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

• NO “SHOOT-THROUGH” CURRENT

• THERMAL SHUTDOWN (OUTPUTS OFF) AT 160°C

LOAD)

• NO BOOTSTRAP CAPACITORS REQUIRED

• PROGRAMMABLE ONBOARD PWM

APPLICATIONS

• DC BRUSH-TYPE MOTOR DRIVES

• POSITION AND VELOCITY SERVOMECHANISMS

• FACTORY AUTOMATION ROBOTS

• NUMERICALLY CONTROLLED MACHINERY

• COMPUTER PRINTERS AND PLOTTERS

FIGURE 1. BLOCK DIAGRAM

DESCRIPTION

The SA56 is a 5-ampere PWM Amplifier designed for motion

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

process that combines bipolar and CMOS control circuitry with

DMOS power devices in a single monolithic structure. Ideal

for driving DC and stepper motors, the SA56 accommodates

peak output currents up to 10 amperes. An innovative circuit

that facilitates low-loss sensing of the output current has been

implemented. An on-board PWM oscillator and comparator

are used to convert an analog signal into PWM direction of

rotation and magnitude for motor control applications. TTL or

CMOS digital inputs allow direct external control in 2-quadrant

or 4-quadrant modes.

23 PIN SIP

PACkAGE STYLE EX

M I C R O T E C H N O L O G Y

SA56