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SGS

L290 Datasheet Preview

L290 Datasheet

TACHOMETER CONVERTER

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LINEAR INTEGRATED CIRCUIT
TACHOMETER CONVERTER
The L290, a monolithic LSI circuit in a 16-lead dual in-line plastic package, is intended for use with the
L291 and L292 which together form a complete 3-chip DC motor positioning system for applications
such as carriage/daisy-wheel position control in typewriters.
The L290/1/2 system can be directly controlled by a microprocessor. The L290 integrates the following
functions:
- tacho voltage generator (FIV converter)
reference voltage generator
- position pulse generator.
ABSOLUTE MAXIMUM RATINGS
vs Supply voltage
VI (FTA, FTB, FTF) Input signals
Ptot Total power dissipation Tamb = 70°C
Tstg' TJ Storage and junction temperature
± 15
±7
1
-40 to +150
V
V
W
°C
ORDERING NUMBER: L290 B
MECHANICAL DATA
Dimensions in mm
6182
98




SGS

L290 Datasheet Preview

L290 Datasheet

TACHOMETER CONVERTER

No Preview Available !

CONNECTION DIAGRAM
(top view)
FTB
VAB
Vre-t
TACHO 4
'V s
Vbias. 6
VMB
VMA
16 FTA
15 VAA
14 STA
13 srB
12 FTF
11 GND
10 STF
9 -Vs
5 - lo 159
BLOCK DIAGRAM
, 6 FTA
FTS
11.. STA
13 STS
Vbias
11
GNO i
"VS:
TACHO 4
~
FTF 12
STF
10
VAA VAS
15
VMS VMA
78
VrE'f
5- 41L. 312
99


Part Number L290
Description TACHOMETER CONVERTER
Maker SGS
Total Page 6 Pages
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