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    參數(shù)資料
    型號(hào)： MC33167TV
    廠商： ON SEMICONDUCTOR
    元件分類： 穩(wěn)壓器
    英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
    中文描述： 8 A SWITCHING REGULATOR, 81 kHz SWITCHING FREQ-MAX, PZFM5
    封裝： TO-220, 5 PIN
    文件頁(yè)數(shù)： 9/16頁(yè)
    文件大小： 408K
    代理商： MC33167TV
    MC34167 MC33167
    9
    MOTOROLA ANALOG IC DEVICE DATA
    Figure 20. Step–Up/Down Converter
    4
    2
    1
    5
    3
    +
    CF
    RF
    R1
    1.5 k
    CO
    2200
    VO
    28 V/0.9 A
    R2
    EA
    Reference
    Thermal
    Oscillator
    S
    R
    Q
    PWM
    UVLO
    ILIMIT
    Vin
    12 V
    Cin
    330
    +
    6.8 k
    4.7 k
    0.47
    Q1
    D1
    1N5825
    +
    *Gate resistor RG, zener diode D3, and diode D4 are required only when Vin is greater than 20 V.
    L
    190
    μ
    H
    *RG
    620
    D3
    1N967A
    D2
    1N5822
    Q2
    MTP3055EL
    D4
    1N4148
    +
    +
    Test
    Conditions
    Results
    Line Regulation
    Vin = 10 V to 24 V, IO = 0.9 A
    Vin = 12 V, IO = 0.1 A to 0.9 A
    Vin = 12 V, IO = 0.9 A
    Vin = 12 V, RL = 0.1
    Vin = 12 V, IO = 0.9 A
    Vin = 24 V, IO = 0.9 A
    10 mV =
    ±
    0.017%
    30 mV =
    ±
    0.053%
    140 mVpp
    6.0 A
    Load Regulation
    Output Ripple
    Short Circuit Current
    Efficiency
    80.1%
    87.8%
    L = Coilcraft M1496–A or General Magnetics Technology GMT–0223, 42 turns of #16 AWG on
    Magnetics Inc. 58350–A2 core.
    Heatsink = AAVID Engineering Inc.
    MC34167: 5903B, or 5930B
    MTP3055EL: 5925B
    Figure 20 shows that the MC34167 can be configured as a step–up/down converter with the addition of an external power MOSFET. Energy is stored in the
    inductor during the ON time of transistors Q1 and Q2. During the OFF time, the energy is transferred, with respect to ground, to the output filter capacitor and load.
    This circuit configuration has two significant advantages over the basic step–up converter circuit. The first advantage is that output short circuit protection is
    provided by the MC34167, since Q1 is directly in series with Vin and the load. Second, the output voltage can be programmed to be less than Vin. Notice that during
    the OFF time, the inductor forward biases diodes D1 and D2, transferring its energy with respect to ground rather than with respect to Vin. When operating with Vin
    greater than 20 V, a gate protection network is required for the MOSFET. The network consists of components RG, D3, and D4.
    Figure 21. Step–Up/Down Converter Printed Circuit Board and Component Layout
    3.45
    ″
    RG
    (Top View)
    Vin
    VO
    CO
    Ci
    L
    CF
    R
    R1
    D
    +
    –
    +
    –
    +
    +
    D3
    D2
    Q
    (Bottom View)
    ″
    1
    M
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    MC33167TVG 功能描述:直流/直流開關(guān)調(diào)節(jié)器 40V 5A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
    MC33168 制造商:SPC Multicomp 功能描述:FUSE RESETTABLE RADIAL 9A 制造商:SPC Multicomp 功能描述:FUSE, PTC RESET, RADIAL, 30V, 9A 制造商:SPC Multicomp 功能描述:RESETTABLE FUSE RADIAL 9A 制造商:SPC Multicomp 功能描述:FUSE, PTC RESET, 30V, 9A, RADIAL; Holding Current:9A; Tripping Current:18A; Initial Resistance Max:0.02ohm; Operating Voltage:30V; Series:FRU; PTC Fuse Case:Radial Leaded; External Depth:3mm; Initial Resistance Min:0.005ohm ;RoHS Compliant: Yes
    MC33168 制造商:SPC Multicomp 功能描述:PTC Resettable Fuse
    MC33169 制造商:SPC Multicomp 功能描述:FUSE RESETTABLE RADIAL 0.1A 制造商:SPC Multicomp 功能描述:FUSE, PTC RESET, RADIAL, 60V, 100MA 制造商:SPC Multicomp 功能描述:RESETTABLE FUSE RADIAL 0.1A 制造商:SPC Multicomp 功能描述:FUSE, PTC RESET, 60V, 100mA, RADIAL; Holding Current:100mA; Tripping Current:200mA; Initial Resistance Max:7.5ohm; Operating Voltage:60V; Series:FRX; PTC Fuse Case:Radial Leaded; External Depth:3.1mm; Initial Resistance Min:2.5ohm ;RoHS Compliant: Yes
    MC33169 制造商:SPC Multicomp 功能描述:PTC Resettable Fuse
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