CS8191 Datasheet, PDF (1/12 Pages) Cherry Semiconductor Corporation – Precision Air-Core Tach/Speedo Driver with Short Circuit Protection

CS8191
Precision Air-Core
Tach/Speedo Driver with
Short Circuit Protection
The CS8191 is specifically designed for use with 4 quadrant
air–core meter movements. The IC includes an input comparator for
sensing input frequency such as vehicle speed or engine RPM, a
charge pump for frequency to voltage conversion, a bandgap reference
for stable operation and a function generator with sine and cosine
amplifiers that differentially drive the meter coils.
The CS8191 has a higher torque output and better output signal
symmetry than other competitive parts (CS289, and LM1819). It is
protected against short circuit and overvoltage (60 V) fault conditions.
Enhanced circuitry permits functional operation down to 8.0 V.
Features
• Direct Sensor Input
• High Output Torque
• Wide Output Voltage Range
• High Impedance Inputs
• Accurate Down to 10 V V_CC
• Fault Protection
– Overvoltage
– Short Circuit
– Low Voltage Operation
• Internally Fused Leads in DIP–16 and SO–20L Packages
http://onsemi.com
16
1
DIP–16
NF SUFFIX
CASE 648
20
1
SO–20L
DWF SUFFIX
CASE 751D
PIN CONNECTIONS AND
MARKING DIAGRAM
1
V_CC
V_REG
BIAS
DIP–16
16
F/V_OUT
CP+
CP–
GND
GND
GND
GND
COS–
COS+
SINE–
SINE+
FREQ_IN
SQ_OUT
SO–20L
1
20
V_CC
F/V_OUT
V_REG
CP+
BIAS
CP–
NC
NC
GND
GND
GND
GND
NC
NC
COS–
COS+
SIN–
SIN+
FREQ_IN
SQ_OUT
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS8191XNF16
DIP–16 25 Units/Rail
CS8191XDWF20
SO–20L 37 Units/Rail
CS8191XDWFR20 SO–20L 1000 Tape & Reel
© Semiconductor Components Industries, LLC, 2001
1
March, 2001 – Rev. 4
Publication Order Number:
CS8191/D