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PDF AS5147 Data sheet ( Hoja de datos )
| Número de pieza | AS5147 | |
| Descripción | 14-Bit On-Axis Magnetic Rotary Position Sensor | |
| Fabricantes | ams | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS5147 (archivo pdf) en la parte inferior de esta página. Total 35 Páginas | ||
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AS5147
14-Bit On-Axis Magnetic Rotary
Position Sensor with 11-bit Binary
Incremental Pulse Count
General Description
The AS5147 is a high-resolution rotary position sensor for fast
absolute angle measurement over a full 360-degree range. This
new position sensor is equipped with a revolutionary
integrated dynamic angle error compensation (DAEC™) with
almost 0 latency.
The robust design of the device 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 AS5147 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 2048 steps / 512 pulses per
revolution. The resolution of the ABI signal is programmable to
1024 steps / 256 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 AS5147 supports embedded self-diagnostics including
magnetic field strength too high, magnetic field strength too
low or lost magnet, and other related diagnostic features.
The product is defined as SEooC (Safety Element out of Context)
according ISO26262 including FMEDA, safety manual and third
party qualification.
The AS5147 is available as a single die in a compact 14-pin
TSSOP package.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value of Using the AS5147
Key Benefits & Features
The benefits and features of this device are listed below:
Benefits
Easy to use – saving costs on DSP
Good resolution for motor & position control
Versatile choice of the interface
Features
DAEC™ Dynamic angle error compensation
14-bit core resolution
Independent output interfaces: SPI, ABI, UVW, PWM
ams Datasheet: 2014-May27 [v1-02]
AS5147 – 1
1 page  
Electrical Characteristics
Electrical Characteristics
Figure 6:
Electrical Characteristics
All limits are guaranteed. The parameters with min and max
values are guaranteed with production tests or SQC (Statistical
Quality Control) methods.
Symbol
Parameter
Conditions
Min Typ Max Units
VDD Positive supply voltage 5.0V operation mode 4.5 5.0 5.5
3.3V operation mode;
VDD3V3 Positive supply voltage only from -40 to
3.0 3.3 3.6
125°C
V
V
3.3V operation mode;
VDD3V3_150
Positive supply voltage
only from -40 to
150°C (3V150°C Bit
3.2 3.4 3.6
has to be set)
V
VDD_Burn
Positive supply voltage
Supply voltage
required for
programming in 3.3V
operation
3.3
3.5 V
VREG Regulated Voltage
Voltage at VDD3V3
pin if VDD ≠ VDD3V3
3.2
3.4
3.6
V
VporON
Internal POR-on level
At power-on (VDD
rising from 0 to 5.0V)
2.47
2.83 V
VporOFF
Internal POR-off level
At power-off (VDD
falling from 5.0 to 0V)
2.24
2.56 V
Vporh
Internal POR hysteresis
170 mV
IDD Supply current
15 mA
VIH
High-level input
voltage
VIL Low-level input voltage
0.7 × VDD
0.3 ×
VDD
V
V
VOH
High-level output
voltage
VDD - 0.5
VOL
Low-level output
voltage
VSS + 0.4
V
I_Out
Current on digital
output
4 mA
ams Datasheet: 2014-May27 [v1-02]
AS5147 – 5
5 Page 
Detailed Description
Figure 13:
SPI Timing
Parameter
Description
tL
tclk
tclkL
tclkH
tH
tCSn
tMOSI
tMISO
tOZ
Time between CSn falling edge and CLK rising edge
Serial clock period
Low period of serial clock
High period of serial clock
Time between last falling edge of CLK and rising
edge of CSn
High time of CSn between two transmissions
Data input valid to falling clock edge
CLK edge to data output valid
Release bus time after CS rising edge.
Min
350
100
50
50
tclk/2
350
20
Max
20
10
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure 14:
SPI Command Frame
SPI Transaction
An SPI transaction consists of a 16-bit command frame followed
by a 16-bit data frame. Figure 14 shows the structure of the
command frame.
Bit Name
Description
15
PARC
Parity bit (even) calculated on the command frame
14
R/W
0: Write
1: Read
13:0
ADDR
Address to read or write
ams Datasheet: 2014-May27 [v1-02]
AS5147 – 11
11 Page | ||
| Páginas | Total 35 Páginas | |
| PDF Descargar | [ Datasheet AS5147.PDF ] | |
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