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5890 Datasheet(PDF) 2 Page - Allegro MicroSystems

Part No. 5890
Description  BIMOS II 8-BIT SERIAL-INPUT, LATCHED SOURCE DRIVERS
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

5890 Datasheet(HTML) 2 Page - Allegro MicroSystems

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5890 AND 5891
8-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVERS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Dwg. No. A-12,654
FUNCTIONAL BLOCK DIAGRAM
8-BIT SERIAL-PARALLEL SHIFT REGISTER
GROUND
STROBE
SERIAL
DATA IN
CLOCK
LATCHES
MOS
BIPOLAR
VBB
SERIAL
DATA OUT
VDD
OUTPUT
ENABLE
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
Number of
UCN5890/91A Max. Allowable Duty Cycle
Outputs On at
at
T
A
of
I
OUT
= -200 mA
50
°C60°C70°C
8
53%
47%
41%
7
60%
54%
48%
6
70%
64%
56%
5
83%
75%
67%
4
100%
94%
84%
3
100%
100%
100%
2
100%
100%
100%
1
100%
100%
100%
Copyright © 1985, 2000 Allegro MicroSystems, Inc.
50
75
100
125
150
2.5
0.5
0
AMBIENT TEMPERATURE IN
°C
2.0
1.5
1.0
25
Dwg. GP-018B
SUFFIX 'A', R
= 60
°C/W
θJA
SUFFIX 'LW', R
= 80
°C/W
θJA
Dwg. EP-010-4A
IN
V
DD
TYPICAL INPUT CIRCUIT
Dwg. No. A-12,648
VBB
OUT
TYPICAL OUTPUT DRIVER
Number of
UCN5890/91LW Max. Allowable Duty Cycle
Outputs On at
at
T
A
of
I
OUT
= -200 mA
50
°C60°C70°C
8
40%
35%
31%
7
45%
41%
36%
6
53%
48%
42%
5
62%
56%
50%
4
80%
71%
62%
3
100%
96%
84%
2
100%
100%
100%
1
100%
100%
100%


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