A3142LU [ALLEGRO]
Analog Circuit, 1 Func, PSIP3, MINI, PLASTIC, SIP-3;
| 型号： | A3142LU |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | Analog Circuit, 1 Func, PSIP3, MINI, PLASTIC, SIP-3 |
| 文件： | 总8页 (文件大小：145K) |
| 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 SOT89/TO-243AA transistor
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, and A3143xU are last-
time buy.
Suffix ‘E–’ .................. -40°C to +85°C
Suffix ‘L–’ ................ -40°C to +150°C
Storage Temperature Range,
Orders accepted until October 28, 2002.
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
Typ.
Characteristic
Symbol
Test Conditions
Operating
Min.
4.5
—
Max.
24
Units
V
Supply Voltage
VCC
—
Output Saturation Voltage
Output Leakage Current
Supply Current
VOUT(SAT)
IOUT = 20 mA, B > BOP
VOUT = 24 V, B < BRP
175
400
mV
µA
IOFF
ICC
tr
—
<1.010
—
B < BRP
(Output
OFF)
—
4.4
9.0mA
Output Rise Time
Output Fall Time
RL = 820 Ω, CL = 20 pF
RL = 820 Ω, CL = 20 pF
0.04
0.18
2.0
2.0
µs
µs
tf
—
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
501060 130180230 220280340 70 —
range 301075 115 180245
1045 130 75 125
350
520 280355
165 225 285
61025 190 152025 0 3205
over
operating
temp.
35
50—
—
450
330
430
BRP at TA = 25°C
175
over
operating
temp.
range
2055
range
1045
80 3055
2055
145
—
Bhys at TA = 25°C
80 3055
80 3055
80 2055
80 3055
—
over
operating
temp.
80 2055
—
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).
1 gauss (G) is exactly equal to 0.1 millitesla (mT).
*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, 2002 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
Allegro
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
Extensive applications information for Hall-effect sensors is available in:
• Hall-Effect IC Applications Guide, Application Note 27701;
• Hall-Effect Devices: Soldering, Gluing, Potting, Encapsulating, and Lead
Forming, Application Note 27703.1;
• Soldering of Through-Hole Hall-Sensor Dervices, Application Note 27703;
and
0.055"
1.39 mm
A
• Soldering of Surface-Mount Hall-Sensor Devices, Application Note 27703.2.
BRANDED
SURFACE
1
2
3
All are provided in Allegro Electronic Data Book, AMS-702. or at
www.allegromicro.com
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’
(SOT89/TO-243AA)
Dimensions in Inches
(for reference only)
Dimensions in Millimeters
(controlling dimensions)
0.181
0.173
0.072
0.064
0.063
0.055
4.60
4.40
1.83
1.62
1.60
1.40
0.0173
0.0138
0.44
0.35
0.102
0.090
0.090
0.084
2.60
2.29
2.29
2.13
0.167
0.155
4.25
3.94
2
3
1
2
3
1
0.0189
0.0142
0.0221
0.0173
0.48
0.36
0.047
1.20
0.035
0.89
0.56
0.44
0.059
1.50
BSC
BSC
0.118
3.00
BSC
BSC
Dwg. MA-009-3A in
Dwg. MA-009-3A mm
2.5
2.0
0.098
0.079
B
B
0.8
0.031
2.6
1.2
0.102
0.181
A
2
A
2
4.6
0.047
3
1
1
3
0.028
TYP
0.031
TYP
0.7
TYP
0.8
TYP
Pads 1, 2, 3, and A — Standard SOT-89 Layout
Pads 1, 2, 3, and B — Low-Stress Version
Pads 1, 2, and 3 only — Lowest Stress, But Not Self Aligning
Pads 1, 2, 3, and A — Standard SOT-89 Layout
Pads 1, 2, 3, and B — Low-Stress Version
Pads 1, 2, and 3 only — Lowest Stress, But Not Self Aligning
Dwg. MA-012-3 in
Dwg. MA-012-3 mm
NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown.
2. Supplied in bulk pack (500 pieces per bag) or add "TR" to part number for tape and reel.
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)
0.164
0.159
4.17
4.04
0.062
0.058
1.57
1.47
45°
45°
0.122
0.117
3.10
2.97
45°
45°
0.031
0.79
2.16
MAX
0.085
MAX
1
2
3
1
2
3
0.640
0.600
0.0173
0.0138
16.26
15.24
0.44
0.35
0.48
0.36
0.0189
0.0142
SEE NOTE
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.
The products described herein are manufactured under one or more
of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283;
5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719;
5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents
pending.
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 performance, reliability, or
3. Height does not include mold gate flash.
4. Supplied in bulk pack (500 pieces per bag).
manufacturability of its products. Before placing an order, the user is
cautioned to verify that the information being relied upon is current.
Allegro products are not authorized for use as critical components
in life-support appliances, devices, or systems without express written
approval.
The information included herein is believed to be accurate and
reliable. However, Allegro MicroSystems, Inc. assumes no responsibil-
ity for its use; nor for any infringements of patents or other rights of
third parties that may result from its use.
www.allegromicro.com
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
HALL-EFFECT SENSORS
UNIPOLAR HALL-EFFECT DIGITAL SWITCHES
Partial
Part
Operate
Point (G)
Release
Point (G)
Hysteresis
(G)
Replaces
and
Oper.
Number
Over Oper. Voltage & Temp. Range
Temp.
Packages
Comments
A3121x
A3122x
A3123x
A3141x
A3142x
A3143x
A3144x
220 to 500
260 to 430
230 to 470
30 to 175
115 to 245
205 to 355
35 to 450
80 to 410
120 to 360
160 to 330
10 to 145
60 to 190
150 to 300
25 to 430
60 to 150
70 to 140
70 to 140
20 to 80
30 to 80
30 to 80
>20
E, L
E, L
E, L
E, L
E, L
E, L
E, L
E
LT, UA
LT, UA
LT, UA
LT, UA
LT, UA
LT, UA
LT, UA
LT, UA
LH, LT, UA
3019, 3113, 3119
3040, 3140
3020, 3120
2-wire operation
A3161E <160 (Typ 130) >30 (Typ 110)
A3240x
5 to 80
Typ 10
<50 (Typ 35)
>5 (Typ 25)
E, L
chopper stabilized
2-wire, chopper stabilized,
A3361E
<125
>405
to
to
30E
30E
LH,
LH,
LT,
UA
output normally high
2-wire, chopper stabilized,
A3362E
<125
>405
LT,
UA
output normally low
MICROPOWER OMNIPOLAR HALL-EFFECT DIGITAL SWITCHES
Partial
Part
Operate
Points (G)
Release
Points (G)
Hysteresis
(G)
Average
Supply
Oper.
Number
Over Oper. Voltage & Temp. Range
Temp.
Packages
Current (µA)
A3209E
A3210E
A3212E
>-60, <60
>-60, <60
>-55, <55
<-5, >5
<-5, >5
<-10, >10
Typ 7.7
Typ 7.7
Typ. 8
E
E
E
LH, UA
LH, UA
LH, UA
<425 (Typ 145)
<60 (Typ 8.8)
<10 (Typ 4.2)
BIPOLAR HALL-EFFECT DIGITAL SWITCHES
Partial
Part
Operate
Point (G)
Release
Point (G)
Hysteresis
(G)
Replaces
and
Oper.
Number
Over Oper. Voltage & Temp. Range
Temp.
Packages
Comments
UGx3132 <95 (Typ 32) >-95 (Typ -20) >30 (Typ 52)
UGx3133 <75 (Typ 32) >-75 (Typ -20) >30 (Typ 52)
K, L, S
K, L, S
E, L
LT, UA
LT, UA
LT, UA
3030, 3130, 3131
UGx3134
-40 to 50
-50 to 40
5 to 55
Typ 20
A3260x <30 (Typ 10) >-30 (Typ -10)
E, L
LH, LT, UA
2 wire, chopper stabilized
Notes: 1) Typical data is at T = +25°C and nominal operating voltage.
A
2) “x” = Operating Temperature Range [suffix letter or (prefix)]: S (UGN) = -20°C to +85°C, E = -40°C to +85°C,
J = -40°C to +115°C, K (UGS) = -40°C to +125°C, L (UGL) = -40°C to +150°C.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
相关型号：
©2020 ICPDF网 联系我们和版权申明