -1.41 | 1.41 | deg | ||
| High level input voltage (VIH) | 0.7 * VDDp | V | ||||
| Low level input voltage (VIL) | VDDp > 2.7V | 0.3 * VDDp | V | |||
| Low level input voltage (VIL) | VDDp | 0.25 * VDDp | V | |||
| Input leakage current | 1 | A | ||||
| High level output voltage (VOH) | VDDp - 0.5 | V | ||||
| Low level output voltage (VOL) | VSS + 0.4 | V | ||||
| Capacitive load (CL) | 35 | pF |
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