APX9142
High Sensitivity Hall Effect Sensor IC with Reverse Voltage Protection
Features
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•
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•
•
•
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On-chip Reverse Voltage Protection
On-chip Hall Sensor
Low Operating Supply Voltage: 3 V
High Output Sinking Capability up to 400mA
Versatile sensitivity and hysteresis setting
Reliable and Rugged
4 pin TO-92M Package
Build-in Output Zener Diodes to Clamp the Peak
Output Voltage
High Sensitivilty Hall Effect Senser IC:
±50G, ±65G, and ±90G
Lead Free Available (RoHS Compliant)
General Description
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
Front View
1 : V
DD
2 : DO
3 : DOB
4 : GND
•
APX9142
Applications
•
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Brushless DC Fan
Revolution Counting
Brushless DC Motor
Speed Measurement
1
2 3 4
Ordering and Marking Information
APX9142
Lead Free Code
Handling Code
Temp. Range
Package Code
Magnetic Rank
Magnetic Rank
AT : | Bop , Brp | < 50 Gauss
A : | Bop , Brp | < 65 Gauss; B : | Bop , Brp | < 90 Gauss
Package Code
E : TO - 92M4
Temp. Range
E : - 20 to 85
°
C
Handling Code
PB : Plastic Bag TB : Tape & Box TR : Tape & Reel
Lead Free Code
L : Lead Free Device
Blank : Original Device
XXXXX - Date Code
APX9142 E :
APX
9142
XXXXX
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate
termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
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.8 - Dec., 2005
1
www.anpec.com.tw
APX9142
Block Diagram
Reverse
Voltage
Protection
APX9142
Zener
Diodes
V
DD
Temperature
Compensated
Voltage
Regulator
Hall
Element
Current
Amplifier
Latch
Circuit
Hysteresis
Control
Sensitivity
Control
Output
Buffer 1
Output
Buffer 2
Zener
Diodes
DO
DOB
Gnd
Absolute Maximum Ratings
Symbol
V
DD
-V
DD
V
BD
I
DD
I
OUT
P
D
T
A
T
STG
T
SOL
Notes
(T
A
= 25°C unless otherwise noted)
Rating
20
-20
55
15
400
600
800
500
-20 to 85
-65 to 150
260
°C
Unit
V
V
V
mA
mA
mW
Parameter
Supply Voltage
Reverse Voltage
Output Breakdown Voltage
Supply Current
Output Current –
Continuous
Hold Current
Peak (Start Up)
Maximum Power Dissipation
Operating Ambient Temperature
Storage Temperature Range
Soldering Temperature (10 Sec.)
a: No leakage current spike when IC start-up
b: use Figure 1
Electrical Characteristics
Symbol
V
DD
V
SAT
Parameter
Supply Voltage
Output Saturation Voltage
(T
A
= 25°C, V
DD
=12V unless otherwise noted)
APX9142
Min.
3
600
250
Typ.
Max.
20
800
350
Test Condition
Operating
I
OUT
=400mA, B>Bop
I
OUT
=200mA, B>Bop
2
Unit
V
mV
Copyright
©
ANPEC Electronics Corp.
Rev. A.8 - Dec., 2005
www.anpec.com.tw
APX9142
Electrical Characteristics (Cont.)
Symbol
V
Clamp
I
DD
I
Leak
a
t
r
t
f
b
b
(T
A
= 25°C, V
DD
=12V unless otherwise noted)
APX9142
Min.
Typ.
30
Max.
Parameter
Clamp Output Voltage
Supply Current
Output Leakage Current
Output Rise Time
Output Fall Time
Switch Time Different
Test Condition
Unit
V
V
DD
=20V, Output Open
V
OUT
=20V, V
DD
=20V, B<Brp
R
L
=820Ω,C
L
=20pF
10
<0.1
0.8
0.1
2.5
15
10
5
1
7
mA
µA
µs
µs
µs
∆t
b
Magnetic Characteristics
Rank
AT
A
B
(T
A
= 25°C, V
DD
=12V unless otherwise noted)
Maximum Operate Point Bop
+50
+65
+90
Maximum Release Point Brp
-50
-65
-90
Unit
Gauss
Gauss
Gauss
Test Information
APX9142
1
Signal Generator
2
3
4
Scope
R
L2
V
DD
R
L1
Figure 1 : Switching Circuit for Output Rise Time and Fall Time Measurement
Copyright
©
ANPEC Electronics Corp.
Rev. A.8 - Dec., 2005
3
www.anpec.com.tw
APX9142
Typical Characteristics (Cont.)
Switching Point vs. Supply Voltage
60
APX9142AT
Supply Current vs. Temperature
9.5
9
I
OUT
=200mA
40
Vcc=20V
Supply Current (mA)
Switching Point (G)
8.5
8
7.5
7
6.5
6
5.5
20
0
-20
-40
-60
0
5
10
15
20
5
-20
0
20
40
60
80
100
120
Supply Voltage (V)
Temperature (°C)
Switching Point vs. Temperature
60
APX9142AT
Vcc=12V
40
Switching Point (G)
20
0
-20
-40
-60
-20
0
20
40
60
80
100
120
Temperature (°C)
Copyright
©
ANPEC Electronics Corp.
Rev. A.8 - Dec., 2005
5
www.anpec.com.tw
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