June 2005

1

MIC2981/2982

MIC2981/2982

Micrel, Inc.

MIC2981/2982

High-Voltage High-Current Source Driver Array

General

The MIC2981/82 is an 8-channel, high-voltage, high-current

source driver array ideal for switching high-power loads from

logic-level TTL, CMOS, or PMOS control signals.

These drivers can manage multiple loads of up to 50V and

500mA, limited only by package power dissipation.

Micrel’s MIC2981/82 features inputs compatible with 5V TTL

and 5V to 15V CMOS or PMOS logic outputs. Micrel’s

dual-marked device replaces either UDN2981 or UDN2982

devices.

The MIC2981/82 is available in the 18-pin plastic DIP and

18-lead wide SOP package. Both devices operate in the

industrial temperature range.

Functional Diagrams

OUT1

OUT2

OUT3

OUT4–OUT7

OUT8

MIC2981

MIC2982

4

IN1

IN2

IN3

IN4–IN7

IN8

GND

Features

•Output voltage to 50V

•Output current to 500mA

•Transient-protected outputs

• Integral clamp diodes

• TTL, CMOS, or PMOS compatible inputs

Applications

•Relay and solenoid switching

•Stepping motor

•LED and incandescent displays

IN

OUT

GND

1.5k

20k

800Ω

1.8k

Typical MIC2891/2982 Source Driver

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Ordering Information

Part Number

Reference

Manufacturing*

PbFree

Temperature Range

Package

MIC2981BN**

MIC2981/82BN

MIC2981/82YN

–40ºC to +85ºC

18-pin DIP

MIC2982BN**

MIC2981/82BN

MIC2981/82YN

–40ºC to +85ºC

18-pin DIP

MIC2981BWM**

MIC2981/82BWM

MIC2981/82YWM

–40ºC to +85ºC

18-pin wide SOP

MIC2982BWM**

MIC2981/82BWM

MIC2981/82YWM

–40ºC to +85ºC

18-pin wide SOP

*Order entry P/N.

**Orders for MIC2981BN or MIC2982BN will be filled with dual-marked MIC2981/82BN.

**Orders for MIC2981YN or MIC2982YN will be filled with dual-marked MIC2981/82YN.

**Orders for MIC2981BWM or MIC2982BWM will be filled with dual-marked MIC2981/82BWM.

**Orders for MIC2981YWM or MIC2982YWM will be filled with dual-marked MIC2981/82YWM.