high speed, high resolutionrotary position sensoras5147p
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Confidential © ams AG 2015
High SpeedHigh ResolutionRotary Position SensorAS5147P
Confidential © ams AG 2015Page 2
Product segment matrixMagnetic Position Sensors
Product
Click on the part # to get the datasheet
Position measurement Motor Control
Linear Rotaryon-axis
Rotaryoff-axis
Rotaryon-axis
Rotaryoff-axis
incr. abs. incr. abs. incr. abs. incr. abs. incr. abs.
AS5304 | AS5306AS5311 | NSE5310AS5510 | AS5013
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AS5040 | AS5045BAS5045 | AS5048AS5050A | AS5055AAS5047D | AS5047PAS5600AS5601
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AS5132 | AS5134AS5115 | AS5215AS5147 | AS5247AS5147PAS5161 | AS5162AS5261 | AS5262
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product portfolio new products − not applicable/available
Lin
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ry
Confidential © ams AG 2015Page 3
Internal Comparison / ImprovementsAS5147P
AS5147 AS5147P
Core Resolution [bit] 14 14
Maximum speed [rpm] 14.500 28.000
Encoder resolution [bit / deg] 11 / 0.18 12/ 0.09
Encoder pulses max. 512 (bin) max. 1024 (bin)
INL [deg] +-1 +-1
Noise [deg rms] 0.06 0.06
System propagation delay [us]Output readout rate at SPI 1.9* 1.9*
DAE @1.7/14.5k/28k rpm 0.02*/0.17* 0.02*/0.17*/0.35*
Output interfaces SPI, PWMABI, UVW
SPI, PWMABI, UVW
ISO26262 conform No SEooC according ISO26262
* DAEC™ … Dynamic Angle Error Compensation
Product Overview / Key FeaturesAS5147P
Benefits• Easy to use – Low latency & High refresh Rate• Lower system costs (no shielding)• High resolution for motor & position control• Simple replacement – reduce system cost• Fast high resolution position feedback• Provides absolute & incremental angle measurements• Supports safety challenging applications
Key features• DAEC™ Dynamic Angle Error Compensation• Immune to external stray magnetic fields• 14-bit core resolution • Encoder output: 1000 / 1024 pulses • Maximum speed up to 28.000 rpm• SPI, PWM, UVW and ABI Interfaces• SEooC according ISO26262• AEC-Q100 qualified
Applications• Electric Power Steering (EPS)• Gearbox and Brake Actuator• Starter & Alternator and Pump Motor • BLDC/PMSM motor commutation • Rotary position sensors
Confidential © ams AG 2015Page 5
AS5147P - (“SEooC”) according ISO26262Safety element out of context
ISO26262 SEooC flow:
Product developed with assumed safety goal / ASIL level
- Safety Analysis of the architecture- Sensor development in adherence to ISO26262 - User Guide: Safety Manual to achieve ASIL- Development process evidence
- PPAP- Safety Plan- Certifications
- Certification by independent certification company- Safety support
- Customer refined FMEDA - FIT Rate- Safety Manual- Pin-FMEA Document- Application Notes- Support concept phase at customer- Support integration at customer
Certified by independent ISO 26262 certification company
SEooC according ISO 26262 to support ASIL Level X
FMEDAFIT Calculation
SafetyManual
Fully qualified sensorAEC Q-100 Grade0
Sensor developed with Safety Goals
Confidential © ams AG 2015Page 6
DAEC™ - A Revolutionary solutionAS5147P - Integrated Dynamic Angle Error Compensation™(DAEC™)– patent published
Dynamic Angle Error
Hardware Compensation integrated!No Software needed!
External HW + SW compensation needed
Mag
netic
Pos
ition
Sen
sor
Sys
tem
MPS … Magnetic Position Sensor
Confidential © ams AG 2015Page 7
DAEC Dynamic Angle Error CompensationAS5147P benefits
No DAEC: Error increases with rpm!
DAEC reduces the error to almost zero!
Low Latency High Output refresh rate
No DAEC: slow refresh rate - additional error
DAEC: Correct angle at correct time!
Competition
AS5147P
Control loop
Error
High output refresh rate !
Confidential © ams AG 2015Page 8
Stray field immunity ams patented differential principle
H2
H4 Hall
0
[V] Volts
12
3
4
Vdiff
Vdi
ff 1
Vdi
ff 2
external magnetic stray field
Vdiff 1 = Vdiff 2
Note: … considering homogeneous external magnetic stray field
Confidential © ams AG 2015Page 9
AS5147P Application Example for EPSTorque measurement, hand wheel, and motor position and control
AS5147P - Motor position sensor (On-Axis) Fast digital Interfaces; SPI, ABI, UVW, and PWM Accuracy ≤ 1.0o; with 14 bits resolution Max RPM up to 28K Fast refresh rates/low latency; 1.9 µs
Torque and hand wheel Sensor unit [TAS]
EPS Motor
Motor position sensor IC controls commutation of
brushless DC motor.
Torque sensing requirements [TOS]
Hand wheel position requirements [SAS] (On-Axis or Off-Axis)
Confidential © ams AG 2015Page 10
• Commutation feedback for brushless DC motor
• Provides fast and accurate measurements
- At startup: provides phase coil information via UVW signals- At speed: provides position measurement via SPI or ABI signals
• Eliminates the need for discrete hall sensors in stator
AS5147P Enables Efficient Motor CommutationBrushless DC (BLDC) Motor - preferred choice for EPS
Confidential © ams AG 2015Page 11
AS5147P Technical AdvantagesAdvanced magnetic position sensors in Electronic Power Steering (EPS) applications
Superior durability through contactless “system-on-chip” solution No wear High reliability Insensitive to humidity, dust, dirt, etc.
Lower Systems Cost Small surface mount Wide mechanical tolerances reduce manufacturing costs End-of-Line Sensor Programming for lower production costs
High Accuracy Rotary position error accuracy of < ±1.0o
Confidential © ams AG 2015Page 12
AS5147P Technical Advantages (Cont.)Advanced magnetic position sensors in Electronic Power Steering (EPS) applications
DAEC Low latency High refresh rate
Increased Functional safety via on-sensor diagnostics Enabler for safety critical applications (ISO26262 safety standard)
Confidential © ams AG 2015Page 13
Competitive Product PositioningAS5147P
Angular Position Sensor
AS5147P
Competitive ICs
Provides ultra-low latency, very fast output refresh rates, stray field immunity, and high accuracy performance, while reducing system costs
and enabling improved ISO 26262 system safety compliance.
Provides ultra-low latency, fast output refresh rates, stray field immunity, and high accuracy performance, while
enabling reduced system costs.
AS5147P vs Competitive ICs AS5147P vs Discrete Sensors
Angular Position Sensor
AS5147P
Discrete Sensors
Confidential © ams AG 2015Page 14
Competitive Positioning against Competitive IC SolutionsAS5147P
The AS5147P rotary position sensor IC provides ultra-low latency, superfast output refresh rates and high accuracy performance at reduced system costs.
Angular Position Sensor
AS5147P
Competitive ICs
Unlike competitive rotary position sensors ICs, the AS5417P. Is immune to stray magnetic fields for improved performance and lower
system costs (no shielding required) Has ultra-low intrinsic propagation delay and noise for better accuracy
performance Provides an extremely fast output refresh rate of just 1.9usecs Supports very high speed rotational shaft applications Provides sub +/-1.0o angle measurement accuracy over temperature Requires a smaller target magnet for lower system costs Is packaged in a low profile (1.0mm nom) height TSSOP-14. Provides robust customer configurability, including zero-position location,
for end-of-line programming
Confidential © ams AG 2015Page 15
Competitive Positioning Against Discrete SolutionsAS5147P
Provides ultra-low latency, stray field immunity, and high accuracy performance, while reducing system costs and enabling improved ISO 26262 system safety compliance.
Unlike discrete motor commutation solutions, the AS5147P. Provides high speed motor position information and motor commutation
feedback in a single device. Enables higher levels of ISO 26262 system safety compliance. Has lower system costs with elimination of discrete Hall switches Is immune to stray magnetic fields for improved performance and lower
system costs (no shielding required) Is singularly packaged in a low profile (1.0mm nom) height TSSOP-14.
Angular Position Sensor
AS5147P
Discrete Solutions
Confidential © ams AG 2015Page 16
• AS5147P-TS_EK_ABSAP#: 990600830
• AS5147P-TS-EK-MBSAP# 990600xxx
• USB I&P BOXSAP# 990600795
• SD4Y-EK-XX-PBSAP# 990600763
Adapter Board AS5147P Motor Board USB I&P Box SD4Y Programmer
Support ToolsAS5147P
Confidential © ams AG 2015Page 17
DAEC™ Stray field immunity Excellent price-performance ratio Immunity to harsh environments SEooC according to ISO26262 Ease of Use
Videos:
AS5147P Value PropositionSummary
Confidential © ams AG 2015
Thank you!
Please visit our website www.ams.com/Magnetic-Position-Sensors