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SA12 bảng dữ liệu(PDF) 1 Page - Cirrus Logic

tên linh kiện SA12
Giải thích chi tiết về linh kiện  PULSE WIDTH MODULATION AMPLIFIERS
PDF  4 Pages
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nhà sản xuất  APEX [Cirrus Logic]
Trang chủ  http://www.cirrus.com
Logo APEX - Cirrus Logic

SA12 bảng dữ liệu(HTML) 1 Page - Cirrus Logic

  SA12 Datasheet HTML 1Page - Cirrus Logic SA12 Datasheet HTML 2Page - Cirrus Logic SA12 Datasheet HTML 3Page - Cirrus Logic SA12 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
1
FEATURE
• HIGH FREQUENCY SWITCHING — 200 kHz
• WIDE SUPPLY RANGE—16-200V
• 15A CONTINUOUS TO 65°C CASE
• 3 PROTECTION CIRCUITS
• ANALOG OR DIGITAL INPUTS
• SYNCHRONIZED OR EXTERNAL OSCILLATOR
• FLEXIBLE FREQUENCY CONTROL
APPLICATIONS
• REACTIVE LOADS
• LOW FREQUENCY SONAR
• LARGE PIEZO ELEMENTS
• OFF-LINE DRIVERS
• C-D WELD CONTROLLER
DESCRIPTION
The SA12 is a pulse width modulation amplifier that can
supply 3000W to the load. An internal 400kHz oscillator re-
quires no external components. The clock input stage divides
the oscillator frequency by two, which provides the 200 kHz
switching frequency. External oscillators may also be used to
lower the switching frequency or to synchronize multiple ampli-
fiers. Current sensing is provided for each half of the H-bridge
giving 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
TORQUE MOTOR DRIVER
EXTERNAL CONNECTIONS
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12-PIN POWER DIP
PACKAGE STYLE CR


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