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    首頁產(chǎn)品索引NCP1612

    NCP1612

    購買收藏
    ?Power Factor Controller, Enhanced, High Efficiency

    制造商：ON

    中文數(shù)據(jù)手冊

    產(chǎn)品信息

    The NCP1612 is active power factor corrected (PFC) controller specifically designed for use as a boost pre-converter in ac-dc adapters, flat TVs, lighting ballasts and other medium powered offline applications. The controller is based on an innovative Current Controlled Frequency Foldback(CCFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1612 linearly reduces the frequency down to about 20 kHz when the current is at a null. CCFF maximizes the efficiency at both nominal and light load. In particular, the standby losses are reduced to a minimum. The controller features a robust suite of protection features to properly handle an array of power supply operating and fault conditions.This device is particularly suited a PFC stage for LLC controllers due to its dedicated PFC_Okay Output.
    • Critical conduction mode with current controlled frequency foldback
    • Dynamic Response Enhancer
    • Soft Overvoltage Protection
    • -500 mA/+800 mA Drive Capability
    • Valley turn on
    • Wide Vcc Range of 9.5-35 Vdc
    • Two Vcc startup versions: 10.5 V (A) and 17 V (B)
    • AC Line Brownout Detection
    • Cycle-by-cycle switch current monitoring
    • Saturated inductor and shorted boost or bypass diode detection
    • PFC Okay Output
    • Latch Off Input
    • Independent bulk overvoltage and undervoltage monitoring
    • Open Ground Pin Fault Monitoring
    • Near Unity Power Factor
    • Thermal Shutdown

    電路圖、引腳圖和封裝圖

    在線購買

    型號制造商描述購買
    NCP1612A1DR2GONIC PFC CTRL CRM 10SOIC 立即購買
    NCP1612BDR2GONNCP1612 是一款有源功率因數(shù)校正 (PFC) 控制器，專門用作 AC-DC 適配器、平板電視、照明鎮(zhèn)流器和其他中等功率離線轉(zhuǎn)換器中的升壓預轉(zhuǎn)換器。該控制器基于創(chuàng)新的電流控制頻率折回 (CCFF) 方法。在此模式下，當電感器電流超過編程值時，該電路通常以臨界導通模式 (CrM) 運行。當電流低于此預設(shè)水平時，NCP1612 會將頻率線性下降，當電流為空值時大約降至 20 kHz。CCFF 可在標稱負載和輕型負載下最大程度提高能效。尤其待機損耗降至最低。該控制器具有豐富的保護功能組合，可正確處理運行和故障情況下的電源陣列。 此器件具有專門的 PFC_Okay 輸出，尤其適用于 LLC 控制器的 PFC 級。 立即購買
    NCP1612A2DR2GONPFC IC Current Controlled Frequency Foldback (CCFF) 10-SOIC 立即購買
    NCP1612ADR2GONPFC IC Current Controlled Frequency Foldback (CCFF) 10-SOIC 立即購買
    NCP1612A3DR2GONNCP1612 是一款有源功率因數(shù)校正 (PFC) 控制器，專門用作 AC-DC 適配器、平板電視、照明鎮(zhèn)流器和其他中等功率離線轉(zhuǎn)換器中的升壓預轉(zhuǎn)換器。該控制器基于創(chuàng)新的電流控制頻率折回 (CCFF) 方法。在此模式下，當電感器電流超過編程值時，該電路通常以臨界導通模式 (CrM) 運行。當電流低于此預設(shè)水平時，NCP1612 會將頻率線性下降，當電流為空值時大約降至 20 kHz。CCFF 可在標稱負載和輕型負載下最大程度提高能效。尤其待機損耗降至最低。該控制器具有豐富的保護功能組合，可正確處理運行和故障情況下的電源陣列。 此器件具有專門的 PFC_Okay 輸出，尤其適用于 LLC 控制器的 PFC 級。 立即購買

    技術(shù)資料

    標題類型大?。↘B）下載
    SOIC-10 NBPDF55 點擊下載
    Enhanced, High-Efficiency Power Factor ControllerPDF651 點擊下載
    NCP1612 Design WorksheetXLS2048 點擊下載
    5 Key Steps to Design a Compact, High-Efficiency PFC State Using the NCP1612PDF250 點擊下載
    NCP1611/NCP1612 Tips and TricksPDF557 點擊下載
    Safety Tests on a NCP1612-Based PFC StagePDF709 點擊下載
    NCP1612_PD.GIFUNKNOW20 點擊下載
    NCP1612_AD.GIFUNKNOW25 點擊下載

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