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

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FEATURES

• 500kHz SWITCHING

• FULL BRIDGE OUTPUT 5-40V (80V P-P)

• 5A OUTPUT

• FAULT PROTECTION

• SHUTDOWN CONTROL

• SYNCHRONIZABLE CLOCK

• HERMETIC PACKAGE

APPLICATIONS

• HIGH FIDELITY AUDIO AMPLIFIER

• BRUSH TYPE MOTOR CONTROL

• VIBRATION CANCELLING AMPLIFIER

DESCRIPTION

The SA07 amplifier is a 40 volt, 500kHz PWM amplifier. The

full bridge output circuit provides 5 amps of continuous drive

current for applications as diverse as high fidelity audio and

brush type motors. Clock output and input pins can be used for

synchronization with other amplifiers or an externally generated

clock. An integrator amplifier is provided. Direct access to the

pwm input is provided for connection to digital motion control

circuits. Protection circuits guard against thermal overloads

as well as shorts to supply or ground. The current limit is pro-

grammable with one or two external resistors depending on

the application. A shutdown input disables all output bridge

drivers. The 18 pin steel package is hermetically sealed.

BLOCK DIAGRAM AND

TYPICAL APPLICATION

CONNECTIONS

HIGH FIDELITY

AUDIO

EXTERNAL CONNECTIONS

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18-PIN DIP

PACKAGE STYLE EL

Case tied to Pin 7. Allow no current in case. Bypassing of sup-

plies is required. If +PWM > RAMP then A OUT > B OUT.