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FS177

Feeling
Part Number FS177
Manufacturer Feeling
Description Low Voltage Hall Effect Latch
Published Feb 22, 2014
Detailed Description FS177 Technology General Description The FS177 is an integrated Hall effect latched sensor designed for electronic commu...
Datasheet PDF File FS177 PDF File

FS177
FS177

Overview
FS177 Technology General Description The FS177 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.
An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.
A north pole of sufficient strength will turn the output ON.
In the absence of a magnetic field, the output is OFF.
Low Voltage Hall Effect Latch Features w w w w w Wide operating voltage range: 3.
0V to 20V Maximum output sink current 25mA Open-Collector pre-driver Reverse polarity protection Package : TO-92SP-3 TO-92SP-3 Typical Application Circuit +12V R1 L1 L2 FS177 1 Vcc Gnd 2 Output 3 R2 C1 C2 Brushless DC Fan Rev0.
4 Sep.
25, 2006(LF) FS177 Data Sheet Page 1 / 1 Free Datasheet http://www.
datasheet-pdf.
com/ FS177 Technology Functional Block Diagram VCC Low Voltage Hall Effect Latch 1 Regulator Hall Sensor 3 Output 2 Gnd Mark View Pin Descriptions NAME NO.
STATUS VCC 1 P DESCRIPTION IC Power Supply 177 .
GND 2 P IC Ground It is low state during the N magnetic field.
Output 1 2 3 3 O Year Ex: 1 (2001) 2 (2002) Week of Year Product Ver.
Rev0.
4 Sep.
25, 2006(LF) FS177 Data Sheet Page 2 / 2 Free Datasheet http://www.
datasheet-pdf.
c FS177 Technology Absolute Maximum Ratings ( at Ta = 25 oC ) VCC Pin Voltage -----------------------------------------------------------------------------Output OFF Voltage, Vce ------------------------------------------------------------------Output ON Current (Io) Continuous Current ---------------------------------------------------------------Power Dissipation Ta=25 C -----------------------------------------------------------------------------Ta=100 C -------------...


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