AS5134_04 datasheet(6/33 Pages) AMSCO

Part #	AS5134

Description	360 Step Programmable High Speed Magnetic Rotary Encoder

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Manufacturer	AMSCO [ams AG]

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Revision 2.3

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AS5134

Datasheet - Electrical Character i s t ics

6 Electrical Characteristics

TAMB = -40 to 140ºC, VDD5V = 4.5-5.5V, all voltages referenced to VSS, unless otherwise noted.

Table 3. Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VDD

Positive Supply Voltage

4.5

+5.5

V

IDD

Operating Current

No load on outputs. Supply current can be

reduced by using stronger magnets.

22

mA

Ioff

Power down current

Low Power Mode

70

120

µA

System Parameters

N

Resolution

8.5

Bit

1Deg

TPwrUp

Power Up Time

Startup from zero

4100

µs

Startup from Low Power mode

500

ts

Tracking rate

Step rate of tracking ADC;

1 step = 1º

5.2

µs/step

INLcm

Accuracy

Centered Magnet

-2

2

Deg

INLdm

Within horizontal displacement radius

-3

3

Deg

tdelay

Propagation delay

Internal signal processing time

22

µs

TN

Transition noise

Peak-Peak

1.41

Deg

Magnet Specifications

Bi

Magnetic Input Range

Required vertical component of the

magnetic field strength on the chip

surface, measured along a concentric

circle with a radius of 1 mm

20

80

mT

Vi

Magnet rotation speed

to maintain locked state

76875

rpm

PWM Output

tPWM

PWM period

600

750

900

µs

fPWM

PWM frequency

1 / PWM period

1.11

1.33

1.66

kHz

Programming Parameters

VPROG

Programming Voltage

Static voltage at pin Prog

8.0

8.5

V

TambPROG

Programming ambient temperature

During programming

0

85

ºC

tPROG

Programming time

Timing is internally generated

2

4

µs

VR,prog

Analog readback voltage

During analog readback mode at pin Prog

0.5

V

VR,unprog

23.5

Hall Element Sensitivity Options

sens

Hall Element sensitivity setting

sens = 00 (default)

1.60

1.65

1.75

X

sens = 01

1.79

1.88

1.98

sens = 10

2.01

2.11

2.22

sens = 11

2.23

2.35

2.47

DC Characteristics of Digital Inputs and Outputs

CMOS Inputs: DDCLK, CS, DIO, C2

VIH

High level input voltage

0.7*VDD

VDD

V

VIL

Low level input voltage

00.3*VDD

V

ILEAK

Input leakage current

1µA

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