AS5046-ASST austriamicrosystems, AS5046-ASST Datasheet - Page 21

• Manufacturer Part Number: AS5046-ASST
• Description: IC ENCODER PROG 12-BIT 16-SSOP
• Manufacturer: austriamicrosystems
• Type: Linear, Rotary Encoder - Programmabler

Specifications of AS5046-ASST

• Sensing Range: 45mT ~ 75mT
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Current - Supply: 21mA
• Current - Output (max): 4mA
• Output Type: Analog, Ratiometric
• Features: Programmable
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AS5046-ASSTTR

AS5046
Data Sheet
Table 19 Magnitude and AGC Values
11.7 Z-Axis Range Indication (Push Button Feature, Red/Yellow/Green Indicator
The AS5046 provides several options of detecting movement and distance of the magnet in the vertical (Z-) direction.
Signal indicators MagINC, MagDEC and LIN are available as status bits in the serial data stream, while MagRngn is
an open-drain output that indicates an out-of range status (on in YELLOW or RED range). Additionally, the analog
output provides a safety feature in the form that it will be turned off when the magnetic field is too strong or too weak
(RED range).
The serial data is always available, the red/yellow/green status is indicated by the status bits as shown below:
Table 20 Magnetic Field Strength Indicators
www.austriamicrosystems.com
Parameter
Input Field tolerance level
red2yellow B1 - B2
Input Field tolerance level
yellow2green B3 - B4
Input Field tolerance level
green2yellow B5 - B6
Input Field tolerance level
yellow2red B7 – B8
Input Field tolerance level
red2yellow B1 - B2
Input Field tolerance level
yellow2green B3 - B4
Input Field tolerance level
green2yellow B5 - B6
Input Field tolerance level
yellow2red B7 – B8
Status Bits
Mag
INC
0
0
1
1
1
Mag
DEC
0
1
0
1
1
LIN
0
0
0
0
1
Hardware Pins
Mag
Rngn
Off
Off
Off
On
On
enabled
enabled
Analog
output
enabled
enabled
disabled
Symbol
B
B
B
B
No distance change
Magnetic Input Field OK (GREEN range, ~45…75mT)
Distance increase, GREEN range; Pull-function. This state is dynamic and only
active while the magnet is moving away from the chip.
Distance decrease, GREEN range; Push- function. This state is dynamic and only
active while the magnet is moving towards the chip.
YELLOW Range: Magnetic field is ~ 25…45mT or ~75…135mT. The AS5046
may still be operated in this range, but with slightly reduced accuracy.
RED Range: Magnetic field is ~<25mT or >~135mT. The analog output will be
turned off in this range by default. It can be enabled permanently by OTP
programming (see 14.1.2).
It is still possible to use the absolute serial interface in the red range, but not
recommended.
B
B
B
B
y2g25
g2y25
r2y25
y2r25
y2g
g2y
r2y
y2r
Revision 1.12
16.77
33.01
90.45
15.64
30.80
55.96
84.39
60.0
Min
17.95
35.35
64.24
96.87
17.95
35.35
64.24
96.87
Typ
Description
104.28
120.69
19.33
38.06
69.15
22.37
44.05
80.04
Max
Unit
mT
mT
mT
mT
mT
mT
mT
mT
Note
At 25°C ambient
temperature
Over the full
specified
temperature range
21 – 42