A31316 datasheet(57/61 Pages) ALLEGRO

57 / 61 page

3D Magnetic Position Sensor IC

A31316

Allegro MicroSystems

955 Perimeter Road

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

www.allegromicro.com

DIG_OUT_PUSH_LIM (BITS 24:22)

Selects the digital output push driver current limit. Approximate

current limits are provided below:

dig_out_push_lim

Current Limit (mA)

8.75

7.5

6.25

3.75

2.5

1.25

DIG_OUT_PUSH_LIM_SEL (BIT 21)

Disables the digital push driver current limit.

• If dig_out_push_lim_dis = ‘0’ current limit is set by dig_out_

push_lim register.

• If dig_out_push_lim_dis = ‘1’ current limit is ~20 mA

SAT_COR_MASK (BIT 20)

Disables the channel level saturation sub-flag when set. This

mask only effects the error flag reporting ability and does not

change the effects of saturation on the signal path data.

SAT_FILT_MASK (BIT 19)

Disables the filter level saturation sub-flag when set. This mask

only effects the error flag reporting ability and does not change

the effects of saturation on the signal path data.

SAT_COR_MASK (BIT 18)

Disables the saturation correction error flag when set. This mask

only affects the error flag reporting ability. It does not change the

effect of the saturation on the signal path data.

SAT_LIN_MASK (BIT 17)

Disables the saturation linearization error flag when set. This

mask only affects the error flag reporting ability. It does not

change the effect of the saturation on the signal path data.

ACF_FAULT_FILT (BITS 16:15)

Filters the ACF fault condition, the error condition must be present

for the number of cycles shown below before a fault flag is tripped.

acf_fault_filt

Cycles

FAULT_FILT (BITS 14:12)

Filters the SAT, AOC, and SRR flags; each error condition must

be present for the number of cycles shown below before their

respective flag is tripped. Additionally, also sets the number of

temperature updates for which the temperature sensor must be in

error before a TSE flag is set

fault_filt

SAT, AOC, SSR

[Cycles]

TSE

[Temperature Updates]

128

OVD_MASK (BIT 11)

Disables the overvoltage detection error flag when set.

UVD_MASK (BIT 10)

Disables the undervoltage detection error flag when set.

SPE_MASK (BIT 9)

Disables the signal path error flag when set.

ESE_MASK (BIT 8)

Disables the EEPROM single bit error flag when set.

POR_MASK (BIT 7)

Disables the power-on reset error flag when set.

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