ꢀꢁ ꢂꢃ ꢄ ꢄ ꢅ ꢆꢇ ꢀ ꢁꢂ ꢃ ꢄ ꢄꢃ ꢆ ꢇ ꢀꢁ ꢂꢃ ꢄ ꢄ ꢈ ꢆꢇ ꢀꢁ ꢂꢃ ꢄ ꢄ ꢉ ꢆꢇ ꢀꢁ ꢊ ꢃ ꢄ ꢄ ꢈꢆ ꢇ ꢀ ꢁꢊ ꢃꢄ ꢄꢉ ꢆ
ꢋꢌ ꢍꢋ ꢎꢏꢐ ꢁꢑꢆꢍ ꢒ ꢋꢌ ꢍꢋ ꢎꢓ ꢀꢔ ꢔ ꢒꢂ ꢑ
ꢕꢆꢔ ꢁꢌ ꢂꢍ ꢑꢐ ꢂ ꢑ ꢔꢆꢂꢖ ꢌꢖꢑꢐꢔ ꢆ ꢔꢔ ꢆꢗ
The ULN2001A is obsolete
and is no longer supplied.
SLRS027G − DECEMBER 1976 − REVISED JUNE 2004
schematics (each Darlington pair)
COM
COM
Output
C
Output
C
7 V
10.5 kΩ
Input
B
Input
B
7.2 kΩ
E
7.2 kΩ
3 kΩ
3 kΩ
E
ULN2001A
ULN2002A
COM
Output
C
R
B
Input
B
ULN/ULQ2003A: R = 2.7 kΩ
B
B
ULN/ULQ2004A: R = 10.5 kΩ
7.2 kΩ
3 kΩ
E
ULN2003A, ULN2004A, ULQ2003A, ULQ2004A
All resistor values shown are nominal.
3
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