MIC2803/2804

Micrel

6-34

April 1998

MIC2803/2804

High-Voltage High-Current Darlington Array

Not Recommended for New Designs

General

The MIC2803 and MIC2804 are high-voltage, high-current

Darlington arrays ideal for switching high-power loads from

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

The MIC2803/4 Darlington transistor array can be used to

manage multiple loads of up to 50V and 500mA, limited by

package power dissipation.

The MIC2803 features inputs compatible with 5V TTL and

CMOS logic while the MIC2804 features inputs compatible

with 6V to 15V CMOS or PMOS logic outputs.

The MIC2803/4 is available in 18-pin plastic DIP and wide

SOIC packages in the –40

°C to +85°C temperature range.

Functional Diagrams

OUT1

OUT2

OUT3

OUT4–OUT7

OUT8

MIC2803

MIC2804

4

IN1

IN2

IN3

IN4–IN7

IN8

118

217

316

4–7

15–12

811

COM

10

GND

9

Features

• Output voltage to 50V

• Output current to 500mA

• Open-collector outputs

• Integral clamp diodes

• TTL, CMOS, or PMOS compatible inputs

Applications

• Relay and solenoid switching

• Stepping motor

• LED and incandescent displays

Ordering Information

Part Number

Temperature Range

Package

MIC2803BN

–40

°C to +85°C

18-pin DIP

MIC2803BWM

–40

°C to +85°C

18-pin wide SOIC

MIC2804BN

–40

°C to +85°C

18-pin DIP

MIC2804BWM

–40

°C to +85°C

18-pin wide SOIC

7.2K

3K

COM

IN

OUT

2.7k

Typical MIC2803 Darlington Driver

7.2K

3K

COM

IN

OUT

10.5k

Typical MIC2804 Darlington Driver