Datasheet 3132, 3133 Datasheet (ALLEGRO)

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X

V

CC

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

1

SUPPLY

Pinning is shown viewed from branded side.

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, VCC. . . . . . . . . . . . . 25 V

Reverse Battery Voltage, V

Magnetic Flux Density, B . . . . Unlimited

Output OFF Voltage, V
Continuous Output Current, I
Operating Temperature Range, T

Prefix UGL . . . . . . . -40°C to +150°C

Prefix UGN . . . . . . . . -20°C to +85°C

Prefix UGS . . . . . . . -40°C to +125°C

Storage Temperature Range,

TS. . . . . . . . . . . . . . . -65°C to +150°C

GROUND

OUT

32

OUTPUT

Dwg. PH-003A

. . . . -35 V

RCC

. . . . . . . . 25 V

. 25 mA

OUT

A

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

-20°C to +85°C, prefix ‘UGS’ devices over an extended range of -40°C
to +125°C, and prefix ‘UGL’ devices over the range of -40°C to +150°C.

FEATURES

■ 4.5 V to 24 V Operation

■ Reverse Battery Protection

■ Superior Temperature Stability

■ Superior Supply Voltage Stability

■ Activate with Multi-Pole Ring Magnets

■ Solid-State Reliability

■ Small Size

■ Constant Output Amplitude

■ Resistant to Physical Stress

Always order by complete part number

including prefix and suffix, e.g., UGN3132LT .

3132

AND

3133

BIPOLAR
HALL-EFFECT SWITCHES

1

REG.

FUNCTIONAL BLOCK DIAGRAM

V

CC

X

3

OUTPUT

2

GROUND

Dwg. FH-005-2

ELECTRICAL CHARACTERISTICS at TA = +25°C

Limits

Characteristic Symbol Test Conditions Min. Typ. Max. Units

Supply Voltage V

Output Saturation Voltage V

Output Leakage Current I

Supply Current I

Output Rise Time t

Output Fall Time t

OUT(SAT)

CC

OFF

CC

r

f

Operating 4.5 — 24 V

I

= 20 mA, B ≥ B

OUT

V

= 24 V, B ≤ B

OUT

VCC = 24 V, B ≤ B

VCC = 12 V, RL = 820 Ω, CL = 20 pF — 0.04 2.0 µs

VCC = 12 V, RL = 820 Ω, CL = 20 pF — 0.18 2.0 µs

OP

RP

RP

— 145 400 mV

— <1.0 10 µA

— 4.3 9.0 mA

MAGNETIC CHARACTERISTICS over operating temperature and voltage range.

Limits

Characteristic Symbol Device Type* Min. Typ. Max. Units

Operate Point B

Release Point B

OP

RP

3132 — 32 95 G

3133 — 32 75 G

3132 -95 -20 — G

3133 -75 -20 — G

Hysteresis B

NOTE: As used here, negative flux densities are defined as less than zero (algebraic convention.)

Typical values are at TA = +25°C and 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).

CC

hys

= 12 V.

Both 30 52 — G

115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
Copyright © 1996,1999, Allegro MicroSystems, Inc.

HALL-EFFECT SWITCHES

TYPICAL CHARACTERISTICS

3132

AND

3133

BIPOLAR

40

20

0

RELEASE POINT

-20

SWITCH POINT IN GAUSS

-40

-50

-25

AMBIENT TEMPERATURE IN °C

200

I = 20 mA

OUT

175

OPERATE POINT

0 25 50 75

V = 12 V

CC

I = 20 mA

OUT

100

Dwg. GH-022

125

40

OPERATE POINT

20

0

-20

SWITCH POINT IN GAUSS

-40

4.0

RELEASE POINT

8.0

SUPPLY VOLTAGE IN VOLTS

6.0

5.0

12 16 20

B ≥ B

OP

T = 25°C

A

I = 20 mA

OUT

24

Dwg. GH-021

V = 12 V

CC

28

150

125

SATURATION VOLTAGE IN mV

100

-50

-25

0 25 50 75

AMBIENT TEMPERATURE IN °C

www.allegromicro.com

100

Dwg. GH-024

125

4.0

SUPPLY CURRENT IN mA

3.0

-50

-25

AMBIENT TEMPERATURE IN °C

0 25 50 75

B ≤ B

RP

100

Dwg. GH-023

125

3132

AND

3133

BIPOLAR
HALL-EFFECT SWITCHES

(±0.005” [0.13mm] die placement)

ACTIVE AREA DEPTH

SENSOR LOCATIONS

SUFFIX “LT”

0.030"

0.76 mm
NOM

0.089"

2.26 mm

A

0.043"

1.09 mm

SUFFIX “U” SUFFIX “UA”

ACTIVE AREA DEPTH

0.016"

0.41 mm
NOM

BRANDED
SURFACE

A

1 32

0.091"

2.31 mm

0.070"

1.78 mm

1 32

Dwg. MH-008-2C

ACTIVE AREA DEPTH

0.019"

0.48 mm
NOM

BRANDED
SURFACE

A

1 32

0.082"

2.07 mm

0.055"

1.39 mm

Dwg. MH-002-2B

Dwg. MH-011-10

Allegro

115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]

HALL-EFFECT SWITCHES

PACKAGE DESIGNATOR ‘LT’

(SOT-89/TO-243AA)

Dimensions in Inches

(for reference only)

3132

AND

3133

BIPOLAR

0.167

0.155

0.047

0.035

0.059

BSC

0.181

0.173

0.072

0.064

0.102

1

23

0.118

BSC

0.090

0.0189

0.0142

0.0221

0.0173

Dimensions in Millimeters

(controlling dimensions)

4.60

4.40

1.83

1.62

0.063

0.055

0.090

0.084

1.60

1.40

0.0173

0.0138

Dwg. MA-009-3A in

0.44

0.35

4.25

3.94

1.20

0.89

1.50

BSC

1

23

3.00

BSC

2.60

2.29

0.48

0.36

0.56

0.44

2.29

2.13

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

3132

AND

3133

BIPOLAR
HALL-EFFECT SWITCHES

PACKAGE DESIGNATOR ‘U’

0.181

0.176

0.600

0.560

Dimensions in Inches

(controlling dimensions)

0.183

0.178

0.086

MAX

1 2 3

0.063

0.059

0.018

0.0173

0.0138

45°

4.60

4.47

15.24

14.23

Dimensions in Millimeters

(for reference only)

4.65

4.52

2.18

MAX

1 2 3

1.60

1.50

45°

0.46

0.44

0.35

0.48

0.36

SEE NOTE

0.100

0.050

0.0189

0.0142

SEE NOTE

1.27

2.54

Dwg. MH-003E in

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 [phone]

Dwg. MH-003E mm

HALL-EFFECT SWITCHES

PACKAGE DESIGNATOR ‘UA’

3132

AND

3133

BIPOLAR

45°

0.122

0.117

0.640

0.600

Dimensions in Inches

(controlling dimensions)

0.164

0.159

0.085

123

MAX

0.062

0.058

0.031

0.0173

0.0138

45°

Dimensions in Millimeters

(for reference only)

4.17

4.04

45°

3.10

2.97

2.16

123

MAX

16.26

15.24

1.57

1.47

45°

0.79

0.44

0.35

SEE NOTE

0.050

BSC

0.0189

0.0142

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.

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.

SEE NOTE

1.27

BSC

0.48

0.36

Dwg. MH-014E mm

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.

www.allegromicro.com

3132

AND

3133

BIPOLAR
HALL-EFFECT SWITCHES

HALL-EFFECT SENSORS SELECTION GUIDE

Partial Part Avail. Oper. Characteristics at TA = +25°C
Number Temp. B

HALL-EFFECT UNIPOLAR SWITCHES in order of B

3240 E/L +50 +5.0 10 chopper stabilized 1
3210 E ±70 ±5.0 7.7 micropower, chopper stabilized
3361 E +120 +50 5.0* 2-wire, chopper stabilized
3362 E +120 +50 5.0* 2-wire, chopper stabilized
3161 E +160 +30 20 2-wire
3141 E/L +160 +10 55
3235 S +175 +25 15* output 1 2

5140 E +200 +50 55 300 mA output 1, 3
3142 E/L +230 +75 55
3143 E/L +340 +165 55
3144 E/L +350 +50 55
3122 E/L +400 +140 105
3123 E/L +440 +180 105
3121 E/L +450 +125 105
3150 J +40 to +850 – 20

OP(max)

-25 -175 15* output 2 2

B

RP(min)

B

hys(typ)

Features Notes

and B

OP

programmable, chopper stabilized

hys

1

HALL-EFFECT LATCHES & BIPOLAR SWITCHES† in order of B

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 [phone]*
3177 S [phone]
3625 S [phone] mA outputs 1, 3, 5
3626 S [phone] mA outputs 1, 3, 5
3195 E/L [phone], 4
3197 L [phone]
3175 S [phone]
3188 E/L [phone]*
3283 E/L [phone] chopper stabilized
3189 E/L [phone]*
3275 S [phone]* 5
3185 E/L [phone]*

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.

OP

and B

hys

115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]