APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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FEATURES

• DELIVERS UP TO 5A CONTINUOUS OUTPUT

• OPERATES AT SUPPLY VOLTAGES UP TO 60V

• TTL AND CMOS COMPATIBLE INPUTS

• NO “SHOOT-THROUGH” CURRENT

• THERMAL SHUTDOWN (OUTPUTS OFF) AT 160°C

• SHORTED LOAD PROTECTION (to VS or PGND or

SHORTED LOAD)

• NO BOOTSTRAP CAPACITORS REQUIRED

• PROGRAMMABLE ONBOARD PWM

APPLICATIONS

• DC MOTOR DRIVES

• POSITION AND VELOCITY SERVOMECHANISMS

• FACTORY AUTOMATION ROBOTS

• NUMERICALLY CONTROLLED MACHINERY

• COMPUTER PRINTERS AND PLOTTERS

• AUDIO AMPLIFICATION

FIGURE 1. BLOCK DIAGRAM

DESCRIPTION

The SA56 is a 5A PWM Amplifier designed for motion con-

trol applications. The device is built using a multi-technology

process which combines bipolar and CMOS control circuitry

with DMOS power devices in the same monolithic structure.

Ideal for driving DC and stepper motors; the SA56 accom-

modates peak output currents up to 10A. An innovative circuit

which facilitates low-loss sensing of the output current has

been implemented. On board PWM oscillator and comparator

are used to convert an analog signal into PWM direction and

magnitude for motor control applications, or to amplify audio

signals using class D amplification.

23 PIN SIP

PACkAGE STYLE EX