AS5403D-HTST datasheet(23/66 Pages) AMSCO

Part #	AS5403D-HTST

Description	3D Hall Position Sensor for Linear and Off-Axis Applications

PDF	66 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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23 / 66 page

ams Datasheet

Page 23

[v1-06] 2015-Aug-28

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AS5403A/D/E − Output Drivers

PWM Output

When the PWM mode is selected the measured position is

proportional to the duty cycle. A range of 10% to 90% of the

PWM period is used to carry the information and the remaining

ranges are used as a fail signal (a 5% PWM means Algorithm

Error, no change over a whole period means a Hard Error). The

80% of the PWM period contains the position information.

Depending on the AS5403 version (A/D/E) and mode selection

the PWM frequency can change between 1.0 kHz and 0.125 kHz.

The PWM resolution can also change between 10 bit (1024

positions) for 1.0 kHz and 12 bit (4096 positions) for 0.125 kHz.

The behavior of PWM and /PWM is shown in the following

figures.

Figure 24:

PWM Output

100

DC (%)

1023 /

4095

511/

2047

Algorithm

Error

Hard

Error

PWM Behavior

AS5403D-HTST Datasheet(PDF) 23 Page - ams AG