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    首頁產(chǎn)品索引HV9112

    HV9112

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    SWITCHMODE CONTROLLER, 120V, 2% REF

     

    產(chǎn)品信息

    The HV9112 is a BiCMOS/DMOS single-output, pulse width?modulator IC intended for use in high-speed, high-efficiency switch?mode power supplies. It provides all the functions necessary to?implement a single-switch current mode PWM, in any topology, with a?minimum of external parts. ?HV9112 requires less than one tenth of the operating power of?conventional bipolar PWM ICs, and can operate at more than twice?their switching frequency. The dynamic range for regulation is also?increased, to approximately 8 times that of similar bipolar parts. It starts?directly from any DC input voltage between 9.0 and 80VDC, requiring?no external power resistor. The output stage is push-pull CMOS and?thus requires no clamping diodes for protection, even when significant?lead length exists between the output and the external MOSFET. The?clock frequency is set with a single external resistor.

      9.0 to 80V input voltage range

      Current-mode control

      High efficiency

      Up to 1.0MHz internal oscillator

      Internal start-up circuit

      Low internal noise

      50% maximum duty cycle

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    型號制造商描述購買
    HV9112NG-G-- 立即購買

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