SA12 Cirrus Logic Inc, SA12 Datasheet
SA12
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SA12 Summary of contents
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... 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 ...
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... MTTF. For guidance, refer to the heatsink data sheet. 4. Guaranteed but not tested. The SA12 is constructed from MOSFET transistors. ESD handling procedures must be observed. CAUTION The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or subject to temperatures in excess of 850° ...
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... ANALOG INPUT, (V) Vs QUIESCENT VS VOLTAGE 140 120 100 100 125 150 175 200 Vs, (V) SA12 CLOCK FREQUENCY OVER TEMP 102.0 101.5 101.0 100.5 100.0 99.5 99.0 98.5 98.0 –50 – 100 125 CASE TEMPERATURE, (°C) TOTAL VOLTAGE DROP 12 60 ° 85°C 8 100° ...
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... C FILTER IN4148 to the SA12 demands a 100% duty cycle upon start-up the output will not follow and will tri-state (open) condition. The ramp signal must cross the input signal at some point to correctly determine the output state. After the ramp crosses the input signal one time the output state will be correct thereafter ...
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... Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. SA12U SA12 5 ...