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PDF ( 数据手册 , 数据表 ) A3142-LT

零件编号 A3142-LT
描述 SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
制造商 Allegro MicroSystems
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A3142-LT 数据手册, 描述, 功能
3141 THRU
3144
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.
V
CC
12
3
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–.
Dwg. PH-003A
Pinning is shown viewed from branded side.
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.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Supply Voltage, VCC ............................ 28 V
Reverse
Battery
Voltage,
V
RCC
...........
-35
V
Magnetic Flux Density, B .......... Unlimited
Output OFF Voltage, V
OUT
..................
28 V
Reverse Output Voltage, VOUT ........... -0.5 V
Continuous Output Current, IOUT ...... 25 mA
Operating Temperature Range, T
A
Suffix ‘E–’ .................. -40°C to +85°C
Suffix ‘L–’ ................ -40°C to +150°C
Storage Temperature Range,
TS .............................. -65°C to +170°C
FEATURES and BENEFITS
I Superior Temp. Stability for Automotive or Industrial Applications
I 4.5 V to 24 V Operation … Needs Only An Unregulated Supply
I Open-Collector 25 mA Output … Compatible with Digital Logic
I Reverse Battery Protection
I Activate with Small, Commercially Available Permanent Magnets
I Solid-State Reliability
I Small Size
I Resistant to Physical Stress
Always order by complete part number, e.g., A3141ELT .







A3142-LT pdf, 数据表
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
HALL-EFFECT SENSORS SELECTION GUIDE
Partial Part Avail. Oper.
Characteristics at TA = +25°C
Number
Temp.
BOP(max) BRP(min) Bhys(typ)
Features
Notes
3240
3210
3361
3362
3161
3141
3235
5140
3142
3143
3144
3122
3123
3121
3150
HALL-EFFECT UNIPOLAR SWITCHES in order of BOP and Bhys
E/L
+50 +5.0
10 chopper stabilized
E ±70 ±5.0 7.7 micropower, chopper stabilized
E
+120
+50
5.0* 2-wire, chopper stabilized
E
+120
+50
5.0* 2-wire, chopper stabilized
E
+160
+30
20 2-wire
E/L
+160
+10
55
S
+175
+25
15* output 1
-25 -175 15* output 2
E
+200
+50
55 300 mA output
E/L
+230
+75
55
E/L
+340
+165
55
E/L
+350
+50
55
E/L
+400
+140
105
E/L
+440
+180
105
E/L
+450
+125
105
J
+40 to +850
20 programmable, chopper stabilized
1
2
2
1, 3
1
3260
3280
3134
3133
3281
3132
3187
3177
3625
3626
3195
3197
3175
3188
3283
3189
3275
3185
HALL-EFFECT LATCHES & BIPOLAR SWITCHES† in order of BOP and Bhys
E/L
E/L
E/L
K/L/S
E/L
K/L/S
E/L
S
S
S
E/L
L
S
E/L
E/L
E/L
S
+30
+40
+50
+75
+90
+95
+150
+150
+150
+150
+160
+160
+170
+180
+180
+230
+250
-30
-40
-50
-75
-90
-95
-150
-150
-150
-150
-160
-160
-170
-180
-180
-230
-250
20
45
27
52
100
52
100*
200
200
200
220
230
200
200*
300
100*
100*
bipolar, chopper stabilized
chopper stabilized
bipolar switch
bipolar switch
chopper stabilized
bipolar switch
900 mA outputs
400 mA outputs
chopper stabilized
E/L
+270
-270
340*
1, 3, 5
1, 3, 5
1, 4
1
5
Operating Temperature Ranges:
S = -20°C to +85°C, E = -40°C to +85°C, J = -40°C to +115°C, K = -40°C to +125°C, L = -40°C to +150°C
Notes 1. Protected.
2. Output 1 switches on south pole, output 2 switches on north pole for 2-phase, bifilar-wound, unipolar-driven brushless dc
motor control.
3. Power driver output.
4. Active pull down.
5. Complementary outputs for 2-phase bifilar-wound, unipolar-driven brushless dc motor control.
* Minimum.
Latches will not switch on removal of magnetic field; bipolar switches may switch on removal of field but require field reversal for
reliable operation over operating temperature range.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000














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