Diodes ATS137 - Manual (Page 6)

ATS137
SINGLE HALL EFFECT SWITCH
ATS137 Rev. 10 6 of 12 FEBRUARY 2010
DS31045 www.diodes.com © Diodes Incorporated
Application Information
Operating principle:
ATS137 is a three-pin Hall Effect switch IC which can turn magnetic flux variety to digital output signal. In other words, it is an interface
from magnetic system to an electrical one by Hall effect. The illustrations are shown in Fig.1.
V
O
Vce(
SAT
)
V
CC
Magnetic Flux
(Gauss)
Turn On Turn Off
hys
B
op
B
rp
B
Magnet
Electrical
S
Marking
Side
Fig.1 Hall-Effect Switch
Output driver is open-collector topology and maximum sink current (I
sink
) is 25mA. The illustrated circuit is shown as Fig. 2.
ATS137
3.5 V ~20V
Digital Output
V
CC
DO
GND
Vo
L
R
sink
I
Fig.2 Application Circuit