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PDF AS5047P Data sheet ( Hoja de datos )
| Número de pieza | AS5047P | |
| Descripción | 14-bit On-Axis Magnetic Rotary Position Sensor | |
| Fabricantes | ams | |
| Logotipo |  |
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AS5047P
14-bit On-Axis Magnetic Rotary
Position Sensor with 12-Bit Decimal &
Binary Incremental Pulse Count for
28krpm high speed capability
General Description
Figure 1:
Added Value of using the AS5047P
The AS5047P is a high-resolution rotary position sensor for high
speed (up to 28krpm) angle measurement over a full 360 degree
range. This new position sensor is equipped with revolutionary
integrated dynamic angle error compensation (DAEC™) with
almost 0 latency and offers a robust design that suppresses the
influence of any homogenous external stray magnetic field.
A standard 4-wire SPI serial interface allows a host
microcontroller to read 14-bit absolute angle position data
from the AS5047P 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 4000 steps / 1000 pulses per
revolution in decimal mode and 4096 steps / 1024 pulses per
revolution in binary mode. The resolution of the ABI signal is
programmable and can be reduced to 100 steps per revolution,
or 25 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 AS5047P is available as a single die in a compact 14-pin
TSSOP package.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of AS5047P, 14-bit On-Axis Magnetic
Rotary Position Sensor with 12-Bit Decimal & Binary
Incremental Pulse Count for 28krpm high speed capability are
listed below:
Benefits
High speed application
Easy to use – saving costs on DSP
Good resolution for motor & position control
Features
Up to 28krpm
DAEC™ Dynamic angle error compensation
14-bit core resolution
ams Datasheet
[v1-00] 2014-Oct-31
Page 1
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1 page  
AS5047P − Absolute Maximum Ratings
Absolute Maximum Ratings
Figure 5:
Absolute Maximum Ratings
Stresses beyond those listed under
“Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only. Functional operation
of the device at these or any other conditions beyond those
indicated under “Electrical Characteristics” is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
Symbol
Parameter
Min Max Units
Note
VDD5 DC supply voltage at VDD pin -0.3
7.0
V
VDD3
DC supply voltage at VDD3V3
pin
-0.3
5.0
V
VSS DC supply voltage at GND pin -0.3
0.3
V
Vin Input pin voltage
VDD+0.3 V
Iscr
Input current
(latch-up immunity)
-100 100
mA Norm: AEC-Q100-004
ESD Electrostatic discharge
±2
kV Norm: AEC-Q100-002
Pt
Total power dissipation
(all supplies and outputs)
150 mW
Ta5V0 Ambient temperature 5V0
-40 125
°C
In the 5.0V power supply mode
only
Ta3V3 Ambient temperature 3V3
-40 125
°C
In the 3.3V power supply mode if
NOISESET = 0
TaProg Programming Temperature
5
45
°C
Programming @ Room
temperature (25°C ± 20°C)
Tstrg Storage temperature
-55 150
Tbody Package body temperature
260
Humidity non-condensing 5 85
°C
°C Norm: IPC/JEDEC J-STD-020
%
Moisture sensitivity level
3
Represents a maximum floor
lifetime of 168h
ams Datasheet
[v1-00] 2014-Oct-31
Page 5
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5 Page 
AS5047P − Detailed Description
Figure 11:
SPI Timing Diagram
SPI Interface (slave)
The SPI interface is used by a host microcontroller (master) to
read or write the volatile memory as well as to program the
non-volatile OTP registers. The AS5047P SPI only supports slave
operation mode. It communicates at clock rates up to 10 MHz.
The AS5047P SPI uses mode=1 (CPOL=0, CPHA=1) to exchange
data. As shown in Figure 11, a data transfer starts with the
falling edge of CSn (SCL is low). The AS5047P samples MOSI data
on the falling edge of SCL. SPI commands are executed at the
end of the frame (rising edge of CSn). The bit order is MSB first.
Data is protected by parity.
SPI Timing
The AS5047P SPI timing is shown in Figure 11.
CSn
(Input)
CLK
(Input)
MISO
(Output)
MOSI
(Input)
tL
tclk
tclkL
tclkH
tMISO
Data[15]
tMOSI
Data[15]
Data[14]
Data[14]
tCSn
tH
Data[0]
Data[0]
tOZ
tOZ
ams Datasheet
[v1-00] 2014-Oct-31
Page 11
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AS5047P.PDF ] | |
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