as5045 austriamicrosystems, as5045 Datasheet - Page 17

• Manufacturer Part Number: as5045
• Description: 12-bit Programmable Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
14 Electrical Characteristics
14.1
All parameters are according to AS5040 datasheet except for the parameters shown below:
14.2
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 “Operating Conditions” is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Revision 1.2, 03-Oct-06
Building Block
Resolution
Data length
incremental encoder
Pins 1 and 2
Pin 6
Pin 12
sampling frequency
Propagation delay
Transition noise
(rms; 1sigma)
OTP programming
options
Parameter
DC supply voltage at pin VDD5V
DC supply voltage at pin VDD3V3
Input pin voltage
Input current (latchup immunity)
Electrostatic discharge
Storage temperature
Body temperature (Lead-free
package)
Humidity non-condensing
AS5045 Differences to AS5040
Absolute Maximum Ratings (non operating)
AS5045
12bits, 0.088°/step.
read: 18bits
(12bits data + 6 bits status)
OTP write: 18 bits
(12bits zero position + 6 bits mode selection)
Not used
Pin 3: not used
Pin 4:not used
MagINCn, MagDECn: same feature as AS5040,
additional OTP option for red-yellow-green
magnetic range
MODE pin, switch between fast and slow mode
PWM output: frequency selectable by OTP:
1µs / step, 4096 steps per revolution, f=244Hz
2µs/ step, 4096 steps per revolution, f=122Hz
selectable by MODE input pin:
2.5kHz, 10kHz
384µs (slow mode)
96µs (fast mode)
0.03 degrees max. (slow mode)
0.06 degrees max. (fast mode)
zero position, rotational direction, PWM disable,
2 Magnetic Field indicator modes, 2 PWM
frequencies
Symbol
VDD3V3
VDD5V
ESD
T
T
V
I
Body
H
scr
strg
in
www.austriamicrosystems.com
-100
Min
-0.3
-0.3
-55
5
VDD5V +0.3
Max
100
125
260
± 2
85
7
5
Unit
mA
kV
°C
°C
%
V
V
V
AS5040
10bits, 0.35°/step
read: 16bits
(10bits data + 6 bits status)
OTP write: 16 bits
(10bits zero position + 6 bits mode
selection)
quadrature, step/direction and BLDC
motor commutation modes
Pin 3:incremental output A_LSB_U
Pin 4:incremental output B_DIR_V
MagINCn, MagDECn indicate in-range
or out-of-range magnetic field plus
movement of magnet in z-axis
Pin 6:Index output
PWM output:
1µs / step, 1024 steps per revolution,
976Hz PWM frequency
fixed at 10kHz @10bit resolution
48µs
0.12 degrees
zero position, rotational direction,
incremental modes, index bit width
Note
Norm: MIL 883 E method 3015
Min – 67°F ; Max +257°F
t=20 to 40s, Norm: IPC/JEDEC J-Std-020C
Lead finish 100% Sn “matte tin”
Except VDD3V3
Norm: JEDEC 78
Page 17 of 23