ATS137A-P-A [ANACHIP]
Single Hall Effect Switch; 单个霍尔效应开关
| 型号： | ATS137A-P-A |
| 厂家： | 
ANACHIP CORP |
| 描述： | Single Hall Effect Switch |
| 文件： | 总7页 (文件大小：203K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Single Hall Effect Switch
ATS137
ꢀ Features
ꢀ General Description
- 3.5V to 20V DC operation voltage
- Temperature compensation
- Wide operating voltage range
- Open-Collector pre-driver
ATS137 is an switched Hall-Effect IC which is for
contactless switching applications. The device
includes an on-chip Hall voltage generator for
magnetic sensing, an amplifier that amplifies the
Hall voltage, a schmitt trigger to provide switching
hysteresis for noise rejection, and an open-collector
output. The bandgap regulator allows a wide
operating voltage range.
- 25mA maximum sinking output current.
- Reverse Polarity Protection
ATS137 is rated for operating temperature range
from -20°C to 85°C and voltage range from 3.5V to
20V.
ꢀ Applications
- VCD/DVD loader, CD/DVD ROM
- Cover detector
- Speed measurement
- Home appliances
- Home safety
ꢀ Ordering Information
ATS137X - X X X - X
Magnetic
Single Hall-effect Switch
Wafer Body
Package
Lead
Packing
Characteristics
P: SIP3
L : Lead Free Blank : Tube or Bulk
A or B
Blank or
A
:
Tape & Reel
A~Z : if necessary
to specify
W: SOT23
Blank: Normal
ꢀ Typical Circuit
3.5V ~20V
RL
Vcc
DO
ATS
137
Digital Output
Vss
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.A5 Jul 14, 2004
1/7
Single Hall Effect Switch
ATS137
ꢀ Functional Block Diagrams
Vcc
1
Regulator
Hall
plate
3
2
DO
Amp
Vss
ꢀ Pin Descriptions
2
137
Top view
137
1 : Vcc
2 : Vss
3 : DO
1
3
1
2
3
Name
P/I/O
Pin #
Description
Vcc
Vss
DO
P
P
O
1
2
3
Positive Power Supply
Ground
Digital Output
Anachip Corp.
www.anachip.com.tw
Rev. A5 Jul 14, 2004
2/7
Single Hall Effect Switch
ATS137
ꢀ Absolute Maximum Ratings ( at Ta=25oC )
Characteristics
Symbol
Values
Unit
Supply voltage
VCC
VRCC
B
20
V
V
Reverse Vcc Polarity Voltage
Magnetic flux density
Output OFF Voltage
-20
Unlimited
Vce
Ic
30
25
V
Output “on” current
Continuous
mA
°C
Operating temperature
Storage temperature
Maximum Junction Temp.
Ta
Ts
Tj
-20~+85
-65~+150
175
°C
°C
SIP-3L
SOT23-3L
400
200
mW
mW
Package Power
Pd
Dissipation
ꢀ Electrical Characteristics (Ta=+ 25°C)
Characteristic
Supply voltage
Output saturation voltage
Output leakage current
Supply current
Symbol
Test Conditions
Min
Typ
Max
Units
Vcc
Vce(sat)
Icex
—
3.5
-
20
700
10
V
Vcc=14V, Ic=20mA
Vce=14V, Vcc=14V
Vcc=20V, Output Open
-
-
-
300
<0.1
5
mV
uA
mA
Icc
10
Vcc=14V, RL=820Ω,
Output rise time
tr
tf
-
-
0.3
0.3
1.5
1.5
us
us
CL=20pF
Vcc=14V, RL=820Ω,
Output falling time
CL=20pF
ꢀ Test Circuit
14V
DO
RL
CL
RL=820 Ohm
CL=20 pF
Test Circuit
Anachip Corp.
www.anachip.com.tw
Rev. A5 Jul 14, 2004
3/7
Single Hall Effect Switch
ATS137
ꢀ Magnetic Characteristics (Ta=25oC)
A grade
(1mT=10Gauss)
Parameter
Operate Point
Release point
Symbol
Min.
Typ.
Max.
Unit
Bop
-
10
-
-
-
80
100
-
-
Gauss
Gauss
Gauss
Brp
Hysteresis
Bhys
B grade
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Release point
Hysteresis
Bop
-
10
-
-
-
80
130
-
-
Gauss
Gauss
Gauss
Brp
Bhys
ꢀ Application Information
-Operating principle
ATS137 is a three pins Hall Effect switch IC which can turn magnetic flux variety to digital output signal. In
other words, it is an interface from magnetic system to electrical one by Hall effect. The illustrations are shown
in Fig.1.
Vo
Vcc
Magnet
Bhys
S
Marking
side
Turn off
Turn on
Vce(sat)
magnetic flux
(Gauss)
Brp
Bop
electrical
Fig.1 Hall-effect switch
Output driver is open-collector topology and maximum sink current (Isink) is 25mA. The illustrated circuit is
shown as Fig.2.
3.5V ~20V
Vcc
RL
Vo
DO
ATS
137S
Digital Output
Isink
Vss
Fig.2 Application circuit
Anachip Corp.
www.anachip.com.tw
Rev. A5 Jul 14, 2004
4/7
Single Hall Effect Switch
ATS137
ꢀ Application Information (Continued)
Vo will turn on(low) if the S magnetic flux larger than operation point (Bop), and turns off whenever the
magnetic flux is removed and lower than release point (Brp). The related waveforms are shown in Fig.3.
magnetic flux (mT)
Bop
Brp
S
Marking side
t
Vo
Vcc
Vce(sat)
Hall Effect switch
t
Fig.3 Vo and magnetic flux variety
The major applications are for contactless switching and shown as follows:
-
-
VCD/DVD loader, CD/DVD ROM: Detect if the tray is opened or closed
Cover detector (open/close): Cellular phone cover detector, Refrigerator door detector, Microwave oven
door sensor… etc
-
-
Home safety: instead of reed relay to detect the situation of door/window.
Due to contactless and without mechanical contact point, its reliability and life cycle are much longer than
reed relay. In addition, its switching speed is much faster than mechanical devices.
Anachip Corp.
www.anachip.com.tw
Rev. A5 Jul 14, 2004
5/7
Single Hall Effect Switch
ATS137
ꢀ Marking Information
(1) SOT23
(2) SIP3
(Top View)
(Top View)
ID code
A~Z: Non-Lead Free
ID code
137
a~z: Lead Free
JA: ATS137
XX YM X
A~Z: Non-Lead Free
a~z : Lead Free
YWW X
Date code
Date code
Y : Year
Y : Year
M : Month (A~L)
WW : Nth week
ꢀ Package Information
(1)Package Type: SIP-3L
0.51mm
NOM
2.10mm
1.55mm
BRANDED
SURFACE
1
2
3
Sensor Location
Active Area Depth
Package Dimension
45
º
0.38mm
0.7mm
1.57mm
1.47mm
0.41mm
0.41mm
3
2
1.27mm
4.17mm
4.04mm
1
1.82
mm
15.50mm
3.10mm
2.97mm
45
º
13.00mm
Anachip Corp.
www.anachip.com.tw
Rev. A5 Jul 14, 2004
6/7
Single Hall Effect Switch
ATS137
ꢀ Package Information (Continued)
(2)Package Type: SOT23-3L
D
2
( Sensing point )
0.8mm
1
3
SEE VIEW C
1.45mm
e1
e
£c1(4x)
0.10 C
3X
GAUGE PLANE
£c
L
SEATING PLANE
L1
£c2(4x)
VIEW C
Dimensions In Inches
b(3x)
Dimensions In Millimeters
Symbol
Min.
1.05
0.05
1.00
0.25
0.08
2.70
1.50
2.60
0.30
0.50
1.80
0.85
0o
Nom.
-
Max.
1.35
0.15
1.20
0.50
0.20
3.00
1.70
3.00
0.55
0.70
2.00
1.05
10o
Min.
Nom.
Max.
0.053
A
A1
A2
b
0.041
0.002
0.039
0.010
0.003
0.106
0.059
0.102
0.012
0.020
0.071
0.033
0o
-
-
-
0.006
0.047
0.020
0.008
0.118
0.067
0.118
0.022
0.028
0.079
0.041
10o
1.10
-
-
2.90
1.60
2.80
-
0.043
-
C
-
D
0.114
0.063
0.110
-
E
HE
L
L1
e
0.60
1.90
0.95
5o
0.024
0.075
0.037
5o
e1
θ
θ1
θ2
3o
5o
7o
3o
5o
7o
6o
8o
10o
6o
8o
10o
Anachip Corp.
www.anachip.com.tw
Rev. A5 Jul 14, 2004
7/7
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