2981 and 2982
8-Channel Source Drivers
Features and Benefits
Description
▪ TTL, DTL, PMOS, or CMOS compatible inputs
▪ 500 mA output source current capability
▪ Transient-protected outputs
▪ Output breakdown voltage to 50 V
▪ DIP or SOIC packaging
Recommended for high-side switching applications that benefit
from separate logic and load grounds, these devices encompass
load supply voltages to 50 V and output currents to -500 mA.
These 8-channel source drivers are useful for interfacing
between low-level logic and high-current loads. Typical loads
include relays, solenoids, lamps, stepper and/or servo motors,
print hammers, and LEDs.
All devices may be used with 5 V logic systems — TTL, Schottky
TTL, DTL, and 5 V CMOS. The device packages offered are
electrically interchangeable, and will withstand a maximum
output off voltage of 50 V, and operate to a minimum of 5 V. All
devices in this series integrate input current limiting resistors
and output transient suppression diodes, and are activated by
an active high input.
Packages:
The suffix “A” indicates an 18-lead plastic dual in-line package
with copper lead frame for optimum power dissipation. Under
normal operating conditions, these devices will sustain 120 mA
continuously for each of the eight outputs at an ambient
temperature of +50°C and a supply of 15 V.
18-pin DIP (suffix A)
18- and 20-pin
SOICW (suffix LW)
The suffix “LW” packages are provided in a 20-lead widebody SOIC package with improved thermal characteristics.
The A2982ELW drivers are available for operation over an
extended temperature range to -40°C.
These packages are Pb (lead) free (suffix ‘-T’), with 100%
matte-tin leadframe plating.
Not to scale
Simplified Block Diagram
18-pin A Package
29310L
20-pin LW Package
(NC pins omitted for 18-pin package)
