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CS4122XDWFR24

Description
Triple Air-Core Gauge Driver with Serial Input Bus
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size95KB,9 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet Parametric View All

CS4122XDWFR24 Overview

Triple Air-Core Gauge Driver with Serial Input Bus

CS4122XDWFR24 Parametric

Parameter NameAttribute value
Brand NameON Semiconduc
Is it lead-free?Contains lead
MakerON Semiconductor
Parts packaging codeSOIC
package instructionSOIC-24
Contacts24
Manufacturer packaging code0.0751
Reach Compliance Code_compli
ECCN codeEAR99
Built-in protectionTHERMAL
Interface integrated circuit typeBUFFER OR INVERTER BASED PERIPHERAL DRIVER
JESD-30 codeR-PDSO-G24
Number of functions1
Number of terminals24
Maximum operating temperature105 °C
Minimum operating temperature-40 °C
Nominal output peak current0.08 A
Package body materialPLASTIC/EPOXY
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Certification statusNot Qualified
Maximum supply voltage5.5 V
Minimum supply voltage4.5 V
Nominal supply voltage5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal locationDUAL
CS4122
Triple Air−Core Gauge
Driver with Serial Input Bus
The CS4122 converts digital data from a microprocessor to
complementary DC outputs and drives air−core meter movements for
vehicle instrument panels. It is optimized for one 360° gauge and two
112° gauges. The digital data controls the voltage applied to the
quadrature coils of the meters with a 0.35° resolution for the major
(360°) gauge and 0.44° resolution for the minor (112°) gauges. The
accuracy is
±0.75°
for the major and
±1.00°
for the minors. The
interface from the microcontroller is by a SPI compatible serial
connection using up to a 2.0 MHz shift clock rate.
The digital code is shifted into the appropriate DAC and
multiplexer. These two blocks provide a tangential conversion
function to change the digital data into the appropriate DC coil
voltage. The major gauge driver can position a pointer anywhere
within a 360° circle while the minor gauge drivers are limited to an arc
of 112.2°.
The output buffers are capable of 70 mA per coil and are protected
against output short circuit conditions. A thermal protection circuit
limits the junction temperature to approximately 160°C.
An open−drain fault output goes low when any of the outputs are
shorted or the device is in a thermal shutdown state. This ASIC is
designed on POWERSENSEt 3.0.
Features
http://onsemi.com
24
1
SOIC−24 WB
DWF SUFFIX
CASE 751E
MARKING DIAGRAM
24
CS4122
AWLYYWWG
1
CS4122
A
WL
YY
WW
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
Serial Input Bus
2.0 MHz Operating Frequency
Independently Addressable Gauges
Tangential Drive Algorithm
70 mA Drive Circuits
0.75° Major Accuracy
Power−On−Reset
Protection Features
Short Circuit
Overtemperature
Internally Fused Leads in SOIC−24 WB Package
Pb−Free Packages are Available*
PIN CONNECTIONS
SCLK
CS
SIN−
SIN+
GND
GND
GND
GND
V
BB
/2
C1+
C1−
V
CC
1
24
SO
SI
COS+
COS−
GND
GND
GND
GND
C2−
C2+
V
BB
FAULT
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2005
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
1
September, 2005 − Rev. 9
Publication Order Number:
CS4122/D
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