ANPEC APX9131A

APX9131A
Hall Effect Micro Switch IC
Features
•
•
•
General Description
The APX9131A, integrated circuit, is an ultra-sensitive,
pole independent Hall-effect switch with a latched digital
Micro Power Operation for Battery Applications
Chopper Stabilized Amplifier
output. A 2.5 volt to 3.5 volt operation and an unique clocking scheme reduce the average operating power
Independent of North or South Pole Magnet,
Easy for Manufacture
•
•
requirements, either a north or south pole of sufficient
flux will turn the output on; in the absence of a magnetic
Small Size Package
Lead Free and Green Devices Available
field, the output is off. The polarity independence and
minimal power requirement allow this device to be easily
(RoHS Compliant)
replaced reed switch for superior for signal conditioning.
Advanced CMOS processing is used to take advantage of
Applications
•
•
•
•
low-voltage and low-power requirements, SOT-23 package provided a optimized package for most applications.
Micro Switch
Pin Configuration
Handheld Wireless Application Wake Up Switch
Clamp Shell Type Application Switch
GND
Magnet Switch in Low Duty Cycle Applications
APX9131A
VOUT
VDD
SOT-23
Ordering and Marking Information
Package Code
A : SOT-23
Operating Ambient Temperature Range
I : -40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
APX9131A
Assembly Material
Handling Code
Temperature Range
Package Code
APX9131A A:
X - Date Code
X31X
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. 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 defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
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.2 - Apr., 2009
1
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APX9131A
Absolute Maximum Ratings
Symbol
(TA = 25°C unless otherwise noted)
Parameter
Rating
Unit
VDD
Supply Voltage
5
V
VOUT
Output Voltage
5
V
TJ
Junction Temperature Range
150
TSTG
Storage Temperature Range
-65 to +150
Electrical Characteristics
°C
(TA = 25°C, VDD=3V unless otherwise noted)
APX9131A
Symbol
VDD
IDD
Characteristic
Supply Voltage Range
Supply Current
Test Conditions
Unit
Min.
Typ.
Max.
2.5
-
3.5
V
Average
-
5
10
µA
Awake
-
1.2
2
mA
Sleep
-
2
8
µA
Operating
IOFF
Output Leakage Current
VOUT = 3.5V, BRPN<B<BRPS
-
-
1.0
µA
VOL
Output Low Voltage
ISINK = 1mA
-
20
40
mV
tawake
Wake Up Time
-
180
-
µs
tperiod
Period
-
60
-
mS
d.c.
Duty Cycle
-
0.3
-
%
Chopping Frequency
-
11
-
kHz
fc
Magnetic Characteristics
(TA = 25°C, VDD=3V unless otherwise noted)
APX9131A
Symbol
Characteristic
Test Conditions
BOPS
Unit
Min.
Typ.
Max.
20
40
60
G
-60
-40
-20
G
10
25
50
G
-50
-25
-10
G
-
15
-
G
Operate Points
BOPN
BRPS
Release Points
BRPN
Bhys
Hysteresis
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APX9131A
Typical Operating Characteristics
Switching Points vs. Supply Voltage
Switching Points vs. Ambient Temperature
80
60
BOPS
40
BOPS
40
20
Switching Points(G)
Switching Points(G)
60
BRPS
0
BRPN
-20
-40
BOPN
-60
-80
-40
-20
0
20
BRPS
0
BRPN
-20
-40
20
40
60
80
BOPN
-60
2.5
100
3
Ambient Temperature( C)
Average Supply Current vs. Ambient
Temperature
10
20
Average Supply Current (µA)
Average Supply Current (µA)
3.5
4
4.5
5
Supply Voltage(V)
o
8
6
4
2
Average Supply Current vs. Supply
Voltage
18
16
14
12
10
8
6
4
2
0
-40
-20
0
20
40
60
80
0
2.5
100
3
3.5
4
4.5
5
Supply Voltage(V)
Ambient Temperature (oC)
Output Sink Current vs. Output Low Voltage
20
VDD=5V
Output Sink Current(mA)
18
16
VDD=4V
14
12
VDD=3V
10
8
6
4
2
0
0
0.2
0.4
0.6
0.8
1
Output Low Voltage(V)
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APX9131A
Operating Waveforms
Output Switch Waveform
VDD=3V
RL=5.1kΩ
CL=12pF
Output Sink Voltage (0.5V/div)
Output Sink Voltage (0.5V/div)
Output Switch Waveform
VDD=3V
RL=5.1kΩ
CL=12pF
VOUT=0.5V/div
VOUT=0.5V/div
0
Time (2µs/div)
Time (50µs/div)
Pin Description
PIN
FUNCTION
NO.
NAME
1
VDD
2
VOUT
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 field is below the release point BRPS
(or above BRPN), the output turns off (output is high). It is designed with open drain configuration
and connecting a pull up resistor from VOUT to VDD is necessary. It cannot be floating.
3
GND
Ground Connection.
Power Input
Copyright  ANPEC Electronics Corp.
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APX9131A
Block Diagram
VDD
Awake & Sleep
Timing Logic
VOUT
Dynamic Offset
Cancellation
Hall Plane
Latch
Circuit
Chopper
Amplifier
Hysteresis
Control
GND
Typical Application Circuit
50kΩ
VDD
VOUT
+
APX9131A
2.5V-3.5V
0.1µF
GND
-
SOT-23 (Top View)
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2009
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APX9131A
Function Description
Operation
Chopper Stabilized Technique
The output of APX9131A switches low (turns on) when in
presence of strong flux density facing the marked side of
The chopper stabilized technique cancels the mismatching of the hall element, the amplifier offset voltage and
package exceeds the operate point BOPS (or is less than
BOPN). After turn-on, the output is capable of sinking up to
temperature sensitive drift by the dynamic offset cancellation and switched capacitor technique. This technique
1mA and the output voltage is low (turns on). In absence
of flux density below the release point BRPS (or increased
produces devices have an extremely stable Hall output
voltage, therefore, the magnetic switch points are stable.
above BRPN), the APX9131A output switches high (turns
off). The difference in the magnetic operated and released
point is the hysteresis (Bhys) of the device. This built-in
hysteresis allows clean switching of the output even in the
presence of external mechanical bouncing vibration and
electrical noise.
OUTPUT OFF
BOPN
OUTPUT VOLTAGE
5V
MAX
BOPS
BRPN
0
-B
BRPS
0
OUTPUT ON
+B
MAGNETIC FLUX
Pole-Independent
The pole-independent sensing technique allows for operation with either a north or south pole magnet
orientation, enhancing the manufacturability of the device.
The state-of-the-art technology provides the same output
polarity for either pole in presence.
Awake & Sleep
Internal awake & sleep timing block circuit activates the
sensor for 180µs and deactivates it for the remainder of the
period (60ms). A short “awake” time allows for stabilization prior to the sensor sampling and data latching on the
falling edge of the timing pulse. While in sleep cycle, the
output is latched in its previous state.
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2009
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APX9131A
Application Information
It is strongly recommended that an external bypass capacitor be connected (in close to the Hall sensor) between the supply and the ground of the device to reduce
both external noise and noise generated by the chopper-stabilization technique. This is especially true due
to the relatively high impedance of battery supplies.The
output is an open drain output, it must be connected a pullup resistor to a supply voltage which is lower than 5V,
connect a 50kΩ resistor to VDD in common use.
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2009
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APX9131A
Package Information
SOT-23
D
e
E
E1
SEE
VIEW A
c
b
0.25
A
L
GAUGE PLANE
SEATING PLANE
0
A1
A2
e1
VIEW A
S
Y
M
B
O
L
SOT-23
INCHES
MILLIMETERS
MIN.
MIN.
MAX.
A
MAX.
0.057
1.45
A1
0.00
0.15
0.000
0.006
A2
0.90
1.30
0.035
0.051
b
0.30
0.50
0.012
0.020
c
0.08
0.22
0.003
0.009
D
2.70
3.10
0.106
0.122
E
2.60
3.00
0.102
0.118
E1
1.40
1.80
0.055
0.071
e
0.95 BSC
e1
1.90 BSC
0.037 BSC
0.075 BSC
L
0.30
0.60
0
0°
8°
0.012
0°
0.024
8°
Note : Dimension D and E1 do not include mold flash, protrusions or gate
burrs. Mold flash, protrusion or gate burrs shall not exceed 10 mil
per side.
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2009
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APX9131A
Carrier Tape & Reel Dimensions
P0
P2
P1
A
B0
W
F
E1
OD0
K0
A0
A
OD1 B
B
T
SECTION A-A
SECTION B-B
H
A
d
T1
Application
SOT-23
A
H
T1
C
d
D
W
E1
F
178.0±2.00
50 MIN.
8.4+2.00
-0.00
13.0+0.50
-0.20
1.5 MIN.
20.2 MIN.
8.0±0.30
1.75±0.10
3.5±0.05
P0
P1
P2
D0
D1
T
A0
B0
K0
2.0±0.05
1.5+0.10
-0.00
1.0 MIN.
0.6+0.00
-0.40
3.20±0.20
3.10±0.20
1.50±0.20
4.0±0.10
4.0±0.10
(mm)
Devices Per Unit
Package Type
Unit
Quantity
SOT-23
Tape & Reel
3000
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APX9131A
Taping Direction Information
SOT-23
USER DIRECTION OF FEED
Classification Profile
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2009
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APX9131A
Classification Reflow Profiles
Profile Feature
Sn-Pb Eutectic Assembly
Pb-Free Assembly
100 °C
150 °C
60-120 seconds
150 °C
200 °C
60-120 seconds
3 °C/second max.
3°C/second max.
183 °C
60-150 seconds
217 °C
60-150 seconds
See Classification Temp in table 1
See Classification Temp in table 2
Time (tP)** within 5°C of the specified
classification temperature (Tc)
20** seconds
30** seconds
Average ramp-down rate (Tp to Tsmax)
6 °C/second max.
6 °C/second max.
6 minutes max.
8 minutes max.
Preheat & Soak
Temperature min (Tsmin)
Temperature max (Tsmax)
Time (Tsmin to Tsmax) (ts)
Average ramp-up rate
(Tsmax to TP)
Liquidous temperature (TL)
Time at liquidous (tL)
Peak
(Tp)*
package
body
Temperature
Time 25°C to peak temperature
* Tolerance for peak profile Temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
Table 1. SnPb Eutectic Process – Classification Temperatures (Tc)
3
Package
Thickness
<2.5 mm
Volume mm
<350
235 °C
Volume mm
≥350
220 °C
≥2.5 mm
220 °C
220 °C
3
Table 2. Pb-free Process – Classification Temperatures (Tc)
Package
Thickness
<1.6 mm
1.6 mm – 2.5 mm
≥2.5 mm
Volume mm
<350
260 °C
260 °C
250 °C
3
Volume mm
350-2000
260 °C
250 °C
245 °C
3
Volume mm
>2000
260 °C
245 °C
245 °C
3
Reliability Test Program
Test item
SOLDERABILITY
HOLT
PCT
TCT
ESD
Latch-Up
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2009
Method
JESD-22, B102
JESD-22, A108
JESD-22, A102
JESD-22, A104
MIL-STD-883-3015.7
JESD 78
11
Description
5 Sec, 245°C
1000 Hrs, Bias @ 125°C
168 Hrs, 100%RH, 2atm, 121°C
500 Cycles, -65°C~150°C
VHBM≧2KV, VMM≧200V
10ms, 1tr≧100mA
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APX9131A
Customer Service
Anpec Electronics Corp.
Head Office :
No.6, Dusing 1st Road, SBIP,
Hsin-Chu, Taiwan
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
2F, No. 11, Lane 218, Sec 2 Jhongsing Rd.,
Sindian City, Taipei County 23146, Taiwan
Tel : 886-2-2910-3838
Fax : 886-2-2917-3838
Copyright  ANPEC Electronics Corp.
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