A3211 ALLEGRO [Allegro MicroSystems], A3211 Datasheet
A3211
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A3211 Summary of contents
Page 1
... A3212, and in the absence of a magnetic field, the output is off. The A3211 provides an inverted output. The polarity independence and minimal power requirements allow these devices to easily replace reed switches for superior reliability and ease of manufacturing, while eliminating the requirement for signal conditioning ...
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... Four package styles provide magnetically op ti mized Selection Guide 1 Part Number Pb-free A3211EEHLT–T Yes A3211EELLT–T Yes A3211ELHLT–T Yes A3212EEHLT–T Yes A3212EELLT–T Yes A3212ELHLT–T Yes A3212EUA–T Yes A3212LLHLT– ...
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... A3211 and A3212 Package Suffix ‘EH’ Pinning (Leadless Chip Carrier Package Suffix ‘LH’ Pinning (SOT23W Dwg. PH-016 Pinning is shown viewed from branded side. Micropower, Ultrasensitive Hall Effect Switch Package Suffix ‘EL’ Pinning ...
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... A3211 and A3212 ELECTRICAL CHARACTERISTICS Characteristic Supply Voltage Range Output Leakage Current Output On Voltage Awake Time Period Duty Cycle Chopping Frequency Supply Current * Typical data 25°C and V = 2.75 V, and is for design information only Micropower, Ultrasensitive over operating voltage and temperature range (unless otherwise specified). ...
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... A3211 and A3212 3211 MAGNETIC CHARACTERISTICS Characteristic Symbol B South pole to branded side; B > B OPS Operate Points B North pole to branded side; B > B OPN B South pole to branded side; B < B RPS Release Points B North pole to branded side; B < B RPN Hysteresis B |B HYS OPx NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., - less than +10 G. ...
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... A3211 and A3212 OPS B RPS 20 0 -20 B RPN -40 B OPN -60 -50 - AMBIENT TEMPERATURE IN ° ° ° ° C 7.0 6 =2. 5 4.0 3.0 -50 - AMBIENT TEMPERATURE IN ° ° ° ° C TYPICAL OPERATING CHARACTERISTICS SWITCH POINTS -20 -40 -60 75 100 ...
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... A3211 and A3212 Low Average Power. Internal timing circuitry activates the sensor for 45 μs and deactivates it for the remainder of the pe- riod (45 ms). A short "awake" time allows for stabilization prior to the sensor sam pling and data latching on the falling edge of the timing pulse. The output during the "sleep" time is latched in the last sampled state ...
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... The A3211 functions in the same manner, except the out- put voltage is reversed from the A3212, as shown in the figures to the right. ...
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... A3211 and A3212 Package Designator 'EH' ACTIVE AREA DEPTH 0.013" 0.34 mm 0.88 mm NOM 6 5 BRANDED SURFACE 1 2 Package Designator 'LH' ACTIVE AREA DEPTH 0.011" 0.28 mm 1.42 mm NOM SENSOR LOCATIONS ACTIVE AREA DEPTH 0.035" 4 0.062" 1. Dwg. MH-030 ACTIVE AREA DEPTH 0.056" 0.033" 0. Dwg. MH-025-2 ...
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... A3211 and A3212 0.50 .020 BSC 0.30 .012 BSC 6 1.00 .039 BSC 3.70 .146 BSC 1.25 .049 BSC 0.25 .010 BSC 1 0.25 .010 BSC PACKAGE DESIGNATOR ‘EH' (Reference MO-229C WCED-1) 2.15 .085 1.85 .073 6 3.15 .124 2.85 .112 A 1 0.30 .012 0.20 .008 0.50 .020 BSC 1 0.65 .026 0.45 .018 C 1.324 .052 B 1.074 .042 6 0.40 .016 1.142 .045 BSC 0 ...
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... A3211 and A3212 1.350 .053 BSC 0.325 REF 0.32 .013 MIN 3 1.025 .040 D MAX 0.138 REF 0.20 .008 C REF 0.15 .006 MIN 1 0.40 .016 0.50 .020 NOM BSC PACKAGE DESIGNATOR ‘EL' MLPD 3 Contact 2.00 .079 BSC 3 2.00 .079 BSC 0.32 .013 0.20 .008 0.50 .020 .013 BSC 0.50 .020 0.30 .012 1 2 .005 R0 ...
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... A3211 and A3212 Preliminary dimensions, for reference only Dimensions in millimeters U.S. Customary dimensions (in.) in brackets, for reference only (reference JEDEC TO-236 AB, except case width and terminal tip-to-tip) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at supplier discretion within limits shown ...
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... A3211 and A3212 .122 .117 The products described herein are man u fac tured under one or more of the following U.S. pat ents: 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 de par tures from the detail spec tions as may be required to permit improvements in the per for mance, reliability, or manufacturability of its products ...