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ams Datasheet

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[v2-01] 2017-Jul-13

AS5045 − Detailed Description

When bit MagCompEn is programmed in the OTP, the function

of status bits MagINC, MagDec and pins MagINCn, MagDECn is

changed to the following function.

Figure 16:

Magnetic Field Strength Red-Yellow-Green Indicator (OTP Option)

Note(s):

1. Pin 1 (MagINCn) and pin 2 (MagDECn) are active low via open drain output and require an external pull-up resistor. If the magnetic

field is in range, both outputs are turned off.

The two pins may also be combined with a single pull-up

resistor. In this case, the signal is high when the magnetic field

is in range. It is low in all other cases (see Figure 15 and

Figure 16).

Status Bits

Hardware Pins

OTP: Mag CompEn = 1

(Red-Yellow-Green Programming Option)

Mag

INC

Mag

DEC

LIN

Mag

INCn

Mag

DECn

Description

00

0

Off

Off

No distance change

Magnetic input field OK (GREEN range, ~45mT to 75mT)

11

0

On

Off

YELLOW range: magnetic field is ~ 25mT to 45mT or

~75mT to 135mT. The AS5045 may still be operated in

this range, but with slightly reduced accuracy.

11

1

On

On

RED range: magnetic field is ~<25mT or >~135mT. It is

still possible to operate the AS5045 in the red range,

but not recommended.

All other combinations

n/a

n/a

Not available