Data Sheet 27631.2B 3132 AND 3133 ULTRA-SENSITIVE BIPOLAR HALL-EFFECT SWITCHES X 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. 2 3 OUTPUT 1 GROUND CC SUPPLY V 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. Dwg. PH-003A Pinning is shown viewed from branded side. 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 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 . . . . . . . -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 ■ 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 FUNCTIONAL BLOCK DIAGRAM 1 VCC REG. X 3 OUTPUT 2 GROUND Dwg. FH-005-2 ELECTRICAL CHARACTERISTICS at TA = +25°C Limits Characteristic Symbol Supply Voltage VCC Min. Typ. Max. Units Operating 4.5 — 24 V VOUT(SAT) IOUT = 20 mA, B ≥ BOP — 145 400 mV Output Leakage Current IOFF VOUT = 24 V, B ≤ BRP — <1.0 10 µA Supply Current ICC VCC = 24 V, B ≤ BRP — 4.3 9.0 mA Output Saturation Voltage Test Conditions Output Rise Time tr VCC = 12 V, RL = 820 Ω, CL = 20 pF — 0.04 2.0 µs Output Fall Time tf VCC = 12 V, RL = 820 Ω, CL = 20 pF — 0.18 2.0 µs MAGNETIC CHARACTERISTICS over operating temperature and voltage range. Limits Characteristic Symbol Operate Point BOP Release Point Hysteresis BRP Bhys Device Type* Min. Typ. Max. Units 3132 — 32 95 G 3133 — 32 75 G 3132 -95 -20 — G 3133 -75 -20 — G Both 30 52 — 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). 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1996,1999, Allegro MicroSystems, Inc. 3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES TYPICAL CHARACTERISTICS 40 40 OPERATE POINT OPERATE POINT 20 SWITCH POINT IN GAUSS SWITCH POINT IN GAUSS 20 VCC = 12 V 0 I OUT = 20 mA RELEASE POINT -20 T A = 25°C 0 I OUT = 20 mA -20 RELEASE POINT -40 -50 -25 0 25 50 75 AMBIENT TEMPERATURE IN °C -40 4.0 125 100 8.0 12 16 SUPPLY VOLTAGE IN VOLTS Dwg. GH-022 Dwg. GH-021 6.0 200 I OUT = 20 mA VCC = 12 V SUPPLY CURRENT IN mA SATURATION VOLTAGE IN mV B ≥ B OP 175 150 5.0 4.0 B ≤ B RP 125 100 -50 28 24 20 -25 0 25 50 75 100 125 -25 0 25 50 75 AMBIENT TEMPERATURE IN °C AMBIENT TEMPERATURE IN °C Dwg. GH-024 www.allegromicro.com 3.0 -50 100 125 Dwg. GH-023 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” ACTIVE AREA DEPTH 0.019" 0.48 mm NOM 0.091" 2.31 mm 0.082" 2.07 mm 0.070" 1.78 mm A BRANDED SURFACE 0.055" 1.39 mm A BRANDED SURFACE 1 2 1 2 3 3 Dwg. MH-011-10 Dwg. MH-002-2B 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 1 2 0.063 0.055 3 0.102 0.090 0.0173 0.0138 0.090 0.084 0.0189 0.0142 0.0221 0.0173 0.047 0.035 0.059 BSC 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 1 2 3 2.60 2.29 0.44 0.35 2.29 2.13 0.48 0.36 1.20 0.89 0.56 0.44 1.50 BSC 1.60 1.40 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. www.allegromicro.com 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 4.65 4.52 0.063 0.059 1.60 1.50 0.181 0.176 4.60 4.47 45° 0.086 1 2 45° 0.018 3 2.18 1 2 0.46 3 MAX MAX 0.44 0.35 15.24 14.23 0.0173 0.0138 0.600 0.560 0.48 0.36 0.0189 0.0142 SEE NOTE SEE NOTE 1.27 2.54 0.050 0.100 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 (508) 853-5000 Dwg. MH-003E mm 3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES PACKAGE DESIGNATOR ‘UA’ Dimensions in Millimeters (for reference only) Dimensions in Inches (controlling dimensions) 0.164 0.159 4.17 4.04 0.062 0.058 45° 1.57 1.47 45° 0.122 0.117 3.10 2.97 45° 0.085 1 2 3 45° 0.031 2.16 MAX 1 2 3 0.79 MAX 0.640 0.600 16.26 15.24 0.0173 0.0138 0.0189 0.0142 SEE NOTE 0.48 0.36 SEE NOTE 0.050 BSC 0.44 0.35 1.27 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. BSC 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 Number Avail. Oper. Characteristics at TA = +25°C Temp. BOP(max) BRP(min) Bhys(typ) Features HALL-EFFECT UNIPOLAR SWITCHES in order of BOP and Bhys 3240 3210 3361 3362 3161 3141 3235 E/L E E E E E/L S 5140 3142 3143 3144 3122 3123 3121 3150 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 Notes chopper stabilized micropower, chopper stabilized 2-wire, chopper stabilized 2-wire, chopper stabilized 2-wire 1 output 1 output 2 300 mA output 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 = -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