CS4121EDWFR20G Datasheet, PDF (1/12 Pages) ON Semiconductor – Low Voltage Precision Air-Core Tach/Speedo Driver

CS4121
Low Voltage Precision
Air−Core Tach/Speedo
Driver
The CS4121 is specifically designed for use with air−core meter
movements. The IC provides all the functions necessary for an analog
tachometer or speedometer. The CS4121 takes a speed sensor input
and generates sine and cosine related output signals to differentially
drive an air−core meter.
Many enhancements have been added over industry standard
tachometer drivers such as the CS289 or LM1819. The output utilizes
differential drivers which eliminates the need for a Zener reference
and offers more torque. The device withstands 60 V transients which
decreases the protection circuitry required. The device is also more
precise than existing devices allowing for fewer trims and for use in a
speedometer.
The CS4121 is compatible with the CS8190, and provides higher
accuracy at a lower supply voltage (8.0 V min. as opposed to 8.5 V). It
is functionally operational to 6.5 V.
Features
• Pb−Free Package is Available*
• Direct Sensor Input
• High Torque Output
• Low Pointer Flutter
• High Input Impedance
• Overvoltage Protection
• Accurate to 8.0 V Functional to 6.5 V (typ)
• Internally Fused Leads in SO−20 Package and DIP−16
ABSOLUTE MAXIMUM RATINGS
Rating
Value Unit
Supply Voltage, V_CC
< 100 ms Pulse Transient
60
V
Continuous
24
V
Operating Temperature (T_J)
Storage Temperature
−40 to +105 °C
−40 to +165 °C
Junction Temperature
−40 to +150 °C
ESD (Human Body Model)
4.0
kV
Lead Temperature Soldering:
Wave Solder (through hole styles only) (Note 1) 260 peak °C
Reflow: (SMD styles only) (Note 2)
230 peak °C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits
are exceeded, device functional operation is not implied, damage may occur
and reliability may be affected.
1. 10 seconds maximum.
2. 60 second maximum above 183°C.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
20
1
SO−20L
DWF SUFFIX
CASE 751D
16
1
DIP−16
NF SUFFIX
CASE 648
ORDERING INFORMATION
Device
Package
CS4121EDWF20 SO−20L
CS4121EDWF20G SO−20L
(Pb−Free)
CS4121EDWFR20 SO−20L
CS4121ENF16
DIP−16
Shipping^†
37 Units/Rail
37 Units/Rail
1000 Tape&Reel
25 Units/Rail
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
DEVICE MARKING INFORMATION
See specific marking information and pin connection
information on page 4 of this data sheet.
© Semiconductor Components Industries, LLC, 2004
1
June, 2004 − Rev. 8
Publication Order Number:
CS4121/D