Table 5-1. Pin Functions

PIN

I/O

DESCRIPTION

NAME(1)

SOIC,

TSSOP,

DYY

X2QFN

WQFN

OUT1 (1)

1

14

16

Output

Output pin of the comparator 2

OUT2 (1)

2

1

15

Output

Output pin of the comparator 1

VCC

3

2

1

—

Positive supply

IN2– (1)

4

3

5

Input

Negative input pin of the comparator 1

IN2+ (1)

5

4

6

Input

Positive input pin of the comparator 1

IN1– (1)

6

5

2

Input

Negative input pin of the comparator 2

IN1+ (1)

7

6

4

Input

Positive input pin of the comparator 2

IN3–

8

7

7

Input

Negative input pin of the comparator 3

IN3+

9

8

8

Input

Positive input pin of the comparator 3

IN4–

10

9

9

Input

Negative input pin of the comparator 4

IN4+

11

10

11

Input

Positive input pin of the comparator 4

GND

12

11

12

—

Negative supply

OUT4

13

12

13

Output

Output pin of the comparator 4

OUT3

14

13

14

Output

Output pin of the comparator 3

NC

—

—

3

—

No Internal Connection - Leave floating or GND

NC

—

—

10

—

No Internal Connection - Leave floating or GND

Thermal Pad

—

—

PAD

—

Connect directly to GND pin

(1)

Some manufacturers transpose the names of channels 1 & 2. Electrically the pinouts are identical, just a difference in channel naming

convention.

LM2901-Q1, LM2901V-Q1, LM2901AV-Q1, LM2901B-Q1

SLCS142G – DECEMBER 2003 – REVISED MARCH 2023

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