SN75468, SN75469 DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
HIGH-VOLTAGE HIGH-CURR...
SN75468, SN75469 DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
HIGH-
VOLTAGE HIGH-CURRENT DARLINGTON TRANSISTOR ARRAYS
500-mA Rated Collector Current (Single
Output)
High-
Voltage Outputs . . . 100 V Output Clamp Diodes Inputs Compatible With Various Types of
Logic
Relay Driver Applications Higher-
Voltage Versions of ULN2003A and
ULN2004A, for Commercial Temperature
Range
description
D OR N PACKAGE (TOP VIEW)
1B 1 2B 2 3B 3 4B 4 5B 5 6B 6 7B 7
E8
16 1C 15 2C 14 3C 13 4C 12 5C 11 6C 10 7C 9 COM
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-kΩ 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 symbol†
logic diagram
1 1B
2 2B
3 3B
4 4B
5 5B
6 6B
7 7B
CLAMP
9 COM
16 1C
15 2C
14 3C
13 4C
12 5C
11 6C
10 7C
† This ...