|
|
PDF A3230 Data sheet ( Hoja de datos )
| Número de pieza | A3230 | |
| Descripción | Chopper-Stabilized Hall-Effect Bipolar Switch | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de A3230 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
A3230
Chopper-Stabilized Hall-Effect Bipolar Switch
Features and Benefits
▪ Chopper stabilization
▫ Superior temperature stability
▫ Extremely low switchpoint drift
▫ Insensitive to physical stress
▪ Reverse battery protection
▪ Output short circuit protection
▪ Solid state reliability
▪ Small size
▪ Robust EMC capability
▪ High ESD ratings (HBM)
Packages: 3 pin SOT23W (suffix LH), and
3 pin SIP (suffix UA)
Description
The A3230 Hall-effect sensor is a temperature stable, stress-
resistant bipolar switch. This sensor is the most sensitive
Hall-effect device in the Allegro® bipolar switch family and
is intended for ring-magnet sensing. Superior high-temperature
performance is made possible through an Allegro patented
dynamic offset cancellation that utilizes chopper-stabilization.
This method reduces the offset voltage normally caused by
device overmolding, temperature dependencies, and thermal
stress.
The A3230 includes the following on a single silicon chip:
a voltage regulator, Hall-voltage generator, small-signal
amplifier, chopper stabilization, Schmitt trigger, and a short
circuit protected open-drain output. Advanced BiCMOS
wafer fabrication processing takes advantage of low-voltage
requirements, component matching, very low input-offset
errors, and small component geometries.
The A3230 Hall-effect bipolar switch turns on in a south
polarity magnetic field of sufficient strength and switches
off in a north polarity magnetic field of sufficient strength.
Becausewww.DataSheet4U.com the output state is not defined if the magnetic field is
Not to scale
Continued on the next page…
Functional Block Diagram
VCC
Amp
Regulator
To All Subcircuits
Control
Current Limit
VOUT
<1Ω
3230-DS, Rev. 2
GND
1 page  
A3230
Chopper-Stabilized Hall Effect Bipolar Switch
Magnetic Characteristic Data
Operate Point versus Ambient Temperature
25
20
15
10 VCC (V)
24
5 3.8
0
-5
-10
–50
0 50 100 150
TA (°C)
Release Point versus Ambient Temperature
10
5
0
-5 VCC (V)
24
-10 3.8
-15
-20
-25
–50
0 50 100 150
TA (°C)
Hysteresis versus Ambient Temperature
25
25
20
15
10
5
0
-5
-10
0
10
5
0
-5
-10
-15
-20
-25
0
25
Operate Point versus Supply Voltage
5 10 15 20
VCC (V)
Release Point versus Supply Voltage
5 10 15 20
VCC (V)
Hysteresis versus Supply Voltage
TA (°C)
–40
25
150
25
TA (°C)
–40
25
150
25
20
15
10
5
–50
VCC (V)
24
3.8
0 50 100
TA (°C)
150
20
15
10
5
0
TA (°C)
–40
25
150
5 10 15 20 25
VCC (V)
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
5 Page 
A3230
Chopper-Stabilized Hall Effect Bipolar Switch
Package LH, 3-Pin SOT23-W
3.00 .118
2.70 .106
0.15 [.006] M C A B
3.04 .120
2.80 .110
A
1.49 .059
3 A NOM
B
B
Preliminary dimensions, for reference only
Dimensions in millimeters
U.S. Customary dimensions (in.) in brackets, for reference only
(reference JEDEC TO-236 AB, except case width and terminal tip-to-tip)
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
A Hall element (not to scale)
B Active Area Depth 0.28 [.011]
1
3X
0.10 [.004] C
3X
0.50
0.30
.020
.012
0.20 [.008] M C A B
0.95 .037
A
2
1.90 .075
2.10 .083
1.85 .073
0.96 .038
A NOM
SEATING C
PLANE
1.17 .046
0.75 .030
0.15 .006
0.00 .000
8º
0º
0.20 .008
0.08 .003
0.60 .024
0.25 .010
0.25 .010
SEATING PLANE
GAUGE PLANE
Package LH
3
Pin-out Drawings
Package UA
1
Terminal List
Name
VCC
VOUT
GND
2
Description
Connects power supply to chip
Output from circuit
Ground
12
3
Number
Package LH
1
Package UA
1
23
32
Allegro MicroSystems, Inc.
11
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet A3230.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| A3230 | Chopper-Stabilized Hall-Effect Bipolar Switch | Allegro MicroSystems |
| A32300DX | Integrator Series FPGAs |  Actel |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |