AS5011 데이터 시트보기 (PDF) - austriamicrosystems AG

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AS5011

Low Power Integrated Hall IC for Human Interface Applications

austriamicrosystems AG 

AS5011

Data Sheet

6.4 Power modes

The AS5011 can operate in three different power modes, depending on the power consumption requirements of the

whole system.

Power Mode

[0x76] Register Description

Sleep phase

Power state between wakeups in Shutdown and Low Power modes

RC clock and analog part OFF

Digital part in static mode

Shutdown mode

1001_x00x

Default mode after power on

<50µA current consumption

LP_Pulsed = 1 Wake up every 80ms from Sleep phase

LP_Active = 0 Hall elements in reduced power during wake up

LP_Continue = RC clock ON

0

Interrupt LOW on INTn if the magnet is away from the center above the

INT_wup_en = Xp Xn Yp Yn threshold values (1)

1

Low Power mode

110x_100x

<200µA current consumption

Wake up every 20ms from Sleep phase

LP_Pulsed = 1 Hall elements in high power during wake up for better accuracy

LP_Active = 1 RC clock ON

LP_Continue = Interrupt LOW on INTn when XY coordinates are ready to be read (1)

0

INT_act_en = 1

Full Power mode

010x_y00x

<8mA current consumption

Continuous read

LP_Pulsed = 0 Hall elements in high power permanently

LP_Active = 1 RC clock ON

LP_Continue = Interrupt LOW on INTn when XY coordinates are ready to be read (1)

0

If INT_act_en = 1, after reading the XY coordinate, the next sample is

INT_act_en = y stored and won’t be updated until the next read of XY with interrupt

release.

If INT_act_int_en = 0, the last converted XY coordinate is read in real

time.

(1) The interrupt will be released to HIGH by reading the X_res_int or Y_res_int registers, or by switching the

device into a different power mode.

Table 2: Overview of typical power modes

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