HV9123 controller equivalent, current-mode pwm controller.
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* 10 to 450V input voltage range
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* <1.3mA supply current
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* >1.0MHz clock
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* >20:1 dynamic range @ 500kHz
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* 99% Maximum duty c.
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* Off-line high frequency power supplies
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* Universal input power supplies
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* High density powe.
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