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DS75493 Datasheet

  • DS75493

  • Quad LED Segment Driver

  • 4頁

  • NSC

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DS55493 DS75493 Quad LED Segment Driver
April 1990
DS55493 DS75493 Quad LED Segment Driver
General Description
The DS55493 DS75493 is a quad LED segment driver It is
designed to interface between MOS IC鈥檚 and LED鈥檚 An ex-
ternal resistor is required for each segment to drive the out-
put current which is approximately equal to 0 7V R
L
and is
relatively constant independent of supply variations Blank-
ing can be achieved by taking the chip enable (CE) to a
logical 鈥樷€?鈥欌€?level
Features
Y
Y
Y
Y
Y
Y
Low voltage operation
Low input current for MOS compatibility
Low standby power
Display blanking capability
Output current regulation
Quad high gain circuits
Schematic and Connection Diagrams
TL F 7561 鈥?1
Dual-In-Line Package
Truth Table
CE
0
0
1
X
e
Don鈥檛 care
V
IN
1
0
X
I
OUT
ON
OFF
OFF
TL F 7561 鈥?2
Order Number DS55493J DS75493J
or DS75493N
See NS Package Number J16A or N16A
C
1995 National Semiconductor Corporation
TL F 7561
RRD-B30M105 Printed in U S A

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