SA56 Datasheet, PDF (1/7 Pages) Cirrus Logic – PULSE WIDTH MODULATION AMPLIFIER

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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
23 Pin SIP
Package Style EX
• POSITION AND VELOCITY SERVOMECHANISMS
DESCRIPTION
• FACTORY AUTOMATION ROBOTS
• NUMERICALLY CONTROLLED MACHINERY
• COMPUTER PRINTERS AND PLOTTERS
• AUDIO AMPLIFICATION
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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.
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