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SA03 Datasheet(PDF) 1 Page - Cirrus Logic

Part # SA03
Description  PULSE WIDTH MODULATION AMPLIFIER
PDF  4 Pages
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Manufacturer  APEX [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo APEX - Cirrus Logic

SA03 Datasheet(HTML) 1 Page - Cirrus Logic

  SA03 Datasheet HTML 1Page - Cirrus Logic SA03 Datasheet HTML 2Page - Cirrus Logic SA03 Datasheet HTML 3Page - Cirrus Logic SA03 Datasheet HTML 4Page - Cirrus Logic  
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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
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FEATURES
• WIDE SUPPLY RANGE—16-100V
• 30A CONTINUOUS TO 60°C case
• 3 PROTECTION CIRCUITS
• ANALOG OR DIGITAL INPUTS
• SYNCHRONIZED OR EXTERNAL OSCILLATOR
• FLEXIBLE FREQUENCY CONTROL
APPLICATIONS
• MOTORS TO 4HP
• REACTIVE LOADS
• LOW FREQUENCY SONAR
• LARGE PIEZO ELEMENTS
• OFF-LINE DRIVERS
• C-D WELD CONTROLLER
DESCRIPTION
The SA03 is a pulse width amplifier that can supply 3000W
to the load. An internal 45kHz oscillator requires no external
components. The clock input stage divides the oscillator
frequency by two, which provides the basic switching of
22.5 kHz. External oscillators may also be used to lower the
switching frequency or to synchronize multiple amplifiers.
Current sensing is provided for each half of the bridge giv-
ing amplitude and direction data. A shutdown input turns off
all four drivers of the H bridge output. A high side current
limit and the programmable low side current limit protect the
amplifier from shorts to supply or ground in addition to load
shorts. The H bridge output MOSFETs are protected from
thermal overloads by directly sensing the temperature of the
die. The 12-pin hermetic MO-127 power package occupies
only 3 square inches of board space.
BLOCK DIAGRAM AND TYPICAL APPLICATION
EXTERNAL CONNECTIONS
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12-PIN POWER DIP
PACKAGE STYLE CR


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