AH350-P [DIODES]
Sensor/Transducer, Single-ended, 3 Pin, Plastic/epoxy,;
| 型号： | AH350-P |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Sensor/Transducer, Single-ended, 3 Pin, Plastic/epoxy, |
| 文件： | 总5页 (文件大小：176K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AH350
Linear Hall-Effect Sensors
Features
General Description
- Extremely Sensitive
- Flat Response to 23 KHz
- Low-Noise Output
The AH350 Hall-effect sensors accurately track
extremely small changes in magnetic flux
density—changes are generally too small to
operate Hall-effect switches.
- 4.5V to 6V Operation
- SIP-3L Package
As motion detectors, gear tooth sensors, and
proximity detectors, they are magnetically driven
mirrors of mechanical events.
As sensitive
monitors of electromagnets, they can effectively
measure system’s performance with negligible
system loading while providing isolation from
contaminated and electrically noisy environments.
Application
- Gear tooth Sensor
- Notch Sensor
- Current Sensor
Each Hall-effect integrated circuit includes a Hall
sensing
element,
linear
amplifier,
and
emitter-follower output stage. Having the Hall cell
and amplifier on a single chip minimizes problems
associated with handling tiny analog signals.
The device is rated for continuous operation over
the temperature range of -20°C to +85°C.
Pin Configuration
Pin Assignment
(Top View)
Name
Description
Input power
3. OUTPUT
SUPPLY
GND
2. GND
Ground
1. SUPPLY
Output stage
OUTPUT
(SIP3 package)
Ordering Information
AH350 X - X X X
Packing
Blank : Tube
Wafer Body
Lead
Package
P: SIP-3L
Blank or
L : Lead Free
Blank: Normal
A~Z : if necessary
to specify
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. 1.0 Aug 24, 2005
1/5
AH350
Linear Hall-Effect Sensors
Block Diagram
VCC
1
REG.
X
OUTPUT
GND
3
2
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage
Vcc
B
Top
Tstg
8
V
Gauss
°C
Magnetic flux density
Operating temperature range
Storage temperature range
Unlimited
-20~+85
-65~+150
°C
Electrical Characteristics (at Ta = 25°C, Vcc=5V)
Characteristic
Symbol
Conditions
Min
Typ
－
Max
Unit
Supply Voltage
Supply Current
Quiescent Output Voltage
Sensitivity
Vcc
Icc
Vout
4.5
－
6.0
9
2.85
2.2
－
V
mA
V
5
B=0G
2.35 2.60
∆Vout B=0G to ±900G
BW
Vout
Rout
1.4
－
－
－
1.8
23
90
50
mV/G
kHz
µV
Bandwidth (-3 dB)
Broadband Output Noise
Output Resistance
－
BW=10Hz to 10kHz
220
Ω
All output-voltage measurements are made with a voltmeter having an input impedance of at least 10 kΩ. Magnetic flux density is
measured at most sensitive area of device located 1.15mm below from top side and 2.0mm from right side.
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Aug 24, 2005
2/5
AH350
Linear Hall-Effect Sensors
Typical Performance Characteristics
Output Voltage as a Function of
Temperature
Device Sensitivity as a Function of
Supply Voltage
5
4
3
2
1
0
Vcc=+5V
B=+500G
B=0G
B=-500G
Ta= +25deg.
4.5
3.5
2.5
1.5
sensitivity
-40
-20
0
25
85
125
4.5
4
5
5.5
6
Temperature (oC)
Supply Voltage(V)
Output Null Voltage as a Function of
Supply Voltage
Supply current as a
Function of Supply Voltage
B= 0G
5.4
5.2
5
3.5
3
B=0G
Ta=+25deg
Ta= +25deg.
2.5
2
1.5
1
0.5
0
4.8
4.6
4.4
4.2
Icc
Output voltage
4.5
5
5.5
6
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
Supply voltage(V)
Supply Voltage(V)
Performance Characteristics (SIP3)
25
50
60
70
80
85
286
130
88
90
264
135
66
95
242
140
44
100
220
150
0
Ta (°C)
Pd (mW)
Ta (°C)
550
105
198
440
110
176
396
115
154
352
120
132
308
125
110
Pd (mW)
Pd (mW)
600
Power Dissipation Curve
500
400
300
200
100
0
0
85
25
50
75
100
125
150
Ta (。C)
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Aug 24, 2005
3/5
AH350
Linear Hall-Effect Sensors
Function Descriptions
The output null voltage (B=0G) is nominally
one-half the supply voltage. A south magnetic
pole, presented to the branded face of the
Hall-effect sensor will drive the output higher than
the null voltage level. A north magnetic pole will
drive the output below the null level.
The south pole of a magnet is attached to the back
of the package if the Hall-effect IC is to sense the
presence of ferrous material. The north pole of a
magnet is attached to the back surface if the
integrated circuit is to sense the absence of ferrous
material.
In operation, instantaneous and proportional
output-voltage levels are dependent on magnetic
flux density at the most sensitive area of the device.
Greatest sensitivity is obtained with a supply
voltage of 6V, but at the cost of increased supply
current and a slight loss of output symmetry. The
sensor’s output is usually capacitively coupled to an
amplifier that boosts the output above the millivolt
level.
Calibrated linear Hall devices, which can be used to
determine the actual flux density presented to the
sensor in a particular application, are available.
In two applications shown, a permanent bias
magnet is attached with epoxy glue to the back of
the epoxy package. The presence of ferrous
material at the face of the package acts as a flux
concentrator.
Marking Information
SIP3
(Top View)
ID code
350
A~Z: Non-Lead Free
a~z : Lead Free
YWW X
Date code
Y : Year
WW : Nth week
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Aug 24, 2005
4/5
AH350
Linear Hall-Effect Sensors
Package Information
Package Type: SIP-3
0.51mm
NOM
2.00mm
1.15mm
BRANDED
SURFACE
1
2
3
Active Area Depth
Sensor Location
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
Package Dimension
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Aug 24, 2005
5/5
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