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AX8112 Datasheet

Ultra-sensitive Hall Effect Switch

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AX8112
MicroPower, Ultra-sensitive Hall Effect Switch
GENERAL DESCRIPTION
AX8112 is a Hall Effect sensor device with Dual output driver, mainly designed for
batteryoperation, hand-held equipment (such as Cellular and Cordless Phone, PDA). For
AX8112, the total operation power is down to 10uW in the 1.8V supply.
Either north or South Pole of sufficient strength will turn the output on. The output will
be turned off under no magnetic field. When the magnetic flux density (B) is larger than
operate point (Bop) the output is switched on. The output is turned off when B becomes
lower than the release point (Brp). The output will remain off when there is no magnetic
field. The AX8112 has two outputs, output one pulls low when switched on and output two
is inverted.
FEATURES
- Micro Power Operation for Battery Applications
- 1.65V to 3.30V battery operation
- Chopper Stabilized Technology
- Operation with North or South Pole
- Good RF noise immunity
- High sensitivity and high stability of the magnetic switching points
- 5-pin Thin TSOT23 Package
BLOCK DIAGRAM
VDD
Awake/Sleep
Timing Control
Hall
Plate
Offset
Cancellation
-
+
P-MOS
N-MOS
Logic
VDD
P-MOS
N-MOS
OUT1
OUT2
GND
1/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Aug.16, 2011




AXElite

AX8112 Datasheet Preview

AX8112 Datasheet

Ultra-sensitive Hall Effect Switch

No Preview Available !

AX8112
PIN ASSIGNMET
The packages of AX8112 are TSOT23-5L; the pin assignment is given by:
OUT1
VDD
54
Name Description
VDD Power Input
TSOT23-5L
GND Ground
OUT1 Output Pin (active Low)
12 3
OUT2 Output Pin (active High)
OUT2 GND NC
ORDER/MARKING INFORMATION
Order Information
Top Marking
AX8112 XX X
Package Type
BT:TSOT23-5L
Packing
Blank : Bag
A : Taping
HFY W X
AX8112
ID code:internal
WW: 01~26 (A~Z)
27~52 (a~z)
Year: A= 2010
1= 2011
ABSOLUTE MAXIMUM RATINGS (at TA=25°C)
Characteristics
Symbol Rating
VDD Pin Voltage
VDD - 0.3 to 4.5V
Output Pin Voltage
Output Current
VOUT - 0.3 to 4.5V
IOUT ±1
Storage Temperature Range
TST -65 to +150
Junction Temperature
TJ +125
Operating Temperature Range
TOP -40 to +85
Thermal Resistance from Junction to case
θJC 180
Thermal Resistance from Junction to ambient
θJA 250
Power Dissipation[PD=( TJ-TA ) / θJA ]
PD 400
Note : θJA is measured with the PCB copper area of approximately 1 in2(Multi-layer).
Unit
V
V
mA
°C
°C
°C
°C/W
°C/W
mW
2/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Aug.16, 2011


Part Number AX8112
Description Ultra-sensitive Hall Effect Switch
Maker AXElite
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AX8112 Datasheet PDF






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