UDN2981A 8-CHANNEL SOURCE DRIVERS

UDN2981A 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

oads. 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 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

nput current limiting resistors and output transient suppression diodes, and

are activated by an active high input.

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.

The suffix ‘LW’ (UDN2982LW only) indicates an 18-lead surfacemountable wide-body SOIC package; the A2982SLW is provided in a 20-lead

wide-body SOIC package with improved thermal characteristics.

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.

 

■ 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

 

at 25°C Free-Air Temperature

Output Voltage Range, VCE . . . . . . 5 V to 50 V

Input Voltage, VIN

UDN2981A. . . . . . . . . . . . . . . . . . . . . . . . 15 V

UDN2982A, UDN2982LW, and,

A2982SLW . . . . . . . . . . . . . . . . . . . . . . . 20 V

Output Current, IOUT . . . . . . . . . . . . . . -500 mA

Package Power Dissipation,

PD . . . . . . . . . . . . . . . . . . . . . . . See Graph

Operating Temperature Range,

TA . . . . . . . . . . . . . . . . . . . . -20°C to +85°C

Storage Temperature Range,

TS . . . . . . . . . . . . . . . . . . . -55°C to +150°C