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NCV1124 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCV1124
Description  Dual Variable−Reluctance Sensor Interface IC
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCV1124 Datasheet(HTML) 1 Page - ON Semiconductor

   
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© Semiconductor Components Industries, LLC, 2006
April, 2006 − Rev. 0
1
Publication Order Number:
NCV1124/D
NCV1124
Dual Variable−Reluctance
Sensor Interface IC
The NCV1124 is a monolithic integrated circuit designed primarily
to condition signals from sensors used to monitor rotating parts.
The NCV1124 is a dual channel device. Each of the two identical
channels interfaces with a variable−reluctance sensor, and
cont i nuous l y compares the sens o r out put si gnal to a
user−programmable internal reference. An alternating input signal of
appropriate amplitude at IN1 or IN2 will result in a rectangular
waveform at the corresponding OUT terminal, suitable for interface to
either standard microprocessors or standard logic families.
A diagnostic input, common to both channels, provides a means to
test for degradation or loss of the physical connector to both sensors.
Typical Applications
Anti−Skid Braking and Traction Control
Vehicle Stability Control
Drive Belt Slippage Detection
Crankshaft/Camshaft Position Sensing
Features
Two Independent Channels
Internal Hysteresis
Built−In Diagnostic Mode
Designed to Work from a 5.0 V "10% Supply
Site and Control for Automotive Applications
Pb−Free Packages are Available
Figure 1. Block Diagram
OUT1
To
mP
VCC
VCC VCC VCC
VCC
INP1
INAdj
DIAG
IN1
C1
R1
RRS
VRS
Variable
Reluctance
Sensor
+
COMP1
Active
Clamp
VCC
VCC
INP2
IN2
C2
R2
RRS
VRS
Variable
Reluctance
Sensor
+
COMP2
Active
Clamp
OUT2
To
mP
RAdj
GND
SO−8
CASE 751
V1124
= Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
MARKING DIAGRAM
1
8
V1124
ALYW4
G
DIAG
GND
18
OUT2
IN2
OUT1
IN1
VCC
INAdj
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
PIN CONNECTIONS
http://onsemi.com
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