3141 ALLEGRO | Alldatasheet
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Data Sheet27621.6B* Always order by complete part number, e.g., A3141ELT . ABSOLUTE MAXIMUM RATINGS at TA = +25°C Operating Temperature Range, TA Storage Temperature Range, These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150°C, and are more stable with both temperature and supply voltage changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. The four basic devices (3141, 3142, 3143, and 3144) are identical except for magnetic switch points. Each device includes a voltage regulator for operation with supply voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic Hall-voltage generator, temperature compensation circuitry, small- signal amplifier, Schmitt trigger, and an open-collector output to sink up to 25 mA. With suitable output pull up, they can be used with bipolar or CMOS logic circuits. The A3141– and A3142– are im- proved replacements for the UGN/UGS3140–; the A3144– is the improved replacement for the UGN/UGS3120–. The first character of the part number suffix determines the device operating temperature range. Suffix ‘E–’ is for the automotive and industrial temperature range of -40°C to +85°C. Suffix ‘L–’ is for the automotive and military temperature range of -40°C to +150°C. Three package styles provide a magnetically optimized package for most applications. Suffix ‘–LT’ is a miniature SOT89/TO-243AA transistor package for surface-mount applications; suffix ‘–UA’ is a three-lead ultra-mini-SIP. FEATURES and BENEFITS I Superior Temp. Stability for Automotive or Industrial Applications I 4.5 V to 24 V Operation … Needs Only An Unregulated Supply I Open-Collector 25 mA Output … Compatible with Digital Logic I Reverse Battery Protection I Activate with Small, Commercially Available Permanent Magnets I Solid-State Reliability I Small Size I Resistant to Physical Stress Pinning is shown viewed from branded side. SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
3141 THRU
Dwg. PH-003A 1SUPPLY V CC GROUND OUTPUT X
3141 THRU 3144
FOR HIGH-TEMP. OPERATION
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000 FUNCTIONAL BLOCK DIAGRAM VCC X REG. Dwg. FH-005-2 GROUND OUTPUT3 MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range. NOTES: Typical values are at TA = +25°C and VCC = 8 V. BOP = operate point (output turns ON); BRP = release point (output turns OFF); Bhys = hysteresis (BOP - BRP). 1 gauss (G) is exactly equal to 0.1 millitesla (mT). *Complete part number includes a suffix to identify operating temperature range (E- or L-) and package type ( -LT or -UA). ELECTRICAL CHARACTERISTICS at VCC = 8 V over operating temperature range. 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 — 175 400 mV Output Leakage Current I OFF VOUT = 24 V, B < BRP — <1.010 µA Supply Current I CC B < BRP (Output OFF) — 4.4 9.0mA Output Rise Time t r RL = 820 Ω , CL = 20 pF — 0.04 2.0 µs Output Fall Time t f RL = 820 Ω , CL = 20 pF — 0.18 2.0 µs Part Numbers* A3141– A3142– A3143– A3144– BOP at TA = 25°C 5010 0160 130 180230 220280340 70 — 350 over operating temp. range 3010 0175 115 180245 20 5 280355 35 — 450 BRP at TA = 25°C 1045 130 75 125 175 165 225 285 50— 330 over operating temp. range 1045 145 60 125 190 150 225 30 0 25 — 430 Bhys at TA = 25°C 2055 80 3055 80 3055 80 2055 — over operating temp. range 2055 80 3055 80 3055 80 2055 — Copyright © 1993, 2002 Allegro MicroSystems, Inc.
FOR HIGH-TEMP. OPERATION www.allegromicro.com SUPPLY CURRENT SUPPLY CURRENT 10 15 20 25 SUPPLY VOLTAGE IN VOLTS Dwg. GH-041-1 SUPPLY CURRENT IN mA 2.0 4.0 6.0 8.0 B ≥ B OP B ≤ B RP T = +25°CA 0 25 50 75 100 AMBIENT TEMPERATURE IN °°°°C -50 Dwg. GH-039-1 125-25 V = 8 VCC SUPPLY CURRENT IN mA 7.0 6.0 5.0 4.0 150 B ≤ B RP B ≥ B OP TYPICAL OPERATING CHARACTERISTICS A3142– SWITCH POINTS OUTPUT SATURATION VOLTAGE 0 25 50 75 100 300 AMBIENT TEMPERATURE IN °°°°C 200 100 -50 Dwg. GH-040-1 SATURATION VOLTAGE IN mV 150-25 125 I = 20 mA V = 4.5–24 V OUT CC 0 50 100 AMBIENT TEMPERATURE IN °°°°C -50 Dwg. GH-044 SWITCH POINT IN GAUSS 300 400 200 100 OPERATE POINT RELEASE POINT V = 8 V CC 150 -25 25 75 125 * Complete part number includes a suffix denoting operating temperature range (E- or L-) and package type ( -LT, -U, or -UA).
FOR HIGH-TEMP. OPERATION Worcester, Massachusetts 01615-0036 (508) 853-5000 TYPICAL OPERATING CHARACTERISTICS (cont.) CHANGE IN OPERATE POINT 10 15 20 25 SUPPLY VOLTAGE IN VOLTS Dwg. GH-042-1 CHANGE IN OPERATE POINT IN GAUSS -5.0 5.0 T = +25°CA OPERATION The output of these devices (pin 3) switches low when the magnetic field at the Hall sensor exceeds the operate point threshold (BOP). At this point, the output voltage is VOUT(SAT). When the magnetic field is reduced to below the release point threshold (BRP), the device output goes high. The difference in the magnetic operate and release points is called the hysteresis (Bhys) of the device. This built-in hysteresis allows clean switching of the output even in the presence of external mechanical vibration and electrical noise. Extensive applications information for Hall-effect sensors is available in:
- Hall-Effect IC Applications Guide, Application Note 27701;
- Hall-Effect Devices: Soldering, Gluing, Potting, Encapsulating, and Lead Forming, Application Note 27703.1;
- Soldering of Through-Hole Hall-Sensor Dervices, Application Note 27703; and
- Soldering of Surface-Mount Hall-Sensor Devices, Application Note 27703.2. All are provided in Allegro Electronic Data Book, AMS-702. or at www.allegromicro.com SENSOR LOCATIONS (±0.005” [0.13 mm] die placement) 1 32 Dwg. MH-011-10A 0.0195" 0.50 mm NOM BRANDED SURFACE ACTIVE AREA DEPTH 0.082" 2.07 mm 0.055" 1.39 mmA Suffix “UA” Suffix “LT” 0.043" 1.09 mm 1 32 Dwg. MH-008-2D 0.0305" 0.775 mm NOM ACTIVE AREA DEPTH 0.089" 2.26 mm A Allegro
FOR HIGH-TEMP. OPERATION www.allegromicro.com 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 0.0840.0221 0.0173 0.118 BSC 0.181 0.173 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 2.130.56 0.44 3.00 BSC PACKAGE DESIGNATOR ‘LT’ (SOT89/TO-243AA) Dimensions in Inches (for reference only) Dimensions in Millimeters (controlling dimensions) 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 (≤240°C) reflow-soldering techniques are recommended for SOT89 devices. B 0.098 0.031 0.102 0.047 0.181 0.079 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 0.028 TYP 0.031 TYP A 3 13 B 2.5 0.8 2.6 1.2 4.6 2.0 Dwg. MA-012-3 mm 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 0.7 TYP 0.8 TYP A
FOR HIGH-TEMP. OPERATION Worcester, Massachusetts 01615-0036 (508) 853-5000 Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only) PACKAGE DESIGNATOR ‘UA’ 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). 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 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 Radial Lead Form (order A314xxUA-LC) 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). 0.620" 0.500" (15.7 mm 12.7 mm) 0.100" (2.5 mm) Dwg. MH-026 0.108" (2.74 mm) 123
FOR HIGH-TEMP. OPERATION www.allegromicro.com HALL-EFFECT SENSORS UNIPOLAR HALL-EFFECT DIGITAL SWITCHES Partial Operate Release Hysteresis Replaces Part Point (G) Point (G) (G) Oper. and Number Over Oper. Voltage & Temp. Range Temp. Packages Comments A3121x 220 to 500 80 to 410 60 to 150 E, L LT, UA 3019, 3113, 3119 A3122x 260 to 430 120 to 360 70 to 140 E, L LT, UA A3123x 230 to 470 160 to 330 70 to 140 E, L LT, UA A3141x 30 to 175 10 to 145 20 to 80 E, L LT, UA 3040, 3140 A3142x 115 to 245 60 to 190 30 to 80 E, L LT, UA A3143x 205 to 355 150 to 300 30 to 80 E, L LT, UA A3144x 35 to 450 25 to 430 >20 E, L LT, UA 3020, 3120 A3161E <160 (Typ 130) >30 (Typ 110) 5 to 80 E LT, UA 2-wire operation A3163E <160 (Typ 98) >30 (Typ 79) 5 to 40 E LT, UA 2-wire A3240x <50 (Typ 35) >5 (Typ 25) Typ 10 E, L LH, LT, UA chopper stabilized A3250x <50 to >350 _ 5 to 35 J, L UA programmable, chopper stabilized A3251x <50 to >350 _ 5 to 35 J, L UA programmable, chopper stabilized A3361E <125 >405 to 30 E LH, LT, UA 2-wire, chopper stabilized, output normally high A3362E <125 >405 to 30 E LH, LT, UA 2-wire, chopper stabilized, output normally low MICROPOWER OMNIPOLAR HALL-EFFECT DIGITAL SWITCHES Partial Operate Release Hysteresis Average Part Points (G) Points (G) (G) Oper. Supply Number Over Oper. Voltage & Temp. Range Temp. Packages Current ( µA) A3209E >-60, <60 <-5, >5 Typ 7.7 E LH, UA <425 (Typ 145) A3212E >-55, <55 <-10, >10 Typ. 8 E LH, UA <10 (Typ 4.2) BIPOLAR HALL-EFFECT DIGITAL SWITCHES Partial Operate Release Hysteresis Replaces Part Point (G) Point (G) (G) Oper. and Number Over Oper. Voltage & Temp. Range Temp. Packages Comments UGx3132 <95 (Typ 32) >-95 (Typ -20) >30 (Typ 52) K, L, S LT, UA 3030, 3130, 3131 UGx3133 <75 (Typ 32) >-75 (Typ -20) >30 (Typ 52) K, L, S LT, UA UGx3134 -40 to 50 -50 to 40 5 to 55 E, L LT, UA A3260x <30 (Typ 10) >-30 (Typ -10) Typ 20 E, L LH, LT, UA 2 wire, chopper stabilized Notes: 1) Typical data is at TA = +25°C and nominal operating voltage. 2) “x” = Operating Temperature Range [suffix letter or (prefix)]: S (UGN) = -20°C to +85°C, E = -40°C to +85°C, J = -40°C to +115°C, K (UGS) = -40°C to +125°C, L (UGL) = -40°C to +150°C.
FOR HIGH-TEMP. OPERATION Worcester, Massachusetts 01615-0036 (508) 853-5000 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 responsibil- ity for its use; nor for any infringements of patents or other rights of third parties that may result from its use.