A31316 datasheet(49/61 Pages) ALLEGRO

49 / 61 page

3D Magnetic Position Sensor IC

A31316

Allegro MicroSystems

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

UVCC (BIT: 8) RO

Indicates when the UVD error has occurred. This bit will NOT be

asserted if the flag is masked.

ESE (BIT: 7) RO

Indicates when the EEPROM single bit error has occurred. This

bit will NOT be asserted if the flag is masked.

POR (BIT: 6) RO

Indicates when a power-on reset has occurred. This bit will NOT

be asserted if the flag is masked.

SRR (BIT: 5) RO

Indicates when the signal radius is out of range. This bit will

NOT be asserted if the flag is masked.

SLF (BIT: 4) RO

Indicates when an error is detected in the signal path logic. This

bit will NOT be asserted if the flag is masked.

SAT (BIT: 3) RO

Indicates when saturation occurs within the signal path. This bit

will NOT be asserted if the flag is masked.

TSE (BIT: 2) RO

Indicates when the temperature sensor is either in error our out of

range. This bit will NOT be asserted if the flag is masked.

AOC (BIT: 1) RO

Indicates when the angle is outside of the clamped region. This

bit will NOT be asserted if the flag is masked.

ACF (BIT: 0) RO

Indicates when a failure has occurred on the internal analog

checks. This bit will NOT be asserted if the flag is masked.

Volatile 0xA7

TEMPERATURE_16B (BITS: 31:16) RO

Contains the digital readout of the temperature sensor. This value

is provided in 2’s complement. Conversion to degrees can be

done with the following equation:

Temperature [°C] = (temperature_16b) / 128 + 25°

ANGLE_16B (BITS: 15:0) RO

The calculated angle after all trimming and compensation. Con-

version to degrees can be done with the following equation:

Angle [Deg]=angle_16b × (360°)/216

Volatile 0xA8

CHAN_B_16B (BITS: 31:16) RO

Final output of channel B after customer trimmed compensation.

This value is directly input to the CORDIC calculation.

CHAN_A_16B (BITS: 15:0) RO

Final output of channel A after customer trimmed compensation.

This value is directly input to the CORDIC calculation.

Volatile 0xA9

CHAN_B_PRE_16B (BITS: 31:16) RO

Customer-trimmed output of channel B before the hysteresis

filter.

CHAN_A_PRE_16B (BITS: 15:0) RO

Customer-trimmed output of channel A before the hysteresis

filter.

Volatile 0xAA

RADIUS_SQ_17B (BITS: 16:0) RO

The squared radius as calculated internally. This value is used to

determine if the signal radius is out of range for the SSR flag.

A31316 Datasheet(PDF) 49 Page - Allegro MicroSystems

A31316 Datasheet(HTML) 49 Page - Allegro MicroSystems

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