APX9131 Datasheet, PDF (2/14 Pages) Anpec Electronics Coropration – Hall Effect Micro Switch IC

APX9131
Function Pin Descriptions
No
Name
Function
1
V_DD
Power Input
When a magnetic field enters the hall element and exceeds the operate point
BOPS (or less than BOPN) the output turns on (output is low). When the magnetic
2
V_OUT
field is below the release point BRPS (or above BRPN), the output turns off (output
is high). It is design with open drain configuration and connecting a pull up
resistor from VOUT to VDD is necessary. It cannot be floating.
3
GND
Ground Connection
Block Diagram
VDD
Awake & Sleep
Timing Logic
Hall Plane
Chopper
Amplifier
Latch
Circuit
Hysteresis
Control
VOUT
GND
Typical Applications
50KΩ
V_OUT
V_DD
APX9131
GND
0.1uF
+
2.5V-3.5V
-
SOT-23 (Top View)
Copyright © ANPEC Electronics Corp.
2
Rev. A.7 - Sep., 2005
www.anpec.com.tw