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| 3175 AND 3177 HALL-EFFECT LATCHES These Hall-effect latches are temperature-stable and stress-resistant sensors especially suited for electronic commutation in brushless dc motors using multipole ring magnets. Each device includes a voltage regulator, quadratic Hall voltage generator, temperature compensation circuit, signal amplifier, Schmitt trigger, and an open-collector output on a single silicon chip. The on-board regulator permits operation with supply voltages of 4.5 volts to 18 volts. The switch output can sink 10 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 surface-mount SOT89/ TO-243AA package; suffixe `UA' features wire leads for through-hole mounting. Data Sheet 27609.4C V X CC 1 2 3 GROUND OUTPUT SUPPLY FEATURES s Symmetrical Response s 4.5 V to 18 V Operation s Open-Collector Output s Reverse Battery Protection s Activate With Small, Commercially Available Permanent Magnets s Solid-State Reliability s Small Size s Superior Temperature Stability s Resistant to Physical Stress Dwg. PH-003A Pinning is shown viewed from branded side. ABSOLUTE MAXIMUM RATINGS Supply Voltage, VCC . . . . . . . . . . . . . 18 V Reverse Battery Voltage, VRCC . . . . -18 V Magnetic Flux Density, B . . . . Unlimited Output OFF Voltage, VOUT . . . . . . . . 18 V Continuous Output Current, IOUT . 15 mA Operating Temperature Range, TA . . . . . . . . . . . . . . . -20C to +85C Storage Temperature Range, TS . . . . . . . . . . . . . . . -65C to +150C Always order by complete part number, e.g., UGN3175LT . See Magnetic Characteristics table for differences between devices. 3175 AND 3177 HALL-EFFECT LATCHES FUNCTIONAL BLOCK DIAGRAM 1 VCC REG. X 3 OUTPUT GROUND 2 Dwg. FH-005-2 ELECTRICAL CHARACTERISTICS at TA = +25C, VCC = 4.5 V to 18 V (unless otherwise noted). 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 VCC = 18 V, IOUT = 10 mA, B > BOP VOUT = 18 V, B < BRP VCC = 4.5 V, B < BRP (Output OFF) VCC = 12 V, RL = 1.1 k, CL = 20 pF VCC = 12 V, RL = 1.1 k, CL = 20 pF Min. 4.5 -- -- -- -- -- Typ. -- 200 0.05 5.0 0.04 0.18 Max. 18 300 5.0 10 2.0 2.0 Units V mV A mA s s MAGNETIC CHARACTERISTICS in gauss; VCC = 4.5 V to 18 V. Characteristic Operate Point, BOP Part Number* UGN3175 UGN3177 Release Point, BRP UGN3175 UGN3177 Hysteresis, Bhys UGN3175 UGN3177 TA = +25C Min. 25 50 -170 -150 100 100 Typ. -- -- -- -- 200 200 Max. 170 150 -25 -50 -- -- Min. 15 25 -180 -150 80 50 TA = -20C to +85C Typ. -- -- -- -- 180 180 Max. 180 150 -15 -25 -- -- NOTE: As used here, negative flux densities are defined as less than zero (algebraic convention). Complete part number includes a suffix denoting package type (LT or UA). 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright (c) 1991, 2002 Allegro MicroSystems, Inc. 3175 AND 3177 HALL-EFFECT LATCHES SENSOR LOCATIONS (0.005" [0.13mm] die placement) Suffix "LT" ACTIVE AREA DEPTH 0.0305" 0.775 mm NOM 0.090" 2.30 mm 0.045" 1.15 mm SWITCH POINT IN GAUSS 100 200 TYPICAL OPERATING CHARACTERISTICS OPERATE POINT V 0 CC = 14 V A 1 2 3 -100 RELEASE POINT -200 Dwg. MH-008-1C -30 -10 10 30 50 70 90 AMBIENT TEMPERATURE IN C Suffix "UA" ACTIVE AREA DEPTH 0.0195" 0.50 mm NOM Dwg. GH-020 0.083" 2.12 mm A BRANDED SURFACE 1 2 3 0.055" 1.39 mm Dwg. MH-011C 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 3175 AND 3177 HALL-EFFECT LATCHES 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. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 3175 AND 3177 HALL-EFFECT LATCHES 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 A317xxUA-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). 1 2 3 0.620" 0.500" (15.7 mm 12.7 mm) 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). www.allegromicro.com 3175 AND 3177 HALL-EFFECT LATCHES HALL-EFFECT SENSORS UNIPOLAR HALL-EFFECT DIGITAL SWITCHES Partial Part Number A3121x A3122x A3123x A3141x A3142x A3143x A3144x A3161E A3163E A3240x A3250x A3251x A3361E A3362E Operate Release Hysteresis Point (G) Point (G) (G) Over Oper. Voltage & Temp. Range 220 to 500 80 to 410 260 to 430 120 to 360 230 to 470 160 to 330 30 to 175 10 to 145 115 to 245 60 to 190 205 to 355 150 to 300 35 to 450 25 to 430 <160 (Typ 130) >30 (Typ 110) <160 (Typ 98) >30 (Typ 79) <50 (Typ 35) >5 (Typ 25) <50 to >350 _ <50 to >350 _ <125 <125 >40 >40 60 to 150 70 to 140 70 to 140 20 to 80 30 to 80 30 to 80 >20 5 to 80 5 to 40 Typ 10 5 to 35 5 to 35 5 to 30 5 to 30 Oper. Temp. E, L E, L E, L E, L E, L E, L E, L E E E, L J, L J, L E E Replaces and Comments Packages LT, UA 3019, 3113, 3119 LT, UA LT, UA LT, UA 3040, 3140 LT, UA LT, UA LT, UA 3020, 3120 LT, UA 2-wire operation LT, UA 2-wire LH, LT, UA chopper stabilized UA programmable, chopper stabilized UA programmable, chopper stabilized 2-wire, chopper stabilized, LH, LT, UA output normally high 2-wire, chopper stabilized, LH, LT, UA output normally low MICROPOWER OMNIPOLAR HALL-EFFECT DIGITAL SWITCHES Partial Part Number A3209E A3210E A3212E Operate Release Hysteresis Points (G) Points (G) (G) Over Oper. Voltage & Temp. Range >-60, <60 >-60, <60 >-55, <55 <-5, >5 <-5, >5 <-10, >10 Typ 7.7 Typ 7.7 Typ. 8 Oper. Temp. E E E Average Supply Current (A) <425 (Typ 145) <60 (Typ 8.8) <10 (Typ 4.2) Packages LH, UA LH, UA LH, UA BIPOLAR HALL-EFFECT DIGITAL SWITCHES Partial Part Number UGx3132 UGx3133 UGx3134 A3260x Operate Release Hysteresis Point (G) Point (G) (G) Over Oper. Voltage & Temp. Range <95 (Typ 32) <75 (Typ 32) -40 to 50 <30 (Typ 10) >-95 (Typ -20) >30 (Typ 52) >-75 (Typ -20) >30 (Typ 52) -50 to 40 5 to 55 >-30 (Typ -10) Typ 20 Oper. Temp. K, L, S K, L, S E, L E, L Replaces and Comments 3030, 3130, 3131 Packages LT, UA LT, UA LT, UA LH, LT, UA 2 wire, chopper stabilized Notes: 1) Typical data is at TA = +25C and nominal operating voltage. 2) "x" = Operating Temperature Range [suffix letter or (prefix)]: S (UGN) = -20C to +85C, E = -40C to +85C, J = -40C to +115C, K (UGS) = -40C to +125C, L (UGL) = -40C to +150C. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 |
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