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9110 / SI9110DJ / SI9110 / vishay siliconix ic
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High-Voltage Switchmode Controllers
The following spec sheet is provided by the manufacturer. It may cover several different components and/or versions. I am only offering the part in the heading and picture.
* High-Speed, Source-Sink Output Drive
* High Efficiency Operation (> 80%)
* Internal Oscillator (1 MHz)
* Reference Selection Si9110 ? _1%
The Si9110/9111 are BiC/DMOS integrated circuits designed for use as high-performance switchmode controllers. A high-voltage DMOS input allows the controller to work over a wide range of input voltages (10- to 120-VDC). Current-mode PWM control circuitry is implemented in CMOS to reduce internal power consumption to less than 10 mW.
A push-pull output driver provides high-speed switching for MOSPOWER devices large enough to supply 50 W of output power. When combined with an output MOSFET and transformer, the Si9110/9111 can be used to implement single-ended power converter topologies (i.e., flyback, forward, and cuk).
