A3212 Allegro MicroSystems, A3212 Datasheet
A3212
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A3212 Summary of contents
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... A3212 MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH The A3212 integrated circuit is an ultra-sensitive, pole in de pen dent Hall- effect switch with a latched digital output. This sensor cial ly suited for operation in battery-operated, hand-held equip ment such as cellular and cordless tele phones, pagers, and palmtop com put ers. A 2.5 volt to 3.5 volt operation and a unique clocking scheme reduce the average ing power requirements to less than 15 µ ...
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... Pb-free A3212EEHLT – A3212EEHLT–T Yes A3212ELHLT – A3212ELHLT–T Yes A3212EUA – A3212EUA–T Yes A3212LLHLT – A3212LLHLT–T Yes A3212LUA – A3212LUA–T Yes *Contact Allegro for additional packaging and handling options. 2 Product Selection Guide Packing* (Units/Pack) Tape and Reel (3000) ...
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... Chip Carrier www.allegromicro.com FUNCTIONAL BLOCK DIAGRAM TIMING LOGIC Pinning is shown viewed from branded side. Copyright © 2002, 2003 Allegro MicroSystems, Inc. 3212 MICROPOWER, ULTRA-SENSITIVE HALL-EFFECT SWITCH OUTPUT GROUND Dwg. FH-020-5 Package Suffi x ‘UA’ Pinning (SIP Dwg ...
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... A3212 MICROPOWER, ULTRA-SENSITIVE HALL-EFFECT SWITCH ELECTRICAL CHARACTERISTICS over operating voltage and temperature range (unless otherwise specified). Characteristic Supply Voltage Range Output Leakage Current Output On Voltage Awake Time Period Duty Cycle Chopping Frequency Supply Current NOTES: 1. Operate and release points will vary with supply voltage. ...
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TYPICAL OPERATING CHARACTERISTICS OPS B RPS 20 0 -20 B RPN -40 B OPN -60 -50 - AMBIENT TEMPERATURE IN ° ° ° ° C 7.0 6 =2.75 V ...
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... A3212 MICROPOWER, ULTRA-SENSITIVE HALL-EFFECT SWITCH 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 " ...
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Operation. The output of this device switches low (turns on) when a magnetic fi eld perpendicular to the Hall sensor exceeds the operate point B (or is less than B OPS output is capable of sinking ...
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... A3212 MICROPOWER, ULTRA-SENSITIVE HALL-EFFECT SWITCH ACTIVE AREA DEPTH ACTIVE AREA DEPTH ACTIVE AREA DEPTH 8 SENSOR LOCATIONS Package Designator 'EH' 0.013" 0.035" 0.34 mm 0.88 mm NOM 0.062" 1.56 mm BRANDED A SURFACE Dwg. MH-030 Package Designator 'LH' 0.011" 0.056" 0.28 mm 1.42 mm NOM 3 0.033" 0. Dwg. MH-025-2 Package Designator 'UA' 0.0195" ...
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BSC 0.30 .012 BSC 6 1.00 .039 BSC C 3.70 .146 BSC 1.25 .049 BSC 0.25 .010 BSC 1 0.40 0.25 .010 BSC BSC 0.95 BSC www.allegromicro.com PACKAGE DESIGNATOR ‘EH' (Reference MO-229C WCED-1) 2.15 .085 1.85 .073 6 ...
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Dimensions in Inches (for reference only) 0.122 0.114 0.020 0.012 0.083 0.118 3 0.073 0.106 1 2 GAUGE PLANE SEATING PLANE 0.022 REF 0.037 BSC 0.0079 0.006 0.0050 0.045 0.000 0.032 0.028 3 0.039 1 2 Dwg. MA-011-3 in NOTES: ...
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... A3212 MICROPOWER, ULTRA-SENSITIVE HALL-EFFECT SWITCH Dimensions in Inches (controlling dimensions) 0.164 0.159 45° 0.122 0.117 0.031 0.085 MAX 0.640 0.600 SEE NOTE 0.050 BSC NOTES: 1. Tolerances on package height and width represent allowable mold offsets. Dimensions given are measured at the widest point (parting line). ...
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... The information included herein is believed to be accurate and reli- able. However, Allegro MicroSystems, Inc. assumes no re spon si bil i ty for its use; nor for any infringements of pat ents or other rights of third parties that may result from its use. ...