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3132 AND 3133
ULTRA-SENSITIVE BIPOLAR HALL-EFFECT SWITCHES
These Hall-effect switches are designed for magnetic actuation using a bipolar magnetic field, i.e., a north-south alternating field. They combine extreme magnetic sensitivity with excellent stability over varying temperature and supply voltage. The high sensitivity permits their use with multi-pole ring magnets over relatively large distances. Each device includes a voltage regulator, quadratic Hall voltage generator, temperature stability circuit, signal amplifier, Schmitt trigger, and open-collector output on a single silicon chip. The on-board regulator permits operation with supply voltages of 4.5 to 24 V. The switch output can sink up to 25 mA. With suitable output pull up, they can be used directly with bipolar or MOS logic circuits.
Data Sheet 27631.2B
V
X
CC
1
2
3
GROUND
Dwg. PH-003A
OUTPUT
SUPPLY
The three package styles available provide a magnetically optimized package for most applications. Suffix `LT' is a miniature SOT-89/TO243AA transistor package for surface-mount applications; suffixes `U', and `UA' feature wire leads for through-hole mounting. Prefix `UGN' devices are rated for continuous operation over the temperature range of -20C to +85C, prefix `UGS' devices over an extended range of -40C to +125C, and prefix `UGL' devices over the range of -40C to +150C.
Pinning is shown viewed from branded side.
FEATURES
I 4.5 V to 24 V Operation I Reverse Battery Protection I Superior Temperature Stability
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC . . . . . . . . . . . . . 25 V Reverse Battery Voltage, VRCC . . . . -35 V Magnetic Flux Density, B . . . . Unlimited Output OFF Voltage, VOUT . . . . . . . . 25 V Continuous Output Current, IOUT . 25 mA Operating Temperature Range, TA Prefix UGL . . . . . . . -40C to +150C Prefix UGN . . . . . . . . -20C to +85C Prefix UGS . . . . . . . -40C to +125C Storage Temperature Range, TS . . . . . . . . . . . . . . . -65C to +150C
I Superior Supply Voltage Stability I Activate with Multi-Pole Ring Magnets I Solid-State Reliability I Small Size I Constant Output Amplitude I Resistant to Physical Stress
Always order by complete part number including prefix and suffix, e.g., UGN3132LT .
3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
FUNCTIONAL BLOCK DIAGRAM
1
VCC
REG.
X
3
OUTPUT GROUND
2
Dwg. FH-005-2
ELECTRICAL CHARACTERISTICS at TA = +25C
Limits Characteristic Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Fall Time Symbol VCC VOUT(SAT) IOFF ICC tr tf Test Conditions Operating IOUT = 20 mA, B BOP VOUT = 24 V, B BRP VCC = 24 V, B BRP VCC = 12 V, RL = 820 , CL = 20 pF VCC = 12 V, RL = 820 , CL = 20 pF Min. 4.5 -- -- -- -- -- Typ. -- 145 <1.0 4.3 0.04 0.18 Max. 24 400 10 9.0 2.0 2.0 Units V mV A mA s s
MAGNETIC CHARACTERISTICS over operating temperature and voltage range.
Limits Characteristic Operate Point Symbol BOP Device Type* 3132 3133 Release Point BRP 3132 3133 Hysteresis Bhys Both Min. -- -- -95 -75 30 Typ. 32 32 -20 -20 52 Max. 95 75 -- -- -- Units G G G G G
NOTE: As used here, negative flux densities are defined as less than zero (algebraic convention.) Typical values are at TA = +25C and VCC = 12 V. * Complete part number includes a prefix denoting operating temperature range (UGL, UGN, or UGS) and a suffix denoting package type (LT, U, or UA).
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright (c) 1996,1999, Allegro MicroSystems, Inc.
3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
TYPICAL CHARACTERISTICS
40
40
OPERATE POINT 20
OPERATE POINT
20
SWITCH POINT IN GAUSS
0
VCC = 12 V I OUT = 20 mA
SWITCH POINT IN GAUSS
0
T A = 25C I OUT = 20 mA
RELEASE POINT -20
-20 RELEASE POINT
-40 -50
-25
0
25
50
75
100
125
-40 4.0
8.0
12
16
20
24
28
Dwg. GH-021
AMBIENT TEMPERATURE IN C
Dwg. GH-022
SUPPLY VOLTAGE IN VOLTS
200
6.0
I OUT = 20 mA
B B OP
VCC = 12 V
SATURATION VOLTAGE IN mV
175
SUPPLY CURRENT IN mA
5.0
150
4.0 B B RP
125
100 -50
-25
0
25
50
75
100
125
3.0 -50
-25
0
25
50
75
100
125
AMBIENT TEMPERATURE IN C
Dwg. GH-024
AMBIENT TEMPERATURE IN C
Dwg. GH-023
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3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
SENSOR LOCATIONS
(0.005" [0.13mm] die placement)
SUFFIX "LT"
ACTIVE AREA DEPTH 0.030" 0.76 mm NOM
0.089" 2.26 mm
0.043" 1.09 mm
A
1 2 3
Dwg. MH-008-2C
SUFFIX "U"
ACTIVE AREA DEPTH 0.016" 0.41 mm NOM
SUFFIX "UA"
0.091" 2.31 mm
ACTIVE AREA DEPTH 0.019" 0.48 mm NOM
0.070" 1.78 mm
0.082" 2.07 mm
A
BRANDED SURFACE 1 2 3
A
BRANDED SURFACE 1 2 3
0.055" 1.39 mm
Dwg. MH-002-2B
Dwg. MH-011-10
Allegro
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
PACKAGE DESIGNATOR `LT'
(SOT-89/TO-243AA)
Dimensions in Inches (for reference only)
0.181 0.173 0.072 0.064 0.167 0.155 0.102 0.090
0.063 0.055
0.0173 0.0138
1
2
3
0.090 0.084
0.047 0.035 0.059
BSC
0.0189 0.0142 0.0221 0.0173 0.118
BSC
Dwg. MA-009-3A in
Dimensions in Millimeters (controlling dimensions)
4.60 4.40 1.83 1.62 4.25 3.94 2.60 2.29
1.60 1.40
0.44 0.35
1
2
3
2.29 2.13
1.20 0.89 1.50
BSC
0.48 0.36 0.56 0.44 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.
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3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
PACKAGE DESIGNATOR `U'
Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only)
0.183 0.178 0.063 0.059
4.65 4.52 1.60 1.50
0.181 0.176 45 0.086
MAX
4.60 4.47 45 2.18
MAX
1
2
3
0.018
1
2
3
0.46
0.600 0.560 0.0189 0.0142
SEE NOTE
0.0173 0.0138
15.24 14.23 0.48 0.36
SEE NOTE
0.44 0.35
0.050 0.100
Dwg. MH-003E in
1.27 2.54
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). 5. Where no tolerance is specified, dimension is nominal.
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
PACKAGE DESIGNATOR `UA'
Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only)
0.164 0.159
4.17 4.04
45
0.062 0.058
45
1.57 1.47
0.122 0.117 45 0.031
3.10 2.97 45 0.79
0.085
MAX
1
2
3
2.16
MAX
1
2
3
0.640 0.600
0.0173 0.0138
16.26 15.24
0.44 0.35
SEE NOTE
0.0189 0.0142
SEE NOTE
0.48 0.36
0.050
BSC
Dwg. MH-014E in
1.27
BSC
Dwg. MH-014E 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. 4. Recommended minimum PWB hole diameter to clear transition area is 0.035" (0.89 mm). 5. Where no tolerance is specified, dimension is nominal.
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 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 responsibility for its use; nor for any infringements of patents or other rights of third parties that may result from its use.
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3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES
HALL-EFFECT SENSORS SELECTION GUIDE
Partial Part Number 3240 3210 3361 3362 3161 3141 3235 5140 3142 3143 3144 3122 3123 3121 3150 Avail. Oper. Characteristics at TA = +25C Temp. BOP(max) BRP(min) Bhys(typ) Features HALL-EFFECT UNIPOLAR SWITCHES in order of BOP and Bhys E/L E E E E E/L S E E/L E/L E/L E/L E/L E/L J +50 70 +120 +120 +160 +160 +175 -25 +200 +230 +340 +350 +400 +440 +450 +40 to +850 +5.0 5.0 +50 +50 +30 +10 +25 -175 +50 +75 +165 +50 +140 +180 +125 - 10 7.7 5.0* 5.0* 20 55 15* 15* 55 55 55 55 105 105 105 20 chopper stabilized micropower, chopper stabilized 2-wire, chopper stabilized 2-wire, chopper stabilized 2-wire output 1 output 2 300 mA output Notes 1
2 2 1, 3
programmable, chopper stabilized
1
HALL-EFFECT LATCHES & BIPOLAR SWITCHES in order of BOP and Bhys 3260 E/L +30 -30 20 bipolar, chopper stabilized 3280 E/L +40 -40 45 chopper stabilized 3134 E/L +50 -50 27 bipolar switch 3133 K/L/S +75 -75 52 bipolar switch 3281 E/L +90 -90 100 chopper stabilized 3132 K/L/S +95 -95 52 bipolar switch 3187 E/L +150 -150 100* 3177 S +150 -150 200 3625 S +150 -150 200 900 mA outputs 1, 3, 5 3626 S +150 -150 200 400 mA outputs 1, 3, 5 3195 E/L +160 -160 220 1, 4 3197 L +160 -160 230 1 3175 S +170 -170 200 3188 E/L +180 -180 200* 3283 E/L +180 -180 300 chopper stabilized 3189 E/L +230 -230 100* 3275 S +250 -250 100* 5 3185 E/L +270 -270 340* Operating Temperature Ranges: S = -20C to +85C, E = -40C to +85C, J = -40C to +115C, K = -40C to +125C, L = -40C to +150C 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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