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ATS276D-PA-A Datasheet(PDF) 1 Page - Anachip Corp |
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ATS276D-PA-A Datasheet(HTML) 1 Page - Anachip Corp |
1 / 7 page Complementary Output Hall Effect Latch ATS276/277 This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.B1 Mar 17, 2004 1/7 ATC Features - On-chip Hall sensor with two different sensitivity and hysteresis settings for ATS276/277 - 3.5V to 20V operating voltage - 400mA (avg) output sink current - Build-in protecting diode only for chip reverse power connecting - -20 °C to 85°C operating temperature - Low profile 4 pin SIP package Applications - Dual-coil Brush-less DC Motor - Dual-coil Brush-less DC Fan - Revolution Counting - Speed Measurement General Description ATS276/277 are integrated Hall sensors with output drivers, mainly designed for electronic commutation of brush-less DC Fan. This IC internally includes the regulator, protecting diode, Hall plate, amplifier, comparator, and a pair of complementary open-collector outputs (DO, DOB). While the magnetic flux density (B) is larger than operate point (Bop), DO will turn on (low), and meanwhile DOB will turn off (high). Each output is latched until B is lower than release point (Brp), and then DO、DOB transfer each state. For DC fan application, sometimes need to test power reverse connection condition. Internal diode only protects chip-side but not for coil-side. If necessary, add one external diode to block the reverse current from coil-side. Ordering Information ATS27X X -X X X -X Packing Blank : Tube or Bulk A : Tape & Reel P: SIP-4L Package Lead L : Lead Free Blank: Normal Wafer Body Magnetic Characteristics Blank or A~Z : if necessary to specify 276:A or B or C Part No. 6 : ATS276 7 : ATS277 277:A or B Typical Application Circuit 12 4 3 27X coil1 coil2 Vcc Brush-less DC Fan |
Similar Part No. - ATS276D-PA-A |
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Similar Description - ATS276D-PA-A |
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