Diodes AH1822 Manuel d'utilisateur télécharger pdf (Page 5)

AH1822

MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR

SWITCH

AH1822 Rev. 5 5 of 9 FEBRUARY 2009

www.diodes.com © Diodes Incorporated

Magnetic Characteristics (TA=25°C, Vdd=3V, Note 6, 7)

(1mT=10 Gauss)

Symbol Characteristic Min Typ. Max Unit

Bops(south pole to brand side)

Operate Point

- 28 55

Gauss

Bopn(north pole to brand side) -55 -28 -

Brps(south pole to brand side)

Release Point

10 20 -

Brpn(north pole to brand side) - -20 -10

Bhy( BrpxBopx − )

Hysteresis 5 8 -

Notes: 6. Typical data is at Ta = 25°C, Vdd = 3V, and for design information only.

7. Operating point and release point will vary with supply voltage and operating temperature.

Bhy

Vsat

Vcc

( Output Voltage )

Bopn Brpn 0

( Magnetic flux density B )

Output

Turn on

Turn off

( off-state )

( on-state )

Bhy

Vsat

Vcc

( Output Voltage )

Brps Bops0

( Magnetic flux density B )

Output

Turn off

Turn on

( off-state )

( on-state )

TA (°C)

25 50 60 70 80 85 90 100 110 120 130 140 150

PD (mW)

230 184 166 147 129 120 110 92 74 55 37 18 0

Power Dissipation Curve

100

200

300

0 25 50 75 100 125 150

(

。

(mW)

Performance Characteristics

1 2 3 4 5 6 7 8 9

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Diodes AH1822 Manuel d'utilisateur Page 5

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