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    • BA3898FVE2图

    • 深圳市一线半导体有限公司

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    • BA3898FVE2
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    产品型号BA3899的Datasheet PDF文件预览

    Standard ICs  
    EL driver for portable sets  
    BA3899F  
    The BA3899F is an IC developed for EL drive applications. It uses a more compact interface than transformer sys-  
    tems, and is ideal for use in thin sets.  
    Applications  
    •
    Pagers, electronic notebooks and other portable devices  
    Features  
    •
    1) Drive oscillation frequency can be set using external capacitance.  
    2) Equipped with standby control pin.  
    Absolute maximum ratings (Ta = 25°C)  
    •
    Parameter  
    Power supply voltage  
    Power dissipation  
    Symbol  
    VCC  
    Limits  
    8.0  
    Unit  
    V
    Pd  
    450  
    mW  
    °C  
    °C  
    V
    Operating temperature  
    Storage temperature  
    Maximum applied voltage  
    Topr  
    Tstg  
    VST  
    – 10 ~ + 60  
    – 55 ~ + 125  
    8.0  
    Reduced by 4.5mW for each increase in Ta of 1°C over 25°C.  
    Recommended operating conditions (Ta = 25°C)  
    •
    Parameter  
    Symbol  
    VCC  
    Min.  
    1.0  
    Typ.  
    5.0  
    Max.  
    7.0  
    Unit  
    Power supply voltage  
    V
    Block diagram  
    •
    SW1  
    8
    SW2  
    7
    VCC  
    STBY  
    5
    6
    STBY  
    RSW2  
    OSC1  
    OSC2  
    1
    2
    3
    4
    GND  
    N.C.  
    C1  
    C2  
    1
    Standard ICs  
    BA3899F  
    Pin descriptions  
    •
    Pin No.  
    Pin name  
    GND  
    I / O  
    I
    Pin voltage  
    Internal equivalent circuit  
    Function  
    1
    2
    —
    —
    —
    —
    GND pin  
    —
    N.C.  
    —
    VCC  
    1k  
    OSC1 oscillator circuit;  
    external capacitor pin  
    C1  
    3
    C1  
    I / O  
    —
    GND  
    VCC  
    200Ω  
    OSC2 oscillator circuit;  
    external capacitor pin  
    C2  
    4
    C2  
    I / O  
    —
    GND  
    Standby control pin  
    1k  
    50k  
    (HIGH state: standby cancelled)  
    STBY  
    5
    6
    STBY  
    I
    I
    0
    ᭺When applying resistance, etc.  
    to the STBY pin, be careful not  
    to exceed the threshold values.  
    200k  
    GND  
    —
    VCC input pin  
    VCC  
    —
    VCC  
    50k  
    SW2 switching output pin  
    7
    SW2  
    O
    —
    X1  
    X20  
    SW2  
    500Ω  
    GND  
    VCC  
    X1  
    X5  
    SW1  
    8
    SW1  
    O
    —
    SW1 switching output pin  
    GND  
    2
    Standard ICs  
    BA3899F  
    Electrical characteristics (unless otherwise noted, Ta = 25°C, VCC = 5.0V, C1 = 0.033µF, C2 = 1500pF)  
    •
    Parameter  
    Supply current  
    Symbol  
    Min.  
    3.0  
    75  
    Typ.  
    4.6  
    95  
    Max.  
    6.2  
    120  
    29  
    Unit  
    mA  
    Hz  
    kHz  
    µA  
    µA  
    mA  
    Ω
    Conditions  
    ICC  
    When used as stand-alone unit  
    C1 pin oscillation frequency  
    C2 pin oscillation frequency  
    fSW1  
    —
    fSW2  
    17  
    23  
    —
    Source current  
    SW1  
    ISW1SO  
    100  
    – 40  
    3.2  
    400  
    1.0  
    —
    140  
    —
    180  
    —
    VC1 = 1.0V, VC2 = 0.05V, VSW1 = 0V  
    Sink current  
    ISW1SI  
    VC1 = 0.05V, VC2 = 0.05V, VSW1 = 1.0V  
    Source current  
    SW2  
    ISW2SO  
    RSW2  
    4.4  
    500  
    —
    6.1  
    600  
    —
    VC1 = 0.05V, VC2 = 0.05V, VSW2 = 0V  
    Pull-down resistance  
    Vst = 0.35V, VSW2 = 0.3V  
    Operating  
    VSTON  
    V
    —
    —
    —
    Standby pin control  
    voltage condition  
    Non-operating VSTOFF  
    —
    0.3  
    2.0  
    V
    Quiescent current in standby state  
    IQ (ST)  
    —
    0
    µA  
    Measurement circuit  
    •
    fSW1  
    fSW2  
    Counter  
    Counter  
    VSW1  
    VSW2  
    VCC  
    VSTBY  
    A
    A
    A
    ISW1  
    ISW2  
    IQ  
    8
    7
    6
    5
    STBY  
    RSW2  
    OSC1  
    3
    OSC2  
    4
    1
    2
    0.033µF  
    ± 1%  
    1500pF  
    ± 1%  
    VC1  
    VC2  
    Fig.1  
    3
    Standard ICs  
    BA3899F  
    Application example  
    •
    D1  
    Q2  
    ROHM: 1SS376  
    L1  
    EL 16000pF  
    R1  
    2k  
    1.5mH (TOKO: D73LC)  
    Q1  
    8
    +
    2.2µF  
    100k  
    SANYO: 2SC3645T  
    SW2  
    VCC = 5V  
    ROHM: 2SC4061KP  
    SW1  
    7
    6
    5
    VCC  
    STBY  
    STBY  
    RSW2  
    RX  
    300k  
    OSC1  
    OSC2  
    GND  
    N.C.  
    C1  
    C1  
    C2  
    1
    2
    3
    4
    C2  
    8200pF ± 10%  
    1500pF ± 10%  
    Fig. 2  
    Because of the characteristics of the EL element, continuous application of particularly high DC power supply voltage can shorten the lifetime of the  
    element. To avoid this, we recommend inserting a switch in the power supply line.  
    4
    Standard ICs  
    BA3899F  
    D1  
    Q2  
    ROHM: 1SS376  
    L1  
    EL 5000pF  
    R1  
    4.7k  
    (
    )
    (
    )
    1mH TOKO: 43FS or TDK: NL453232  
    Q1  
    8
    +
    2.2µF  
    SANYO: 2SC3143K5  
    SW2  
    VCC = 1.5V  
    ROHM: 2SC4061KP  
    SW1  
    7
    6
    5
    VCC  
    STBY  
    VSTBY = 1.5V  
    Hi: act  
    STBY  
    RSW2  
    OSC1  
    OSC2  
    GND  
    N.C.  
    C1  
    C2  
    1
    2
    3
    4
    C1  
    C2  
    0.033µF ± 10%  
    1500pF ± 10%  
    Fig. 3  
    5
    Standard ICs  
    BA3899F  
    Operation notes  
    •
    (1) EL drive output  
    (4) Q1, Q2, and D1  
    As shown in Figure 4, the EL drive output consists of  
    charging (rise in voltage caused by switching) and dis-  
    charging waveforms. The switching frequency is deter-  
    mined by fSW2 and the charging and discharging timing  
    by fSW1.  
    The VO (Max.) shown in Figure 4 is applied to the output  
    VO, so if using any transistor other than that recom-  
    mended, caution is required concerning the pressure  
    withstand value. Also, Q2 must have characteristics  
    which allow it to keep pace with the switching speed of  
    fSW2.  
    tSW1 (fSW1)  
    VO (Max.)  
    t2  
    t1  
    Discharge  
    Charge  
    Fig.4  
    (2) Setting fSW1  
    (5) RX (resistor for adjusting light volume)  
    The oscillation frequency is determined by charging  
    and discharging of the external capacitance of the C1  
    pin. The value for C1 should be set based on the fol-  
    lowing equation.  
    With a configuration like that shown in Figure 5, the  
    volume of light can be adjusted. However, RX should  
    be set so that IX satisfies the following condition.  
    Vx – 0.2V  
    Ix ( =  
    ) < 40µA  
    Rx  
    1
    1
    I1  
    1
    C1 =  
    =
    ×
    fSW1  
    1
    I2  
    VC1 × (  
    +
    )
    If IX > 40µA, LSI dispersion, temperature fluctuation,  
    and other elements can cause oscillation of the C2 pin  
    to stop. Be sure the above condition is satisfied.  
    1
    (3.14E – 6) ×  
    (VCC = 5V)  
    fSW1  
    C2  
    4
    The recommended setting range for fSW1 is 40Hz to  
    800Hz. However, the VO (Max.) shown in Figure 4 is  
    determined by fSW1, so caution is required concerning  
    the pressure withstand values of Q1, Q2, and D1.  
    Rx  
    Vx  
    Ix  
    (3) fSW2  
    1500pF  
    fSW2 is the switching pressure rise frequency, and is  
    determined by the external capacitance of the C2 pin.  
    This value (1500pF) is determined by the inductance  
    value and the Q2 transistor capability. When changing  
    this value, the drive capability of Q2 must be taken into  
    consideration in order to avoid the possibility of mal-  
    function.  
    Fig.5  
    6
    Standard ICs  
    BA3899F  
    Electrical characteristic curves  
    •
    10  
    9
    C1 = 0.033µF  
    C2 = 1500pF  
    VST = 5V  
    fSW1  
    75°C  
    8
    Rx = ∞  
    – 25°C  
    10k  
    1k  
    7
    25°C  
    75°C  
    C1 = 0.033µF  
    C2 = 1500pF  
    Rx = ∞  
    6
    5
    4
    – 25°C  
    fSW2  
    75°C  
    3
    100  
    25°C  
    2
    – 25°C  
    1
    0
    25°C  
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    0
    1
    2
    3
    4
    5
    6
    7
    8
    INPUT VOLTAGE: VCC (V)  
    INPUT VOLTAGE: VCC (V)  
    Fig. 6 Supply current (when used  
    as stand-alone unit) vs.  
    Fig. 7 Oscillation frequency of C1  
    and C2 pins vs. power supply  
    voltage  
    power supply voltage  
    250  
    3.0  
    2.0  
    1.0  
    VC1 = 0V  
    VSW1 = 1.0V  
    VST = 5V  
    75°C  
    200  
    150  
    100  
    25°C  
    75°C  
    – 25°C  
    25°C  
    – 25°C  
    50  
    0
    VC1 = 1.0V  
    VSW1 = 0V  
    10  
    0
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    INPUT VOLTAGE: VCC (V)  
    INPUT VOLTAGE: VCC (V)  
    Fig. 8 SW1 sink current vs.  
    power supply voltage  
    Fig. 9 SW1 source current vs.  
    power supply voltage  
    1000  
    900  
    800  
    700  
    600  
    500  
    400  
    300  
    200  
    10  
    9
    VCC = 5V  
    VSW2 = 0.2V  
    VST = 0V  
    VC1 = 1.0V  
    VSW1 = 0V  
    VST = 5V  
    8
    7
    75°C  
    75°C  
    6
    5
    4
    – 25°C  
    – 25°C  
    25°C  
    3
    25°C  
    2
    100  
    0
    1
    0
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    INPUT VOLTAGE: VCC (V)  
    INPUT VOLTAGE: VCC (V)  
    Fig. 11 SW2 pull-down resistance vs.  
    power supply voltage  
    Fig. 10 SW2 source current vs.  
    power supply voltage  
    7
    Standard ICs  
    BA3899F  
    External dimensions (Units: mm)  
    •
    5.0 ± 0.2  
    8
    5
    1
    4
    1.27  
    0.4 ± 0.1  
    0.3Min.  
    0.15  
    SOP8  
    8
    配单直通车
    BA3899F产品参数
    型号:BA3899F
    是否无铅： 不含铅
    是否Rohs认证： 符合
    生命周期：Active
    零件包装代码：SOIC
    包装说明：LSOP, SOP8,.25
    针数：8
    Reach Compliance Code：compliant
    ECCN代码：EAR99
    HTS代码：8542.39.00.01
    风险等级：5.7
    显示模式：DOT MATRIX
    输入特性：STANDARD
    接口集成电路类型：EL DISPLAY DRIVER
    JESD-30 代码：R-PDSO-G8
    JESD-609代码：e3/e2
    长度：5 mm
    复用显示功能：NO
    功能数量：1
    区段数：1
    端子数量：8
    最高工作温度：60 °C
    最低工作温度：-10 °C
    封装主体材料：PLASTIC/EPOXY
    封装代码：LSOP
    封装等效代码：SOP8,.25
    封装形状：RECTANGULAR
    封装形式：SMALL OUTLINE, LOW PROFILE
    峰值回流温度（摄氏度）：260
    电源：5 V
    认证状态：Not Qualified
    座面最大高度：1.6 mm
    子类别：Display Drivers
    最大压摆率：6.2 mA
    最大供电电压：7 V
    最小供电电压：1 V
    标称供电电压：5 V
    表面贴装：YES
    技术：BIPOLAR
    温度等级：COMMERCIAL
    端子面层：TIN/TIN COPPER
    端子形式：GULL WING
    端子节距：1.27 mm
    端子位置：DUAL
    处于峰值回流温度下的最长时间：10
    宽度：4.4 mm
    Base Number Matches：1
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