5890 Datasheet, PDF (2/8 Pages) Allegro MicroSystems – BIMOS II 8-BIT SERIAL-INPUT, LATCHED SOURCE DRIVERS

5890 AND 5891
8-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVERS
2.5
2.0
SUFFIX 'A', R _θJA = 60°C/W
1.5
1.0
SUFFIX 'LW', R = 80°C/W
θJA
0.5
0
25
50
75
100
125
150
AMBIENT TEMPERATURE IN °C
Dwg. GP-018B
TYPICAL INPUT CIRCUIT
VDD
IN
Dwg. EP-010-4A
TYPICAL OUTPUT DRIVER
V_BB
OUT
Dwg. No. A-12,648
FUNCTIONAL BLOCK DIAGRAM
CLOCK
SERIAL
DATA IN
8-BIT SERIAL-PARALLEL SHIFT REGISTER
STROBE
GROUND
MOS
BIPOLAR
LATCHES
SERIAL
DATA OUT
VDD
OUTPUT
ENABLE
VBB
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
Dwg. No. A-12,654
Number of
Outputs On at
I_OUT = -200 mA
8
7
6
5
4
3
2
1
UCN5890/91A Max. Allowable Duty Cycle
50°C
at T_A of
60°C
70°C
53%
60%
70%
83%
100%
100%
100%
100%
47%
54%
64%
75%
94%
100%
100%
100%
41%
48%
56%
67%
84%
100%
100%
100%
Number of
Outputs On at
I_OUT = -200 mA
8
7
6
5
4
3
2
1
UCN5890/91LW Max. Allowable Duty Cycle
at T_A of
50°C
60°C
70°C
40%
45%
53%
62%
80%
100%
100%
100%
35%
41%
48%
56%
71%
96%
100%
100%
31%
36%
42%
50%
62%
84%
100%
100%
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