AS5045-ASST datasheet(17/47 Pages) AMSCO

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ams Datasheet

Page 17

[v2-01] 2017-Jul-13

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AS5045 − Detailed Description

Z-Axis Range Indication (Push Button Feature,

Red/Yellow/Green Indicator)

The AS5045 provides several options of detecting movement

and distance of the magnet in the Z-direction. Signal indicators

MagINCn and MagDECn are available both as hardware pins

(pins 1 and 2) and as status bits in the serial data stream.

Additionally, an OTP programming option is available with bit

MagCompEn (see Figure 23) that enables additional features.

In the default state, the status bits MagINC, MagDec and pins

MagINCn, MagDECn have the following function.

Figure 15:

Magnetic Field Strength Variation Indicator

Status Bits

Hardware Pins

OTP: Mag CompEn = 0 (default)

MagINC

MagDEC

MagINCn

MagDECn

Description

Off

No distance change

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

Off

Distance increase; pull-function. This state is

dynamic and only active while the magnet is

moving away from the chip.

Off

Distance decrease; push- function. This state is

dynamic and only active while the magnet is

moving towards the chip.

Magnetic field is ~<45mT or >~75mT. It is still

possible to operate the AS5045 in this range, but

not recommended

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