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    首頁產(chǎn)品索引HV850

    HV850

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    Inductorless Single Lamp EL Driver

     

    產(chǎn)品信息

    HV850 is a high voltage electroluminescent (EL) Lamp Driver IC. It is designed to drive EL lamps of up to 1.5in2, with capacitive values up to 5.0nF. The HV850 converts a low voltage DC input to a high voltage AC output across an EL lamp. It uses a charge pump scheme to boost the input voltage, eliminating the need for external inductors, diodes, and high voltage capacitors, components commonly found in conventional topologies.The charge pump circuit discharges its energy into an EL lamp through a high voltage H-bridge. Once the voltage reaches its regulated limit, it is turned off to conserve power. The EL lamp is then discharged to ground and the H-bridge changes state to allow the charge pump to charge the EL lamp in the opposite direction.The EL lamp frequency can be set either by an external resistor, REL, or by applying an external clock, where the clock frequency is divided by 128 to set the EL lamp frequency.

      No external components required when using an external EL clock frequency

      EL frequency can be set by an external resistor

      Low noise

      DC to AC converter

      Drives up to 5.0nF load (approx. 1.5in2 lamp)

      Output voltage regulation

      Enable function

      EL Lamp dimming

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    HV850MG-GATSHEATSINK50X50X10MMXCUTT766 立即購買

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