3132

3132 ALLEGRO

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Technical content

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 regula- tor 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. The three package styles available provide a magnetically optimized package for most applications. Suffix ‘LT’ is a miniature SOT-89/TO- 243AA 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. ULTRA-SENSITIVE BIPOLAR HALL-EFFECT SWITCHES

FEATURES

I 4.5 V to 24 V Operation I Reverse Battery Protection I Superior Temperature Stability 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 Data Sheet27631.2B ABSOLUTE MAXIMUM RATINGS Reverse Battery Voltage, VRCC . . . . -35 V Magnetic Flux Density, B . . . . Unlimited Continuous Output Current, IOUT . 25 mA Operating Temperature Range, TA Storage Temperature Range, including prefix and suffix, e.g., UGN3132LT . Pinning is shown viewed from branded side.

3132 AND

Dwg. PH-003A 1SUPPLY VCC GROUND OUTPUT X

3132 AND 3133

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000 FUNCTIONAL BLOCK DIAGRAM VCC X REG. Dwg. FH-005-2 GROUND OUTPUT3 Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Supply Voltage V CC Operating 4.5 — 24 V Output Saturation Voltage V OUT(SAT) IOUT = 20 mA, B ≥ BOP — 145 400 mV Output Leakage Current I OFF VOUT = 24 V, B ≤ BRP — <1.010 µA Supply Current I CC VCC = 24 V, B ≤ BRP — 4.3 9.0mA Output Rise Time t r VCC = 12 V, RL = 820 Ω, CL = 20 pF — 0.04 2.0 µs Output Fall Time t f VCC = 12 V, RL = 820 Ω, CL = 20 pF — 0.18 2.0 µs Limits Characteristic Symbol Device Type* Min. Typ. Max. Units Operate Point B OP 3132 — 32 95 G 3133 — 32 75 G Release Point B RP 3132 -95 -20— G 3133 -75 -20— G Hysteresis B hys Both 3052 — G NOTE: As used here, negative flux densities are defined as less than zero (algebraic convention.) Typical values are at TA = +25°C 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). ELECTRICAL CHARACTERISTICS at TA = +25°C MAGNETIC CHARACTERISTICS over operating temperature and voltage range. Copyright © 1996,1999, Allegro MicroSystems, Inc.

www.allegromicro.com TYPICAL CHARACTERISTICS 12 16 20 SUPPLY VOLTAGE IN VOLTS 4.0 Dwg. GH-021 248.0 RELEASE POINT I = 20 mAOUT SWITCH POINT IN GAUSS -20 -40 OPERATE POINT T = 25°CA 0 25 50 75 100 AMBIENT TEMPERATURE IN °C -50 Dwg. GH-022 125-25 I = 20 mA V = 12 VCC OUT SWITCH POINT IN GAUSS -20 -40 RELEASE POINT OPERATE POINT 0 25 50 75 100 AMBIENT TEMPERATURE IN °C -50 Dwg. GH-023 125-25 V = 12 VCC B ≤ B RP SUPPLY CURRENT IN mA 6.0 5.0 4.0 3.0 B ≥ B OP 0 25 50 75 100 200 100 AMBIENT TEMPERATURE IN °C 175 150 125 -50 Dwg. GH-024 SATURATION VOLTAGE IN mV 125-25 I = 20 mAOUT

Worcester, Massachusetts 01615-0036 (508) 853-5000 SUFFIX “U” SUFFIX “UA” 0.043" 1.09 mm 1 32 Dwg. MH-008-2C 0.030" 0.76 mm NOM ACTIVE AREA DEPTH 0.089" 2.26 mm A 1 32 Dwg. MH-002-2B 0.016" 0.41 mm NOM BRANDED SURFACE ACTIVE AREA DEPTH 0.070" 1.78 mmA 0.091" 2.31 mm 1 32 Dwg. MH-011-10 0.019" 0.48 mm NOM BRANDED SURFACE ACTIVE AREA DEPTH 0.082" 2.07 mm 0.055" 1.39 mmA SENSOR LOCATIONS (±0.005” [0.13mm] die placement) SUFFIX “LT” Allegro

www.allegromicro.com Dimensions in Millimeters (controlling dimensions) Dwg. MA-009-3A in 1 23 0.072 0.064 0.167 0.155 0.059 BSC 0.0189 0.01420.047 0.035 0.102 0.090 0.063 0.055 0.0173 0.0138 0.090 0.084 0.0221 0.0173 0.118 BSC 0.181 0.173 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. PACKAGE DESIGNATOR ‘LT’ (SOT-89/TO-243AA) Dimensions in Inches (for reference only) Dwg. MA-009-3A mm 1 23 4.60 4.40 1.83 1.62 4.25 3.94 1.50 BSC 0.48 0.361.20 0.89 2.60 2.29 1.60 1.40 0.44 0.35 2.29 2.13 0.56 0.44 3.00 BSC

Worcester, Massachusetts 01615-0036 (508) 853-5000 Dwg. MH-003E mm 1.60 1.50 0.46 0.44 0.35 0.48 0.36 1.27 1 2 3 2.54 45° SEE NOTE 4.65 4.52 4.60 4.47 15.24 14.23 2.18 MAX Dwg. MH-003E in 0.063 0.059 0.018 0.0173 0.0138 0.0189 0.0142 0.050 1 2 3 0.100 45° SEE NOTE 0.183 0.178 0.181 0.176 0.600 0.560 0.086 MAX PACKAGE DESIGNATOR ‘U’ Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only) 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. Devices in the ‘U’ package are NOT RECOMMENDED FOR NEW DESIGN

www.allegromicro.com Dwg. MH-014E in 0.164 0.159 0.062 0.058 0.0173 0.0138 0.050 BSC 45° 0.640 0.600 0.0189 0.0142 0.085 MAX 45° 0.031123 0.122 0.117 SEE NOTE 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. PACKAGE DESIGNATOR ‘UA’ Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only) Dwg. MH-014E mm 4.17 4.04 1.57 1.47 0.44 0.35 1.27 BSC 45° 16.26 15.24 0.48 0.36 2.16 MAX 45° 0.79123 3.10 2.97 SEE NOTE 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; 5,686,894; 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 responsi- bility for its use; nor for any infringements of patents or other rights of third parties that may result from its use.

Worcester, Massachusetts 01615-0036 (508) 853-5000 HALL-EFFECT SENSORS SELECTION GUIDE Partial Part Avail. Oper. Characteristics at T A = +25°C NumberTemp. B OP(max) BRP(min) Bhys(typ) Features Notes HALL-EFFECT UNIPOLAR SWITCHES in order of B OP and Bhys 3240E/L +50+5.010chopper stabilized 1 3210E ±70 ±5.07.7 micropower, chopper stabilized 3361 E +120+505.0 * 2-wire, chopper stabilized 3362 E +120+505.0 * 2-wire, chopper stabilized

3161 E +160+30 202-wire

3141 E/L +160+10 55

3235 S +175 +25 15* output 1 2

-25 -175 15* output 2 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 10 5

3121 E/L +450+125 10 5

3150J +40 to +850 – 20 programmable, chopper stabilized 1 HALL-EFFECT LATCHES & BIPOLAR SWITCHES† in order of BOP and Bhys 3260E/L +30-30 20bipolar, chopper stabilized 3280E/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 +90-9010 0 chopper stabilized

3132 K/L/S +95 -95 52 bipolar switch

3187 E/L +150 -150 100*

3177 S +150-150 20 0

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 20 0

3188 E/L +180 -180 200*

3283 E/L +180-180 30 0chopper stabilized

3189 E/L +230 -230 100*

3275 S +250 -250 100* 5

3185 E/L +270-270340 *

Operating Temperature Ranges: 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.