UDN2981A

UDN2981A Datasheet

UDN2981A-T2

Part	Datasheet
UDN2981A	UDN2981A (pdf)

Related Parts	Information
UDN2981A-T	UDN2981A-T

PDF Datasheet Preview
2981 and 2982 8-Channel Source Drivers 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 Packages: Not to scale 18-pin DIP Package A 20-pin SOICW package LW drop-in replacement for discontinued 18-pin SOIC variants 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. 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. The suffix “LW” package is provided in a 20-pin wide-body SOIC package with improved thermal characteristics compared to the 18-pin SOIC version it replaces 100% pin-compatible electrically . The A2982ELW driver is available for operation over an extended temperature range, down to -40°C. These packages are lead Pb free, with 100% matte-tin leadframe plating. Simplified Block Diagrams 18-pin DIP A Package 20-pin SOICW LW Package 29310T NC pins, 10 and 11, not present on discontinued 18-pin LW package 2981 and 2982 8-Channel Source Drivers Selection Guide Part Number A2982ELWTR-T1 Package 20-pin SOICW Packing 1000 per reel Ambient Temperature TA °C to 85 A2982SLWTR-T 20-pin SOICW 1000 per reel UDN2981A-T2 18-pin DIP 21 per tube to 85 UDN2982A-T2 18-pin DIP 21 per tube 1Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Status date change November 2, Deadline for receipt of LAST TIME BUY orders is April 30, 2Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Status date change January 30, Deadline for receipt of LAST TIME BUY orders is April 27, Absolute Maximum Ratings Characteristic Output Voltage Range Input Voltage Output Current Package Power Dissipation Operating Ambient Temperature Maximum Junction Temperature Storage Temperature

PDF Datasheet Preview

2981 and 2982 8-Channel Source Drivers

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

Packages:

Not to scale
18-pin DIP Package A
20-pin SOICW package LW drop-in replacement for discontinued 18-pin SOIC variants

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.

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.

The suffix “LW” package is provided in a 20-pin wide-body SOIC package with improved thermal characteristics compared to the 18-pin SOIC version it replaces 100% pin-compatible electrically . The A2982ELW driver is available for operation over an extended temperature range, down to -40°C.

These packages are lead Pb free, with 100% matte-tin leadframe plating.

Simplified Block Diagrams
18-pin DIP A Package
20-pin SOICW LW Package
29310T

NC pins, 10 and 11, not present on discontinued 18-pin LW package
2981 and 2982
8-Channel Source Drivers

Selection Guide Part Number

A2982ELWTR-T1

Package 20-pin SOICW

Packing 1000 per reel

Ambient Temperature TA °C
to 85

A2982SLWTR-T
20-pin SOICW
1000 per reel

UDN2981A-T2
18-pin DIP
21 per tube
to 85

UDN2982A-T2
18-pin DIP
21 per tube
1Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Status date change November 2, Deadline for receipt of LAST TIME BUY orders is April 30, 2Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Status date change January 30, Deadline for receipt of LAST TIME BUY orders is April 27,

Absolute Maximum Ratings Characteristic

Output Voltage Range

Input Voltage

Output Current Package Power Dissipation

Operating Ambient Temperature

Maximum Junction Temperature Storage Temperature

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Datasheet ID: UDN2981A 515998