AS5311

Data Sheet

www.austriamicrosystems.com

Revision 1.01

6 - 23

Table 1

Pin Description

Pin

Symbol

Type

Description

1

NC

-

Must be left unconnected

2

MagINCn

DO_OD

Magnet Field Magnitude INCrease; active low, indicates a distance

reduction between the magnet and the device surface.

3

MagDECn

DO_OD

Magnet Field Magnitude DECrease; active low, indicates a distance

increase between the device and the magnet.

4

A

DO

Incremental output A

5

B

DO

Incremental output B

6

NC

-

Must be left unconnected

7

Index

DO

Incremental output Index.

8

VSS

S

Negative Supply Voltage (GND)

9

Prog

DI_PD

OTP Programming Input for factory programming. Connect to VSS

10

NC

-

Must be left unconnected

11

NC

-

Must be left unconnected

12

DO

DO_T

D

ata Output of Synchronous Serial Interface

13

CLK

DI, ST

Cl

ock Input of Synchronous Serial Interface; Schmitt-Trigger input

14

CSn

DI_PU, ST

C

hip Select, active low; Schmitt-Trigger input, internal pull-up resistor

(~50k

Ω). Must be low to enable incremental outputs

15

PWM

DO

P

ulse Width Modulation of approx. 244Hz; 1µs/step

16

NC

-

Must be left unconnected

17

NC

-

Must be left unconnected

18

VDD3V3

S

3V-Regulator output; internally regulated from VDD5V. Connect to

VDD5V for 3V supply voltage. Do not load externally.

19

VDD5V

S

Positive Supply Voltage, 3.0 to 5.5 V

20

NC

-

Must be left unconnected

DO_OD

digital output open drain

S

supply pin

DO

digital output

DI

digital input

DI_PD

digital input pull-down

DO_T

digital output /tri-state

DI_PU

digital input pull-up

ST

Schmitt-Trigger input

6

Electrical Characteristics

6.1

Absolute Maximum Ratings

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.

Table

2

Absolute Maximum Ratings

Parameter

Min

Max

Unit

Comments

DC supply voltage at pin VDD5V

-0.3

7

V

DC supply voltage at pin VDD3V3

5

V

Input pin voltage

-0.3

VDD5V +0.3

V

Except VDD3V3

Input current (latchup immunity)

-100

100

mA

Norm: JEDEC 78

Electrostatic discharge

± 2

kV

Norm: MIL 883 E method 3015

Storage temperature

-55

125

°C

Min – 67°F ; Max +257°F