A3142EU [SANKEN]
Analog Circuit, 1 Func, PSIP3, MINI, PLASTIC, SIP-3;
| 型号： | A3142EU |
| 厂家： | 
SANKEN ELECTRIC |
| 描述： | Analog Circuit, 1 Func, PSIP3, MINI, PLASTIC, SIP-3 |
| 文件： | 总8页 (文件大小：138K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
3144 THRU
3141
SENSITIVE HALL-EFFECT SWITCHES
FOR HIGH-TEMPERATURE OPERATION
These Hall-effect switches are monolithic integrated circuits with
tighter magnetic specifications, designed to operate continuously over
extended temperatures to +150°C, and are more stable with both
temperature and supply voltage changes. The unipolar switching
characteristic makes these devices ideal for use with a simple bar or rod
magnet. The four basic devices (3141, 3142, 3143, and 3144) are
identical except for magnetic switch points.
Each device includes a voltage regulator for operation with supply
voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic
Hall-voltage generator, temperature compensation circuitry, small-
signal amplifier, Schmitt trigger, and an open-collector output to sink
up to 25 mA. With suitable output pull up, they can be used with
bipolar or CMOS logic circuits. The A3141– and A3142– are im-
proved replacements for the UGN/UGS3140–; the A3144– is the
improved replacement for the UGN/UGS3120–.
V
CC
1
2
3
The first character of the part number suffix determines the device
operating temperature range. Suffix ‘E–’ is for the automotive and
industrial temperature range of -40°C to +85°C. Suffix ‘L–’ is for the
automotive and military temperature range of -40°C to +150°C. Three
package styles provide a magnetically optimized package for most
applications. Suffix ‘–LT’ is a miniature SOT-89/TO-243AA transis-
tor package for surface-mount applications; suffix ‘–U’ is a three-lead
plastic mini-SIP, while suffix ‘–UA’ is a three-lead ultra-mini-SIP.
Dwg. PH-003A
Pinning is shown viewed from branded side.
FEATURES and BENEFITS
ABSOLUTE MAXIMUM RATINGS
■ Superior Temp. Stability for Automotive or Industrial Applications
■ 4.5 V to 24 V Operation … Needs Only An Unregulated Supply
■ Open-Collector 25 mA Output … Compatible with Digital Logic
■ Reverse Battery Protection
■ Activate with Small, Commercially Available Permanent Magnets
■ Solid-State Reliability
at T = +25°C
A
Supply Voltage, VCC ............................ 28 V
Reverse Battery Voltage, VRCC ........... -35 V
Magnetic Flux Density, B .......... Unlimited
Output OFF Voltage, VOUT .................. 28 V
Reverse Output Voltage, VOUT ........... -0.5 V
Continuous Output Current, IOUT ...... 25 mA
Operating Temperature Range, TA
■ Small Size
■ Resistant to Physical Stress
The A3141xU, A3142xU, A3143xU,
and A3144xU are not for new design.
Suffix ‘E–’ .................. -40°C to +85°C
Suffix ‘L–’ ................ -40°C to +150°C
Storage Temperature Range,
TS .............................. -65°C to +170°C
Always order by complete part number, e.g., A3141ELT .
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
FUNCTIONAL BLOCK DIAGRAM
1
V
CC
REG.
3
2
OUTPUT
GROUND
X
Dwg. FH-005-2
ELECTRICAL CHARACTERISTICS at VCC = 8 V over operating temperature range.
Limits
Characteristic
Symbol
Test Conditions
Operating
Min.
Typ.
Max.
Units
V
Supply Voltage
VCC
4.5
24
400
10
Output Saturation Voltage
Output Leakage Current
Supply Current
VOUT(SAT)
IOUT = 20 mA, B > BOP
VOUT = 24 V, B < BRP
B < BRP (Output OFF)
RL = 820 Ω, CL = 20 pF
RL = 820 Ω, CL = 20 pF
175
<1.0
4.4
mV
µA
IOFF
ICC
tr
9.0
2.0
2.0
mA
µs
Output Rise Time
Output Fall Time
0.04
0.18
tf
µs
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
Part Numbers*
A3141–
A3142–
A3143–
A3144–
Min. Typ. Max.
Characteristic
Min. Typ. Max.
Min. Typ. Max.
Min. Typ. Max.
BOP at TA = 25°C
50
30
10
10
20
20
100
100
45
160
175
130
145
80
130 180
115 180
75 125
60 125
230
245
175
190
80
220 280
205 280
165 225
150 225
340
355
285
300
80
70
35
50
25
20
20
350
450
330
430
over operating temp. range
BRP at TA = 25°C
over operating temp. range
Bhys at TA = 25°C
over operating temp. range
45
55
30
30
55
55
30
30
55
55
55
55
55
80
80
80
NOTES: Typical values are at TA = +25°C and VCC = 8 V.
BOP = operate point (output turns ON); BRP = release point (output turns OFF); Bhys = hysteresis (BOP - BRP).
*Complete part number includes a suffix to identify operating temperature range (E- or L-) and package type ( -LT, -U, or -UA).
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, 1999, Allegro MicroSystems, Inc.
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
TYPICAL OPERATING CHARACTERISTICS
A3142– SWITCH POINTS
OUTPUT SATURATION VOLTAGE
300
400
300
200
I
= 20 mA
OUT
V
= 8 V
V
= 4.5–24 V
CC
CC
200
OPERATE POINT
100
RELEASE POINT
100
0
-50
0
150
100
125
-25
0
25
50
75
-50
-25
0
25
50
75
100
125
150
AMBIENT TEMPERATURE IN °C
AMBIENT TEMPERATURE IN °C
Dwg. GH-044
Dwg. GH-040-1
SUPPLY CURRENT
SUPPLY CURRENT
10
8.0
6.0
4.0
7.0
6.0
5.0
4.0
V
= 8 V
CC
B ≥ B
OP
B ≥ B
OP
B ≤ B
RP
T
= +25°C
2.0
0
A
B ≤ B
RP
0
5
10
15
20
25
125
150
100
-50
-25
0
25
50
75
SUPPLY VOLTAGE IN VOLTS
AMBIENT TEMPERATURE IN °C
Dwg. GH-041-1
Dwg. GH-039-1
* Complete part number includes a suffix denoting operating temperature range (E- or L-) and package type ( -LT, -U, or -UA).
www.allegromicro.com
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
TYPICAL OPERATING CHARACTERISTICS (cont.)
SENSOR LOCATIONS
(±0.005” [0.13 mm] die placement)
CHANGE IN OPERATE POINT
Suffix “LT”
ACTIVE AREA DEPTH
20
0.0305"
0.089"
0.775 mm
2.26 mm
NOM
15
0.043"
1.09 mm
T
= +25°C
A
A
10
1
2
3
5.0
Dwg. MH-008-2D
0
Suffix “U”
ACTIVE AREA DEPTH
0.0165"
0.42 mm
NOM
0.091"
2.31 mm
-5.0
0
5
10
15
20
25
SUPPLY VOLTAGE IN VOLTS
0.070"
Dwg. GH-042-1
1.78 mm
OPERATION
A
The output of these devices (pin 3) switches low when the magnetic field
at the Hall sensor exceeds the operate point threshold (BOP). At this point, the
output voltage is VOUT(SAT). When the magnetic field is reduced to below the
release point threshold (BRP), the device output goes high. The difference in
the magnetic operate and release points is called the hysteresis (Bhys) of the
device. This built-in hysteresis allows clean switching of the output even in
the presence of external mechanical vibration and electrical noise.
BRANDED
SURFACE
1
2
3
Dwg. MH-002-2C
Suffix “UA”
ACTIVE AREA DEPTH
0.0195"
0.50 mm
NOM
0.082"
2.07 mm
0.055"
1.39 mm
A
BRANDED
SURFACE
1
2
3
Dwg. MH-011-10A
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
PACKAGE DESIGNATOR ‘LT’
(SOT-89/TO-243AA)
Dimensions in Inches
(for reference only)
0.181
0.173
0.072
0.064
0.063
0.055
0.0173
0.0138
0.102
0.090
0.090
0.084
0.167
0.155
2
3
1
0.0189
0.0142
0.0221
0.0173
0.047
0.035
0.059
BSC
0.118
BSC
Dwg. MA-009-3A in
Dimensions in Millimeters
(controlling dimensions)
4.60
4.40
1.83
1.62
1.60
1.40
0.44
0.35
2.60
2.29
2.29
2.13
4.25
3.94
2
3
1
0.48
0.36
1.20
0.89
0.56
0.44
1.50
BSC
3.00
BSC
Dwg. MA-009-3A mm
NOTES: 1. Tolerances on package height and width represent allowable mold offsets. Dimensions given are
measured at the widest point (parting line).
2. Exact body and lead configuration at vendor’s option within limits shown.
3. Height does not include mold gate flash.
www.allegromicro.com
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
PACKAGE DESIGNATOR ‘U’
Dimensions in Inches
(controlling dimensions)
Dimensions in Millimeters
(for reference only)
0.183
0.178
4.65
4.52
0.063
0.059
1.60
1.50
0.181
0.176
4.60
4.47
45°
45°
0.018
0.46
0.086
2.18
1
2
3
1
2
3
MAX
MAX
0.0173
0.0138
15.24
14.23
0.44
0.35
0.600
0.560
0.0189
0.0142
0.48
0.36
SEE NOTE
SEE NOTE
0.050
0.100
1.27
2.54
Dwg. MH-003E in
Dwg. MH-003E mm
Devices in the ‘U’ package are
NOT RECOMMENDED FOR NEW DESIGN
NOTES: 1. Tolerances on package height and width represent allowable mold offsets. Dimensions given are measured
at the widest point (parting line).
2. Exact body and lead configuration at vendor’s option within limits shown.
3. Height does not include mold gate flash.
4. Recommended minimum PWB hole diameter to clear transition area is 0.035" (0.89 mm).
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
PACKAGE DESIGNATOR ‘UA’
Dimensions in Inches
(controlling dimensions)
Dimensions in Millimeters
(for reference only)
4.17
4.04
0.164
0.159
1.57
1.47
0.062
0.058
45°
45°
3.10
2.97
0.122
0.117
45°
45°
0.79
0.031
2.16
MAX
1
2
3
0.085
MAX
1
2
3
16.26
15.24
0.44
0.35
0.640
0.600
0.0173
0.0138
0.48
0.36
SEE NOTE
0.0189
0.0142
SEE NOTE
1.27
BSC
0.050
BSC
Dwg. MH-014E mm
Dwg. MH-014E in
NOTES: 1. Tolerances on package height and width represent allowable mold offsets. Dimensions given are
measured at the widest point (parting line).
2. Exact body and lead configuration at vendor’s option within limits shown.
3. Height does not include mold gate flash.
www.allegromicro.com
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
Allegro MicroSystems, Inc. reserves the right to make, from time to time,
such departures from the detail specifications as may be required to permit
improvements in the design of its products.
The information included herein is believed to be accurate and reliable.
However, Allegro MicroSystems, Inc. assumes no responsibility for its use;
nor for any infringements of patents or other rights of third parties which
may result from its use.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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