AS5134-ZSST austriamicrosystems, AS5134-ZSST Datasheet - Page 16

• Manufacturer Part Number: AS5134-ZSST
• Description: IC ENCODER PROG 20-SSOP
• Manufacturer: austriamicrosystems
• Type: Linear, Rotary Encoder - Programmabler

Specifications of AS5134-ZSST

• Sensing Range: 20mT ~ 80mT
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 15mA
• Output Type: Digital, PWM
• Features: Programmable
• Operating Temperature: -40°C ~ 140°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output (max): -
• Other names: AS5134-ZSSTTR

AS5134
Data Sheet - D e t a i l e d D e s c r i p t i o n
7.9 Brushless DC Motor Commutation Mode
The BLDC signals will be used to control the electrical angle information – according to the amount of pole pairs and the actual mechanical angle
position. Refer
Figure 11. Commutation Mode
Table 8. Programming Options for the Commutation Signals U/V/W
7.10 Daisy Chain Mode
The angle information from the device and the setup for the device is handled over the digital interface. A special port (Dx) can be used to
implement a daisy chain mode. Depending on the configuration, it is possible to implement a two wire or a three wire mode. In the three wire
mode, each communication starts with the rising edge of the chip select signal. The Port Dx is used to transfer the chip select information from
one device to the next. Refer to
reset if there is no clock source available for a certain time. The synchronization between the internal free running analog clock oscillator and the
external used digital clock source for the digital interface is done in a way that the digital clock frequency can vary in a wide range.
Remark: Reset for the digital interface:
3 wire mode → via chip select
2 wire mode → via timeout
www.austriamicrosystems.com/AS5134
chip select
DCLK
0
0
0
0
1
1
1
α
W
U
V
electrical
Port
Figure 11
pole pair : 2
0
0
uvw (11:9)
:= α
mechanical
for an example of n_pole_pairs:=2. For the programming, refer to
0
0
1
1
0
0
1
60
30
Figure 12
*n
pole_pairs
120
60
Symbol
0
1
0
1
0
1
1
and
DCLK
CS
Figure
180
90
13. In the two wire interface mode, a timeout logic ensures that the digital interface will be
Indicates the start of a new access cycle to the device
CS = LO → reset of the digital interface.
Clock source for the communication over the digital interface. The maximum and
minimum frequency depends on the mode.
240
120
BLDC Pole Pairs : 1 → electrical angle of 60º := mechanical angle: 60º
BLDC Pole Pairs : 2 → electrical angle of 60º := mechanical angle: 30º
BLDC Pole Pairs : 3 → electrical angle of 60º := mechanical angle: 20º
BLDC Pole Pairs : 4 → electrical angle of 60º := mechanical angle: 15º
BLDC Pole Pairs : 5 → electrical angle of 60º := mechanical angle: 12º
BLDC Pole Pairs : 6 → electrical angle of 60º := mechanical angle: 10º
Revision 1.13
300
150
180
0
off → LO pad U,V,W, PWM
Serial Synchronous Interface (SSI) on page
Function
210
60
Function
120
240
180
270
angle electrical
angle mechanical
18.
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