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    參數(shù)資料
    型號(hào)： NCP1011ST65T3
    廠商： ON SEMICONDUCTOR
    元件分類： 穩(wěn)壓器
    英文描述： Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS
    中文描述： 0.55 A SWITCHING REGULATOR, 71 kHz SWITCHING FREQ-MAX, PSSO4
    封裝： PLASTIC, SOT-223, 4 PIN
    文件頁數(shù)： 3/24頁
    文件大小： 324K
    代理商： NCP1011ST65T3
    NCP1010, NCP1011, NCP1012, NCP1013, NCP1014
    http://onsemi.com
    3
    PIN FUNCTION DESCRIPTION
    Pin No.
    (SOT223)
    Pin No.
    (PDIP7,
    PDIP7/Gull Wing)
    Pin Name
    Function
    Description
    1
    1
    V
    CC
    Powers the Internal Circuitry
    This pin is connected to an external capacitor of typi-
    cally 10 F. The natural ripple superimposed on the
    V
    CC
    participates to the frequency jittering. For im-
    proved standby performance, an auxiliary V
    CC
    can be
    connected to Pin 1. The V
    CC
    also includes an active
    shunt which serves as an opto failsafe protection.
    2
    NC
    3
    NC
    2
    4
    FB
    Feedback Signal Input
    By connecting an optocoupler to this pin, the peak
    current setpoint is adjusted accordingly to the output
    power demand.
    3
    5
    Drain
    Drain Connection
    The internal drain MOSFET connection.
    7
    NC
    This unconnected pin ensures adequate creepage
    distance.
    4
    8
    GND
    The IC Ground
    65, 100 or
    130 kHz
    Clock
    Overload
    UVLO
    Management
    NC
    NC
    V
    CC
    FB
    Drain
    NC
    GND
    Figure 2. Simplified Internal Circuit Architecture
    2
    1
    3
    4
    IV
    CC
    I
    Vclamp*
    4 V
    18 k
    Error flag armed
    EMI Jittering
    V
    CC
    Startup Source
    Drain
    FlipFlop
    DCmax = 65%
    Reset
    Reset
    High when V
    CC
    3 V
    Driver
    S
    Q
    R
    +
    Iref = 7.4 mA
    IV
    CC
    Set
    Q
    V
    CC
    8
    Rsense
    250 ns
    L.E.B.
    7
    5
    +
    +
    SoftStart
    Startup Sequence
    Overload
    +
    0.5 V
    Drain
    *Vclamp = VCC
    OFF
    + 200 mV (8.7 V Typical)
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    NCP1011ST65T3G 功能描述:電流型 PWM 控制器 Low Standby Power Monolithic Switcher RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
    NCP1012 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS
    NCP1012/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS
    NCP1012AP065 功能描述:電流型 PWM 控制器 Low Standby Power RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
    NCP1012AP065G 功能描述:電流型 PWM 控制器 Low Standby Power Monolithic Switcher RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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