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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 27631.2C V X CC 1 2 3 GROUND OUTPUT SUPPLY The three package styles available provide a magnetically optimized package for most applications. Suffix `LT' is a miniature SOT89/TO243AA transistor package for surface-mount applications; suffix `UA' features 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. FEATURES s 4.5 V to 24 V Operation s Reverse Battery Protection s Superior Temperature Stability s Superior Supply Voltage Stability Dwg. PH-003A Pinning is shown viewed from branded side. 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 s Activate with Multi-Pole Ring Magnets s Solid-State Reliability s Small Size s Constant Output Amplitude s 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. 1 gauss (G) is exactly equal to 0.1 millitesla (mT). * Complete part number includes a prefix denoting operating temperature range (UGL, UGN, or UGS) and a suffix denoting package type (LT or UA). 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright (c) 1996, 2003 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 SUPPLY CURRENT IN mA 175 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 Powering up in the absence of a magnetic field (less than BOP and higher than BRP) will allow an indeterminate output state. The correct state is warranted after the first excursion beyond BOP or BRP. Bipolar switches may switch on removal of field but require field reversal for reliable operation over temperature range; latches will not switch on removal of magnetic field. www.allegromicro.com 3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES SENSOR LOCATIONS (0.005" [0.13mm] die placement) SUFFIX "LT" ACTIVE AREA DEPTH 0.0305" 0.775 mm NOM 0.089" 2.26 mm 0.043" 1.09 mm A 1 2 3 Dwg. MH-008-2D SUFFIX "UA" ACTIVE AREA DEPTH 0.0195" 0.50 mm NOM 0.082" 2.07 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. A BRANDED SURFACE 1 2 3 0.055" 1.39 mm Dwg. MH-011-10A Allegro 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES PACKAGE DESIGNATOR `LT' (SOT89/TO-243AA) Dimensions in Inches (for reference only) Dimensions in Millimeters (controlling dimensions) 0.181 0.173 0.072 0.064 0.167 0.155 0.102 0.090 0.063 0.055 0.0173 0.0138 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 0.090 0.084 1 2 3 2.29 2.13 0.047 0.035 0.059 BSC 0.0189 0.0142 0.0221 0.0173 0.118 BSC Dwg. MA-009-3A in 1.20 0.89 1.50 BSC 0.48 0.36 0.56 0.44 3.00 BSC Dwg. MA-009-3A mm 0.098 0.079 B A 0.031 0.102 0.181 3 0.047 0.031 TYP 2.5 2.0 B A 0.8 2.6 4.6 1.2 0.8 TYP 1 0.028 TYP 2 1 0.7 TYP 2 3 Pads 1, 2, 3, and A -- Standard SOT89 Layout Pads 1, 2, 3, and B -- Low-Stress Version Pads 1, 2, and 3 only -- Lowest Stress, But Not Self Aligning Dwg. MA-012-3 in Pads 1, 2, 3, and A -- Standard SOT89 Layout Pads 1, 2, 3, and B -- Low-Stress Version Pads 1, 2, and 3 only -- Lowest Stress, But Not Self Aligning Dwg. MA-012-3 mm NOTES: 1. Exact body and lead configuration at vendor's option within limits shown. 2. Supplied in bulk pack (500 pieces per bag) or add "TR" to part number for tape and reel. 3. Only low-temperature (240C) reflow-soldering techniques are recommended for SOT89 devices. www.allegromicro.com 3132 AND 3133 BIPOLAR HALL-EFFECT SWITCHES PACKAGE DESIGNATOR `UA' Dimensions in Inches (controlling dimensions) 0.164 0.159 Dimensions in Millimeters (for reference only) 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 Radial Lead Form (order UGx313xUA-LC) 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. 6. Supplied in bulk pack (500 pieces per bag). 0.620" 0.500" (15.7 mm 12.7 mm) 1 2 3 0.108" (2.74 mm) 0.100" (2.5 mm) Dwg. MH-026 NOTE: Lead-form dimensions are the nominals produced on the forming equipment. No dimensional tolerance is implied or guaranteed for bulk packaging (500 pieces per bag). 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 |
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