SN75468, SN75469

DARLINGTON TRANSISTOR ARRAYS

SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995

Copyright

3–1

POST OFFICE BOX 655303

HIGH-VOLTAGE HIGH-CURRENT DARLINGTON TRANSISTOR ARRAYS

Output)

Logic

ULN2004A, for Commercial Temperature

Range

description

The SN75468 and SN75469 are monolithic high-voltage, high-current Darlington transistor arrays. Each

consists of seven npn Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes

for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. The Darlington pairs

may be paralleled for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers,

display drivers (LED and gas discharge), line drivers, and logic buffers.

The SN75468 has a 2700-

Ω series base resistor for each Darlington pair for operation directly with TTL or 5-V

CMOS. The SN75469 has a 10.5-k

Ω series base resistor to allow its operation directly with CMOS or PMOS

that use supply voltages of 6 to 15 V. The required input current is below that of the SN75468.

logic diagram

7B

6B

5B

4B

3B

2B

1B

7C

6C

5C

4C

3C

2C

1C

COM

7

6

5

4

3

2

1

10

11

12

13

14

15

16

9

7C

6C

5C

4C

3C

2C

1C

COM

7

6

5

4

3

2

1

7B

6B

5B

4B

3B

2B

1B

10

11

12

13

14

15

16

9

CLAMP

† This symbol is in accordance with ANSI/IEEE

Std91-1984 and IEC publication 617-12.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1B

2B

3B

4B

5B

6B

7B

E

1C

2C

3C

4C

5C

6C

7C

COM

(TOP VIEW)

D OR N PACKAGE

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.