CS289 Cherry Semiconductor Corporation, CS289 Datasheet

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CS289

Manufacturer Part Number
CS289
Description
CS28920mA Air-Core Tachometer Drive Circuit
Manufacturer
Cherry Semiconductor Corporation
Datasheet
Rev. 3/8/99
20mA Air-Core Tachometer Drive Circuit
The CS289 is specifically designed
for use with air-core meter move-
ments. The IC has charge pump cir-
cuitry for frequency-to-voltage con-
version, a shunt regulator for stable
Supply Voltage (V
Operating Temperature ............................................................Ð40¡C to +100¡C
Junction Temperature..................................................................Ð40¡C to 150¡C
Storage Temperature.................................................................Ð65¡C to +150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only)...........10 sec. max, 260¡C peak
Reflow (SMD styles only)............60 sec. max above 183¡C, 230¡C peak
Pwr Gnd
V
Z
Generator
Function
V
V
CC
SINE
CC
)......................................................................................20V
Absolute Maximum Ratings
V
Description
COS
Block Diagram
Regulator
V
V
BIAS
REG
operation, a function generator, and
sine and cosine amplifiers. The
buffered sine and cosine outputs
will typically sink or source 20mA.
S
Q
C
IN
p
Ð
CS289
Ð
S
Q
C
+
OUT
P
+
Charge
1
Pump
Gnd
F/V OUT
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Cherry Semiconductor Corporation
Web Site: www.cherry-semi.com
Single Supply Operation
On-Chip Regulation
20mA Output Drive
Capability
Email: info@cherry-semi.com
V
V
V
V
Package Options
SINE
BIAS
C
C
Gnd
SINE
C
BIAS
Gnd
Gnd
Gnd
Gnd
C
NC
P
(internally fused leads)
V
P
NC
V
P
P
+
Z
Ð
Z
Ð
+
20L SOIC Wide
Features
1
1
14L PDIP
A
Pwr Gnd
V
V
V
S
S
F/V
CC
COS
REG
Q
Q
¨
V
V
V
Gnd
Gnd
Gnd
Gnd
S
S
F/V
IN
OUT
OUT
CC
COS
REG
Q
Q
Company
IN
OUT
OUT

Related parts for CS289

CS289 Summary of contents

Page 1

... Air-Core Tachometer Drive Circuit Description The CS289 is specifically designed for use with air-core meter move- ments. The IC has charge pump cir- cuitry for frequency-to-voltage con- version, a shunt regulator for stable Absolute Maximum Ratings Supply Voltage (V )......................................................................................20V CC Operating Temperature ............................................................Ð40¡C to +100¡C Junction Temperature..................................................................Ð ...

Page 2

Electrical Characteristics: (V PARAMETER Supply Current (Note Regulated Voltage I Regulation I Signal Input Current T = 25¡C Saturation Voltage I Leakage Current I Input Current Output V V Linearity E V ...

Page 3

PACKAGE PIN # 20L SO 14L PDIP Note 1: V measured measured V sine sine Z COS Note 2: Max PWR dissipation ²V X ...

Page 4

... MV CC Figure 1. Functional Diagram of CS289 Circuit. Circuit Description The output waveforms of the sine and cosine amplifiers are derived by On-Chip Amplifier/Comparator circuitry. The various trip points for the circuit (i.e. 90¡, 180¡, 270¡) ...

Page 5

RPM CYL. = Frequency 2.1 + Frequency F/V OUT The above equations were used in calculating the follow- ing values, where V = 7.1V at =270¡ and ...

Page 6

... REF: JEDEC MS-001 REF: JEDEC MS-013 Ordering Information Part Number Description CS289GDWF20 20 Lead SO Wide (internally fused leads) CS289GDWFR20 20 Lead SO Wide (internally fused leads) (tape & reel) CS289GN14 14 Lead PDIP Rev. 3/8/99 Package Specification Thermal Data D English R ...

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