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AS5147U Datasheet Preview

AS5147U Datasheet

14-Bit Dual-Die On-Axis Magnetic Rotary Position Sensor

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General Description
AS5147U/AS5247U
14-Bit Dual-Die On-Axis Magnetic
Rotary Position Sensor with Up to
14-Bit Binary Incremental Pulse Count
The AS5147U/AS5247U is a high-resolution redundant rotary
position sensor for fast absolute angle measurement over a full
360-degree range. This position sensor is equipped with a
revolutionary integrated dynamic angle error compensation
(DAEC™) with almost 0 latency at higher rotational speed. For
increased signal quality at lower rotational speed, the dynamic
filter system (DFS™) reduces transition noise.
The robust design of the device suppresses the influence of any
homogenous external stray magnetic field. A standard 4-wire
SPI serial interface with a CRC protection allows a host
microcontroller to read 14-bit absolute angle position data
from the AS5147U/AS5247U and to program non-volatile
settings without a dedicated programmer.
Incremental movements are indicated on a set of ABI signals
with a maximum resolution of 16384 steps / 4096 pulses per
revolution.
Brushless DC (BLDC) motors are controlled through a standard
UVW commutation interface with a programmable number of
pole pairs from 1 to 7. The absolute angle position is also
provided as PWM-encoded output signal.
The AS5147U/AS5247U supports embedded self-diagnostics
for fulfilling up to ASIL D in safety relevant applications.
The AS5247U is using the ams stacked die technology in a
TQFP-32 (7x7) package. The AS5147U sensor is available in a
TSSOP14 Package.
Ordering Information and Content Guide appear at end of
datasheet.
ams Datasheet
[v1-07] 2020-Sep-03
Page 1
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ams

AS5147U Datasheet Preview

AS5147U Datasheet

14-Bit Dual-Die On-Axis Magnetic Rotary Position Sensor

No Preview Available !

AS5147U/AS5247U− GeneralDescription
Figure 1:
Added Value of Using the AS5x47U
Key Benefits & Features
The benefits and features of this device are listed below:
Benefits
Easy to use – saving costs on DSP
Higher durability and lower system costs (no
shield needed)
Enabler for safety critical applications
Suitable for automotive applications
Versatile choice of the interface
Features
DAEC ™ Dynamic angle error compensation
DFS ™ Dynamic filter system
Magnetic stray field immunity
Developed according ISO26262, diagnostics, dual
redundant chip version ASIL-D capable, Safety
Element out of Context (SEooC)
AEC-Q100 Grade 0 qualified
Independent output interfaces: SPI, ABI, UVW,
PWM
Applications
The AS5x47U has been designed to support BLDC motor
communication for the most challenging and safety-critical
automotive applications (AEC-Q100 grade 0 automotive
qualified – ISO26262 assessment) such as electric power
steering (EPS), transmission (gearbox, actuator), brake
(actuator) and starter/alternator.
Page 2
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ams Datasheet
[v1-07] 2020-Sep-03


Part Number AS5147U
Description 14-Bit Dual-Die On-Axis Magnetic Rotary Position Sensor
Maker ams
PDF Download

AS5147U Datasheet PDF






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