AS5046ASST datasheet(6/33 Pages) AMSCO

6 / 33 page

AS5046 Programmable 360° Magnetic Angle Encoder – Preliminary Data Sheet

Revision 1.1

www.austriamicrosystems.com

Page 6 of 33

5.4

Magnetic Input Specification

(operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation)

unless otherwise noted)

Two-pole cylindrical diametrically magnetised source:

Parameter

Symbol

Min

Typ

Max

Unit

Note

Diameter

dmag

Thickness

tmag

2.5

Recommended magnet: Ø 6mm x 2.5mm for cylindrical

magnets

Magnetic input field amplitude

Bpk

Required vertical component of the magnetic field strength on

the die’s surface, measured along a concentric circle with a

radius of 1.1mm

Magnetic offset

Boff

± 10

Constant magnetic stray field

Field non-linearity

Including offset gradient

fmag_abs

Absolute mode: 600 rpm @ readout of 1024 positions

(see table 6)

Input frequency

(rotational speed of magnet)

fmag_inc

166

Incremental mode: no missing pulses at rotational speeds of

up to 10,000 rpm (see table 6)

Displacement radius

Disp

0.25

Max. offset between defined device center and magnet axis

-0.12

NdFeB (Neodymium Iron Boron)

Recommended magnet material

and temperature drift

-0.035

%/K

SmCo (Samarium Cobalt)

5.5

Electrical System Specifications

(operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation)

unless otherwise noted)

Parameter

Symbol

Min

Typ

Max

Unit

Note

Resolution 1)

RES

bit

0.088 deg

Integral non-linearity (optimum) 1)

INLopt

± 0.5

deg

Maximum error with respect to the best line fit.

Verified at optimum magnet placement, Tamb =25 °C.

Integral non-linearity (optimum) 1)

INLtemp

± 0.9

deg

Maximum error with respect to the best line fit.

Verified at optimum magnet placement ,

Tamb = -40 to +125°C

Integral non-linearity 1)

INL

± 1.4

deg

Best line fit = (Errmax – Errmin) / 2

Over displacement tolerance with 6mm diameter magnet,

Tamb = -40 to +125°C

Differential non-linearity 1)

DNL

± 0.044

deg

12bit, no missing codes

0.06

1 sigma, fast mode (pin MODE = 1)

Transition noise 1)

0.03

Deg

RMS

1 sigma, slow mode (pin MODE=0 or open)

Power-on reset thresholds

On voltage; 300mV typ. hysteresis

Off voltage; 300mV typ. hysteresis

Von

Voff

1.37

1.08

2.2

1.9

2.9

2.6

DC supply voltage 3.3V (VDD3V3)

fast mode (pin MODE=1)

Power-up time,

Until offset compensation finished,

OCF = 1, Angular Data valid

tPwrUp

slow mode (pin MODE=0 or open)

fast mode (pin MODE=1)

System

propagation

delay

absolute output : delay of ADC and

DSP

tdelay

384

µs

slow mode (pin MODE=0 or open)

AS5046ASST 数据表(PDF) 6 Page - ams AG

AS5046ASST 数据表(HTML) 6 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

数据表下载