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AS5130

Datasheet - Application In form atio n

8.2 Application Example II: Low-Power Encoder

Via SSI, the AS5130 will be able to toggle between active mode and low power mode. In active mode, the current consumption is ~15mA and in

low power mode 2mA. The fastest possible startup time from low power mode is 150µs. The AS5130 can be periodically switched between

active and low power mode, the average power consumption depends on the duty cycle. In order to read out the correct data, the active mode

time must be larger than 150µs.

Figure 23. Low Power Encoder

(EQ 8)

Example: sampling period = one measurement every 10ms.

= 2.195mA

(EQ 9)

micro

controller

AS5130

100n

+5V

VDD

CS

DIO

AS5130

S

N

on/off

CLK

I

active

∗t

on

I

powerdown

∗t

off

+

t

on

t

off

+

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15mA∗150

μs 2mA∗985ms

,

+

150

μs 985ms

,

+

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