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    參數(shù)資料
    型號(hào)： HCPL7820
    元件分類： 運(yùn)動(dòng)控制電子
    英文描述： High CMR Analog Isolation Amplifiers
    中文描述： 高CMR模擬隔離放大器
    文件頁(yè)數(shù)： 1/15頁(yè)
    文件大?。?/td> 228K
    代理商： HCPL7820
    1-233
    5965-3591E
    H
    High CMR Analog Isolation
    Amplifiers
    Technical Data
    Features
    Fast Propagation Delays for
    Over-Current and Fault
    Detection Sensing
    High Common Mode
    Rejection (CMR): 30 kV/
    μ
    s at
    V
    CM
    = 1000 V*
    3% Gain Tolerance:
    HCPL-7820
    5% Gain Tolerance:
    HCPL-7825
    0.05% Nonlinearity
    Low Offset Voltage and Off-
    set Drift vs. Temperature
    200 kHz Bandwidth
    Performance Specified for
    Common Motor Control
    Applications over -40
    °
    C to
    100
    °
    C Temperature Range
    Worldwide Safety and
    Regulatory Approval: UL
    1577 (3750 V rms/1 Min),
    VDE 0884 and CSA
    Compact Auto-Insertable
    Standard 8-Pin DIP Package
    Advanced Sigma-Delta (
    Σ
    )
    A/D Converter Technology
    1
    μ
    m CMOS IC Technology
    Applications
    Motor Phase and Rail
    Current Sensing
    General Purpose Current
    Sensing and Monitoring
    High-Voltage Monitoring
    Switched Mode Power
    Supply Signal Isolation
    General Purpose Analog
    Signal Isolation
    Transducer Isolation
    Description
    The HCPL-7820/7825 high CMR
    isolation amplifier consists of a
    sigma-delta analog-to-digital
    converter optically coupled to an
    integrated output digital-to-analog
    converter. When used with a
    shunt resistor in the current path,
    the HCPL-7820/7825 provides a
    cost-effective, auto-insertion
    compatible current sense solution.
    Fast propagation delays allow this
    part to be used in either motor
    drive or inverter applications for
    either phase current monitoring
    or rail current fault detection
    applications. High isolation mode
    *The terms common-mode rejection (CMR) and isolation-mode rejection (IMR) are used interchangeably throughout this data sheet.
    A 0.1
    μ
    F bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8.
    rejection makes this product
    suitable for noisy electrical
    environments, such as those
    generated by the high switching
    rates of power IGBTs. Low offset
    voltage together with low offset
    change vs. temperature permits
    accurate use of auto-calibration
    techniques. Tight gain tolerance
    with good nonlinearity further
    provide the characteristics needed
    to insure highly accurate motor
    speed control. A high operating
    temperature range with specified
    performance parameters allow
    HCPL-7820
    HCPL-7825
    CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
    prevent damage and/or degradation which may be induced by ESD.
    Functional Diagram
    1
    I
    DD1
    2
    3
    4
    V
    DD1
    V
    IN+
    V
    IN–
    GND1
    8
    I
    DD2
    7
    6
    5
    V
    DD2
    V
    OUT+
    V
    OUT–
    GND2
    +
    –
    +
    –
    CMR SHIELD
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    HCPL-7840 功能描述:隔離放大器 4.5 - 5.5 SV 8 dB RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
    HCPL-7840#060 功能描述:隔離放大器 4.5 - 5.5 SV 8 dB RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
    HCPL-7840#300 功能描述:隔離放大器 4.5 - 5.5 SV 8 dB RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
    HCPL-7840#360 功能描述:隔離放大器 4.5 - 5.5 SV 8 dB RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
    HCPL-7840#500 功能描述:隔離放大器 4.5 - 5.5 SV 8 dB RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
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