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ATS177 Datasheet PDF

Anachip ATS177

ATS177 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high).
Part No. ATS177
Datasheet ATS177 Download
Manufacturer
Anachip
Description Single Output Hall Effect Latch
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ATS177 datasheet page 1 preview

FEATURES

- 3.5V to 20V DC operation voltage - Temperature compensation - Wide operating voltage range - Open-Collector pre-driver - 25mA maximum sinking output current. - Reverse polarity protection - Package: SIP3, SOT23 „

APPLICATIONS

- Brush-less DC Motor - Brush-less DC Fan - Revolution counting - Speed measurement „

GENERAL DESCRIPTION

An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on(low). „ Ordering Information ATS177 X - X X X - X Wafer Body Blank or A~Z : if necessary to specify Package P: SIP3 W: SOT23 Lead L : Lead Free Blank: Normal Packing Blank : Tube or Bulk A : Tape & Reel Magnetic Characteristics A or B „ Typical Application Circuit +12V D1 U1 1 VCC OUTPUT GND 2 ATS177 3 R1 2K L1 Q1 NPN R2 3K + C1 0.47uF L2 Q2 NPN + C2 0.47uF Brush-less DC Fan This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice.
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