ꢀ
ꢋ
ꢕ
ꢁꢂꢃ ꢄ ꢄ ꢅ ꢆꢇ ꢀ ꢁ ꢂꢃ ꢄ ꢄ ꢃ ꢆꢇ ꢀꢁ ꢂꢃ ꢄ ꢄ ꢈ ꢆꢇ ꢀꢁ ꢂ ꢃ ꢄ ꢄꢉ ꢆ ꢇ ꢀꢁ ꢊ ꢃ ꢄ ꢄ ꢈꢆ ꢇ ꢀꢁ ꢊ ꢃ ꢄ ꢄ ꢉ ꢆ
ꢌꢍ ꢋꢎꢏ ꢐꢁꢑꢆ ꢍꢒ ꢋꢌ ꢍ ꢋꢎꢓ ꢀꢔꢔ ꢒꢂꢑ
The ULN2001A is obsolete
and is no longer supplied.
ꢆꢔ
ꢁ
ꢌ
ꢂ
ꢍ
ꢑ
ꢐ
ꢂ
ꢑꢔ
ꢆ
ꢂ
ꢖ
ꢌ
ꢖ
ꢑ
ꢐ
ꢔ
ꢆ
ꢔ
ꢔ
ꢆ
ꢗ
SLRS027G − DECEMBER 1976 − REVISED JUNE 2004
description/ordering information (continued)
The ULN2001A is a general-purpose array and can be used with TTL and CMOS technologies. The ULN2002A
is designed specifically for use with 14-V to 25-V PMOS devices. Each input of this device has a Zener diode
and resistor in series to control the input current to a safe limit. The ULN2003A and ULQ2003A have a 2.7-kΩ
series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices. The
ULN2004A and ULQ2004A have a 10.5-kΩ series base resistor to allow operation directly from CMOS devices
that use supply voltages of 6 V to 15 V. The required input current of the ULN/ULQ2004A is below that of the
ULN/ULQ2003A, and the required voltage is less than that required by the ULN2002A.
logic diagram
9
COM
1C
1
2
3
4
5
6
7
16
1B
2B
3B
4B
5B
6B
7B
15
14
13
12
11
10
2C
3C
4C
5C
6C
7C
2
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