DatasheetsPDF.com

ATS177

Diodes Incorporated
Part Number ATS177
Manufacturer Diodes Incorporated
Description SINGLE OUTPUT HALL EFFECT LATCH
Published May 12, 2007
Detailed Description OBSOLETE – PART DISCONTINUED PART OBSOLETE - USE AH3774/AH3775 ATS177 SINGLE OUTPUT HALL EFFECT LATCH Description AT...
Datasheet PDF File ATS177 PDF File

ATS177
ATS177

Overview
OBSOLETE – PART DISCONTINUED PART OBSOLETE - USE AH3774/AH3775 ATS177 SINGLE OUTPUT HALL EFFECT LATCH Description ATS177 is an integrated Hall-Effect latch 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.
An internal bandgap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range.
When the magnetic flux density (B) is larger than operate point (Bop), output is switched on (DO pin is pulled low).
The output state is held on until a magnetic flux density reversal falls below Brp.
When B is less than Brp, the output is switched off.
The ATS177 is available in SIP-3L package.
Features • Bipolar Hall-Effect latch sensor • 3.
5V to 20V DC operating voltage • Temperature compensation • Open-collector pre-driver • 25mA maximum output sink current • Built-in reverse polarity protection • Operating temperature: -40C to +125C • SIP-3L package • Green Molding Compound (No Br, Sb) (Note 1) Pin Assignments (Top View) SIP-3L Applications • Brush-less DC Motor • Brush-less DC Fan • Revolution counting • Speed measurement 3.
DO 2.
GND 1.
Vcc Notes: 1.
EU Directive 2002/95/EC (RoHS).
All applicable RoHS exemptions applied.
Please visit our website at http://www.
diodes.
com/products/lead_free.
html.
Typical Application Circuit + 12V D1 R1 2K U1 1 VCC OUTPUT 3 GND 2 ATS177 L1 Q1 NPN R2 3K + C1 0.
47uF L2 Q2 NPN + C2 0.
47uF ATS177 Document number: DS31055 Rev.
7 - 4 Brush-less DC Fan 1 of 9 www.
diodes.
com September 2019 © Diodes Incorporated PART OBSOLETE - USE AH3774/AH3775 Pin Descriptions Pin name Vcc GND DO P/I/O P P O Pin # 1 2 3 Functional Block Diagram Description Positive power supply Ground Digital output Vcc 1 ATS177 OBSOLETE – PART DISCO...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)