10 bit magnetic rotary position sensor OSRAM AS5050A BQFT with SPI interface and compact QFN package

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Product Description

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. It is available in a compact QFN 16-pin 4x4x0.85 mm package and operates over a temperature range of -40C to 85C.

Key Benefits & Features

Precise and reliable absolute angle measurement
10-Bit absolute angle position indication
Very low power consumption (3A in low power mode)
High reliability sensing, immune to external magnetic stray fields
Synchronization between microcontroller and sensor via interrupt pin
Ideal for small and compact designs (QFN-16 4x4 package)
Industry-standard 3- or 4-wire SPI interface

Applications

Servo motor control
Battery operated systems
Robotics

Technical Specifications

Parameter	Symbol	Conditions	Min	Typ	Max	Units	Comments
DC supply voltage	VDD		3.0		3.6	V
Peripheral supply voltage	VDDp		1.8		VDD	V
Input pin voltage	VIN		-0.3		VDDp + 0.3	V
Ambient operating temperature	Tamb		-40		85	C
Current consumption (Normal operating mode)	ION			8.5		mA
Current consumption (Low power mode with deactivated POR)	IOFF	(POR_OFF = 0x5A)		3		A
Readout rate (Time between READ ANGLE command and INTERRUPT)	treadout				500	s
Power up time (Minimum time after power up before sensor is operational)	tPwrUp			580		s
Lateral displacement range (Misalignment of magnet center to die center)	Rd				0.5	mm
Magnetic input field	BZ		30		90	mT
Noise (rms) (Gain = 00)	N00	Within Bz00 magnetic input field range		0.128		degr ms
Noise (rms) (Gain = 01)	N01	Within Bz01 magnetic input field range		0.149		degr ms
Noise (rms) (Gain = 10)	N10	Within Bz10 magnetic input field range		0.192		degr ms
Noise (rms) (Gain = 11)	N11	Within Bz11 magnetic input field range		0.256		degr ms
Integral Non Linearity	INL	Using Bomatec 6x2.5 mm NdFeB magnet with max 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 (VDDp > 2.7V)	VIL		0.3 * VDDp			V
Low level input voltage (VDDp	VIL		0.25 * VDDp			V
Input leakage current	ILEAK				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
Storage temperature	Tstrg		-55		125	C
Package body temperature (Reflow peak soldering)	TBODY				260	C	IPC/JEDEC J-STD-020
Moisture Sensitive Level	MSL			3			Max floor life 168h