AS5045B-ASST datasheet(7/33 Pages) AMSCO

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AS5045B

Datasheet - Electrical Character i s t ics

6.1 Magnetic Input Specification

TAMB = -40 to +125°C, VDD5V = 3.0 to 3.6V (3V operation) VDD5V = 4.5 to 5.5V (5V operation) unless otherwise noted. Also valid for version I.

Two-pole cylindrical diametrically magnetized source:

Output current

VDD5V: 4.5V

VDD5V: 3V

DC Characteristics CMOS Output: PWM

VOH

High level output voltage

VDD5V –

0.5

VOL

Low level output voltage

VSS

+0.4

Output current

VDD5V: 4.5V

VDD5V: 3V

DC Characteristics CMOS Output: A, B, Index

VOH

High level output voltage

VDD5V –

0.5

VOL

Low level output voltage

VSS

+0.4

Output current

VDD5V: 4.5V

VDD5V: 3V

DC Characteristics Tri-state CMOS Output: DO

VOH

High level output voltage

VDD5V –

0.5

VOL

Low level output voltage

VSS

+0.4

Output current

VDD5V: 4.5V

VDD5V: 3V

IOZ

Tri-state leakage current

µA

1. Either with 3.3V or 5V supply.

Table 4. Magnetic Input Specification

Symbol

Parameter

Condition

Min

Typ

Max

Unit

dmag

Diameter

Recommended magnet: Ø 6mm x 2.5mm for

cylindrical magnets

tmag

Thickness

2.5

Bpk

Magnetic input field amplitude

Required vertical component of the magnetic

field strength on the die’s surface, measured

along a concentric circle with a radius of

1.1mm

Boff

Magnetic offset

Constant magnetic stray field

± 10

fmag_abs

Input frequency

(rotational speed of magnet)

153 rpm @ 4096 positions/rev

2.54

Disp

Displacement radius

Max. offset between defined device center

and magnet axis

(see Figure 17)

0.25

Table 3. Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

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