AS5145H-HSST austriamicrosystems, AS5145H-HSST Datasheet - Page 5

• Manufacturer Part Number: AS5145H-HSST
• Description: IC ENCODER ROTARY 16-SSOP
• Manufacturer: austriamicrosystems
• Type: Linear, Rotary Encoder - Programmabler

Specifications of AS5145H-HSST

• 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: Quadrature with Index (Incremental)
• Features: Programmable
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 16-SSOP (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AS5145
Data Sheet - P i n A s s i g n m e n t s
Table 1. Pin Descriptions
Pin 1 and 2 are the magnetic field change indicators, MagINCn and MagDECn (magnetic field strength increase or decrease through variation of
the distance between the magnet and the device). These outputs can be used to detect the valid magnetic field range. Furthermore those
indicators can also be used for contact-less push-button functionality.
Pin 3 and 4 are multi function pins for sync mode, sin/cosine mode and incremental mode.
Pin 6 Mode_Index allows switching between filtered (slow) and unfiltered (fast mode). In incremental mode, the pin changes from input to output
and provides the index pulse information. A change of the Mode during operation is not allowed. The setup must be constant during power up
and during operation.
Pins 7, 15, and 16 are supply pins, pins 5, 13, and 14 are for internal use and must not be connected.
Pin 8 (PDIO) is used to program the zero-position into the
device in Daisy Chain configuration,
Pin 11 Chip Select (CSn; active low) selects a device within a network of AS5145 encoders and initiates serial data transfer. A logic high at CSn
puts the data output pin (DO) to tri-state and terminates serial data transfer. This pin is also used for alignment mode
page 23)
Pin 12 allows a single wire output of the 12-bit absolute position value. The value is encoded into a pulse width modulated signal with 1µs pulse
width per step (1µs to 4096µs over a full turn). By using an external low pass filter, the digital PWM signal is converted into an analog voltage,
e.g. for making a direct replacement of potentiometers possible.
www.austriamicrosystems.com/AS5145
Pin Number
and programming mode
14
15
16
Pin Name
V
V
(see Programming the AS5145 on page
DD
DD
NC
(see page
3V3
5V
14).
Must be left unconnected
3V-Regulator Output, internally regulated from V
voltage. Do not load externally.
Positive Supply Voltage, 3.0 to 5.5 V
OTP(see page
Revision 1.11
19). This pin is also used as digital input to shift serial data through the
19).
Description
DD
5V. Connect to V
(see Alignment Mode on
DD
5V for 3V supply
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