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Feeling Technology
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FS3144 Datasheet Preview

FS3144 Datasheet

Single Hall Effect Latch

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FS3144 pdf
FEELING
TECHNOLOGY
Single Hall Effect Latch
FS3144
Features
Wide operating voltage range: 3.0V to 28V
Maximum output sink current 50mA
Open-Collector pre-driver
Power reverse polarity protection
Available in SIP-3L package
Halogen Free
General Description
The FS3144 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.
Block Diagram
Vdd
1
Regulator
Hall
Sensor
3 Output
2 Gnd
Figure.1
This datasheet contains new product information. Feeling Technology 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 sales of the product.
Rev1.1 Jul. 12, 2011
P.1



Feeling Technology
Feeling Technology

FS3144 Datasheet Preview

FS3144 Datasheet

Single Hall Effect Latch

No Preview Available !

FS3144 pdf
FEELING
TECHNOLOGY
Pin Connection
[Top View]
FS3144
3. Output
2. Gnd
1. Vdd
Figure.2
Pin Descriptions
Name
I/O Pin No.
Description
Vdd P 1
Positive power supply
Gnd G 2
Ground
Output
O
3
Driver output
Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground
Functional Application Circuit
IA
IB
IC
Motor Driver
&
Control Logic
Ia
Ib
Ic
HA
HB
HC
DC Motor Driver
M
: Hall Effect Sensor
M : 3 Phase DC Motor
Figure.3
Rev1.1 Jul. 12, 2011
P.2


Part Number FS3144
Description Single Hall Effect Latch
Maker Feeling Technology
Total Page 7 Pages
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