ANPEC APX9142BEE-TR, APX9142BEE-TB, APX9142BEE-PB, APX9142ATEE-TR, APX9142ATEE-TB Datasheet
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APX9142
High Sensitivity Hall Effect Sensor IC with Reverse Voltage Protection
Features General Description
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On-chip Reverse Voltage Protection
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On-chip Hall Sensor
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Low Operating Supply Voltage : 3 V
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High Output Sinking Capability up to 400mA
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Versatile sensitivity and hysteresis setting
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Reliable and Rugged
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• 4 pin TO-92M Package
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• Build-in Output Zener Diodes to Clamp the
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Peak Output Voltage
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• High Sensitivilty Hall Effect Senser IC:±50G,
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±65G, and ±90G
Applications
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• Brushless DC Fan
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• Revolution Counting
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The APX9142 is an integrated Hall Effect Sensor IC
designed for electric commutation of DC brushless
motor applications. The APX9142 still can operate at
as low as 3 volts. The APX9142 is available in low
cost TO -92M4 package with 3 different magnetic
ranks.
Pin Description
APX9142
1
23
4
Front View
1 : V
DD
2 : DO
3 : DOB
4 : GND
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• Brushless DC Motor
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• Speed Measurement
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Ordering and Marking Information
Magnetic Rank
APX9142
Handling Code
Tem p. Range
Package Code
Magnetic Rank
APX 9142 E :
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003
APX
9142
XXXXX
AT : | Bop , Brp | < 50 Gauss
A : | Bop , Brp | < 65 Gauss
B : | Bop , Brp | < 90 Gauss
Package C ode
E : T O - 9 2 M 4
Tem p. Range
E : - 2 0 to 8 5 C
Handling Code
PB : Plastic Bag TB : Tape & Box
TR : Tape & Reel
XXXXX - Date Code
°
www.anpec.com.tw1
APX9142
Block Diagram
Reverse
Voltage
Protection
Temperature
V
DD
Compensated
Voltage
Regulator
Hall
Element
APX9142
Current
Amplifier
Latch
Circuit
Hysteresis
Control
Output
Buffer 1
Output
Buffer 2
Zener
Diodes
DO
DOB
Zener
Diodes
Gnd
Absolute Maximum Ratings T
Sensitivity
Control
= 25°C unless otherwise noted
A
Symbol Parameter Rating Unit
V
DD
I
DD
I
OUT
P
D
T
A
T
STG
T
SOL
Electrical Characteristics T
Supply Voltage 20 V
Supply Current 15 mA
Output Current – Continuous
Hold Current
Peak (Start Up)
400
600
800
Maximum Power Dissipation 500 mW
Operating Ambient Temperature -20 to 85
Storage Temperature Range -65 to 150
Soldering Temperature (10 Sec.) 260
= 25°C, VDD=12V unless otherwise noted
A
APX9142Symbol Parameter Test Condition
Min. Typ. Max.
V
I
V
V
Clamp
I
Leak
t
t
∆
Supply Voltage Operating 3 20 V
DD
I
=400mA, B>Bop 600 800
Output Saturation Voltage
SAT
OUT
I
=200mA, B>Bop 250 350
OUT
Clamp Output Voltage 30 V
Supply Current VDD=20V, Output Open 10 15 mA
DD
a
Output Leakage Current V
b
Output Rise Time 0.8 5
r
b
Output Fall Time 0.1 1
f
b
Switch Time Different
t
=20V, VDD=20V, B<Brp <0.1 10
OUT
R
=820Ω,CL=20pF
L
2.5 7
mA
C
°
Unit
mV
A
µ
µ
µ
µ
s
s
s
Notes a : No leakage current spike when IC start-up
b : use Figure 1
Copyright ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003
www.anpec.com.tw2
APX9142
Magnetic Characteristics T
Rank Maximum Operate Point
Bop
AT +40 -40 Gauss
A +55 -55 Gauss
B +80 -80 Gauss
Test Information
Signal Generator
V
DD
= 25°C, VDD=12V unless otherwise noted
A
Maximum Release Point
Brp
APX9142
2314
Scope
R
L2
R
L1
Unit
Figure 1 : Switching Circuit for Output Rise Time and Fall Time Measurement
Application Circuit
APX9142
+B
-B
231
4
V
DD
C1
Figure 2 Typical DC brushless fan application circuit
V
DD
L1 L2
Copyright ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003
www.anpec.com.tw3
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