AH1887

MICROPOWER, ULTRA-SENSITIVE HALL EFFECT

SWITCH

AH1887

Document number: DS31313 Rev. 4 - 2

3 of 7

www.diodes.com

August 2010

© Diodes Incorporated

Symbol

Characteristic

Conditions

Min

Typ.

Max

Unit

Output On Voltage (High side)

Vdd-0.2

-

-

V

Output On Voltage (Low side)

-

-

0.2

V

Idd(en)

Supply Current

Chip enable

-

2

4

mA

Idd(dis)

Chip disable

-

5

8

uA

Idd(avg)

average supply current

-

7

12

uA

Tawake

Awake Time

-

50

100

µs

Tperiod

Period

-

50

100

ms

D.C.

Duty Cycle

-

0.1

-

%

(1mT=10 Gauss)

Symbol

Characteristic

Min

Typ.

Max

Unit

Bops(south pole to brand side)

Operate Point

-

35

50

Gauss

Bopn(north pole to brand side)

-50

-35

-

Brps(south pole to brand side)

Release Point

6

20

-

Brpn(north pole to brand side)

-

-20

-6

Bhy(|Bopx|-|Brpx|)

Hysteresis

3

15

-

Notes:

2. Typical data is at Ta = 25

°C, Vdd = 3V, and for design information only.

3. Bops & Brps for Output 1 responds to South pole; Bopn & Brpn for Output 2 responds to North pole.

4. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.

( Magnetic flux density B )

Output2

Turn on

Turn off

( off-state )

( on-state )

0

( Magnetic flux density B )

Output1

Turn off

Turn on

( off-state )

( on-state )

N

NS

S