2981AND
2982
8-CHANNEL SOURCE DRIVERS
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.
UDN2981A
1
2
3
18
17
16
All devices may be used with 5 V logic systems — TTL, Schottky TTL,
DTL, and 5 V CMOS. The UDN2981A, UDN2982A, and A2982SLW are
electrically interchangeable, 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.
4
5
15
14
6
7
13
12
The suffix ‘A’ (all devices) 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.
11
8
GND
VS
Dwg. No. A-10, 243
Note that the UDN2980A series (dual in-line
package) and UDN2980LW series (small-outline
IC package) are electrically identical and share a
common terminal number assignment.
The suffix ‘LW’ (UDN2982LW only) indicates an 18-lead surface-
mountable wide-body SOIC package; the A2982SLW is provided in a 20-lead
wide-body SOIC package with improved thermal characteristics.
ABSOLUTE MAXIMUM RATINGS
The UDN2982A, UDN2982LW, and A2982SLW drivers are also
available for operation over an extended temperature range to -40°C. To
order, change the prefix ‘UDN’ to ‘UDQ’ or the suffix ‘SLW’ to ‘ELW’.
These packages are available in Pb (lead) free variants (suffix ‘-T’), with
100% matte-tin leadframe plating.
at 25°C Free-Air Temperature
Output Voltage Range, VCE . . . . . . 5 V to 50 V
Input Voltage, VIN
UDN2981A. . . . . . . . . . . . . . . . . . . . . . . . 15 V
UDN2982A, UDN2982LW, and,
FEATURES
A2982SLW . . . . . . . . . . . . . . . . . . . . . . . 20 V
Output Current, IOUT . . . . . . . . . . . . . . -500 mA
Package Power Dissipation,
■ TTL, DTL, PMOS, or CMOS Compatible Inputs
■ 500 mA Output Source Current Capability
■ Transient-Protected Outputs
PD . . . . . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range,
■ Output Breakdown Voltage to 50 V
■ DIP or SOIC Packaging
TA . . . . . . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
TS . . . . . . . . . . . . . . . . . . . -55°C to +150°C
Always order by complete part number, e.g., UDN2981A .
Note that all devices are not available in all package styles.
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