AK8778 Ver la hoja de datos (PDF) - Asahi Kasei Microdevices

Número de pieza

componentes Descripción

Fabricante

AK8778

Hall Effect IC for Pulse Encoders

Asahi Kasei Microdevices 

Electrical Characteristics

[AK8778]

Table 5. Electrical characteristics at VDD=4.0 to 24.0V, Ta= 40 to +115C

Parameter

Symbol Min. Typ. Max. Unit

Note

Current consumption

IDD

0.7

1.4

2.5

mA

Average

Output saturation voltage

VSAT

0.4

V

F, D pin, ISINK= 15mA

Output leak current

ILEAK

10

mA

F, D=VDD

Pulse drive period

TPD1

24.4

48.8

97.6

ms

Pulse drive duration time

TPD2

12.2

24.4

48.8

ms

Magnetic Characteristics

Table 6. Magnetic characteristics at VDD=4.0 to 24.0V, Ta= 40 to +115C

Parameter

Symbol

Min.

Typ.

Max.

Unit

Operating point of

vertical magnetic field

BopV

0.1

2.5

6.0

mT

Releasing point of

vertical magnetic field

BrpV

6.0

2.5

0.1

mT

Operating point of

horizontal magnetic field

BopH

0.1

2.5

6.0

mT

Operating point of

horizontal magnetic field

BrpH

6.0

2.5

0.1

mT

Hysteresis

BhV, BhH

5.0

mT

Note

(*1)

(*1)

(*2)

(*2)

(*1), (*2)

(*1) Horizontal magnetic flux density is zero.

(*2) Vertical magnetic flux density is zero.

MS1467-E-00

September 2012

4

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