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EPF10K70RC240

EPF10K70RC240资料
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File Size : 116 KB Manufacturer:ALTERA Description:Introduction The EPF10K70RC240 is a fixed frequency, voltage mode syn- chronous controller and consists of a precision refer- ence voltage, an error amplifier, an internal oscillator, a PWM comparator, 1A peak gate driver, soft-start and shutdown circuits (see Block Diagram). The output volt- age of the synchronous converter is set and controlled by the output of the error amplifier; this is the amplified error signal from the sensed output voltage and the refer- ence voltage. This voltage is compared to a fixed fre- quency linear sawtooth ramp and generates fixed fre- quency pulses of variable duty-cycle, which drives the two N-channel external MOSFETs.The timing of the IC is provided through an internal oscillator circuit which uses on-chip capacitor. The oscillation frequency is pro- grammable between 200KHz to 400KHz by using an external resistor. Figure 4A shows switching frequency vs. external resistor.

	1PCS	100PCS	1K	10K
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型号：EPF10K70RC240 厂家：ALTERA 封装：260 批号：07+ 数量：QFP240 说明：


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