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    产品型号BCR320U的Datasheet PDF文件预览

    BCR320U / BCR321U  
    LED Driver  
    Features  
    • Continuous output current up to 250mA  
    with external resistor  
    4
    3
    5
    2
    6
    1
    • Supply voltage up to 24V  
    • Digital PWM input up to 10kHz frequency (BCR321U)  
    • Up to 1W power dissipation in a small SC74 package  
    • Negative thermal coefficient reduces output current  
    at higher temperatures  
    • Easy paralleling of drivers to increase current  
    • PB-free (RoHS compliant) package  
    • Automotive qualified according to AEC Q101  
    Applications  
    • Architectural LED lighting  
    • Channel letters for advertising, LED strips for decorative lighting  
    • Retail lighting in fridge, freezer case and vending machines  
    • Emergency lighting (e.g. steps lighting, exit way signs etc.)  
    General Description  
    The BCR320U/BCR321U provide a low-cost solution for driving 0.5W LEDs with a typical  
    LED current ILED of 150mA to 200mA. Internal breakdown voltage is >16V, this is the  
    maximum voltage that the LED driver IC can sustain when the ouput is directly connected  
    to supply voltage. The BCR320U/BCR321U can be operated at supply voltages of 16V or  
    higher, by regarding the voltage drop of the LED load, which reduces the supply voltage  
    to the maximum output voltage of the driver.  
    The enable pin (BCR320) can withstand a maximum voltage of 25 V, which can also be  
    increased by stacking a series in front of the LED drivers, resulting in a certain voltage  
    drop of the LEDs, reducing the voltage at the enable pin below 25V.  
    A digital input pin (BCR321U) allows dimming via a Microcontroller  
    with frequencies of up to 10 kHz.  
    A reduction of the output current at higher temperatures is the result of the negative  
    temperature coefficient of 0.2 %/K. of the LED drivers.  
    With no need for additional external components like inductors, capacitors and  
    free wheeling diodes, the BCR320U/BCR321U LED drivers are a cost-efficient and  
    PCB-area saving solution for driving 0.5W LEDs.  
    2010-01-15  
    1
    BCR320U / BCR321U  
    Pin Configuration  
    Typical Application  
    +Vs  
    6
    5
    4
    µC  
    IEN  
    IOUT  
    EN 1 OUT 2,3,5  
    1
    2
    3
    Rext  
    6
    Vdrop  
    GND  
    4
    BCR321U  
    Type  
    Marking  
    30  
    Pin Configuration  
    2;3;5 = 4 = GND 6 = R  
    OUT  
    Package  
    SC74  
    BCR320U  
    BCR321U  
    1 = EN  
    ext  
    31  
    SC74  
    Maximum Ratings  
    Parameter  
    Symbol  
    Value  
    Unit  
    V
    Enable voltage  
    BCR320U  
    V
    EN  
    25  
    BCR321U  
    4.5  
    Output current  
    Output voltage  
    I
    300  
    16  
    mA  
    V
    out  
    V
    V
    P
    out  
    Reverse voltage between all terminals  
    0.5  
    R
    1000  
    150  
    mW  
    °C  
    Total power dissipation, T = 102 °C  
    tot  
    S
    Junction temperature  
    Storage temperature  
    T
    j
    T
    -65 ... 150  
    stg  
    Thermal Resistance  
    Parameter  
    Symbol  
    Value  
    Unit  
    1)  
    R
    50  
    K/W  
    Junction - soldering point  
    thJS  
    1
    For calculation of R  
    thJA  
    please refer to Application Note Thermal Resistance  
    2010-01-15  
    2
    BCR320U / BCR321U  
    Electrical Characteristics at T =25°C, unless otherwise specified  
    A
    Parameter  
    Symbol  
    Values  
    typ. max.  
    Unit  
    min.  
    Characteristics  
    Collector-emitter breakdown voltage  
    I = 1 mA, I = 0  
    V
    16  
    -
    -
    V
    BR(CEO)  
    C
    B
    Enable current  
    I
    mA  
    EN  
    V
    V
    = 12 , BCR320U  
    = 3.3 , BCR321U  
    -
    -
    1.2  
    1.2  
    -
    -
    EN  
    EN  
    DC current gain  
    I = 50 mA, V = 1 V  
    h
    200  
    350  
    500  
    -
    FE  
    C
    CE  
    Internal resistor  
    = 10 mA  
    R
    R
    65  
    90  
    105  
    Ω
    kΩ  
    int  
    B
    I
    Rint  
    Bias resistor  
    BCR320U  
    BCR321U  
    -
    -
    10  
    -
    -
    1.5  
    mA  
    Output current  
    I
    out  
    V
    V
    V
    = 1.4 V, V = 12 V, BCR320U  
    8
    8
    10  
    10  
    12  
    12  
    out  
    out  
    out  
    EN  
    = 1.4 V, V = 3.3 V, BCR321U  
    EN  
    = 1.4 V, V = 12 V, R  
    = 3 Ω,  
    EN  
    EXT  
    BCR320U  
    = 1.4 V, V = 3.3 , R  
    -
    250  
    -
    -
    V
    = 3 Ω,  
    out  
    EN  
    EXT  
    BCR321U  
    -
    250  
    V
    V
    Voltage drop (V  
    )
    0.85  
    0.95  
    1.05 V  
    Rext  
    drop  
    I = 10 mA  
    C
    DC Characteristics with stabilized LED load  
    -
    1.4  
    -
    V
    Lowest sufficient supply voltage overhead  
    Smin  
    I
    > 18mA  
    out  
    %/K  
    Output current change versus T  
    ∆Iout/Iout  
    ∆Iout/Iout  
    A
    V
    V
    = 12 V; V > 2.0 V, BCR320U  
    -
    -
    -0.2  
    -0.2  
    -
    -
    EN  
    EN  
    out  
    = 3.3 V; V > 2.0 V, BCR321U  
    out  
    %/V  
    Output current change versus V  
    S
    V
    V
    = 12 V; V > 2.0 V, BCR320U  
    -
    -
    1
    1
    -
    -
    EN  
    EN  
    out  
    = 3.3 V; V > 2.0 V, BCR321U  
    out  
    2010-01-15  
    3
    BCR320U / BCR321U  
    Total power dissipation P = f (T )  
    Permissible Pulse Load R  
    = f (t )  
    tot  
    S
    thJS  
    p
    10 3  
    1200  
    mW  
    1000  
    900  
    800  
    700  
    600  
    500  
    400  
    300  
    200  
    100  
    0
    10 2  
    R
    10 1  
    D = 0,5  
    0,2  
    0,1  
    0,05  
    0,02  
    0,01  
    0,005  
    0
    10 0  
    10 -1  
    s
    0
    20  
    40  
    60  
    80  
    100 120  
    150  
    10 -6  
    10 -5  
    10 -4  
    10 -3  
    10 -2  
    10 0  
    °C  
    T
    T
    S
    P
    Permissible Pulse Load  
    P
    / P  
    = f (t )  
    totmax  
    totDC  
    p
    10 3  
    -
    P
    10 2  
    D = 0  
    0.005  
    0.01  
    0.02  
    0.05  
    0.1  
    P
    0.2  
    0.5  
    10 1  
    10 0  
    10 -6  
    10 -5  
    10 -4  
    10 -3  
    10 -2  
    10 0  
    s
    T
    P
    2010-01-15  
    4
    BCR320U / BCR321U  
    BCR320U: Output current versus V  
    BCR320U: Output current versus R  
    ext  
    out  
    I
    = f (V ); V = 12 V;  
    I
    = f (R ); V = 12 V;  
    out  
    out  
    EN  
    out ext EN  
    R
    = Parameter  
    V
    = Parameter  
    out  
    ext  
    0.3  
    0.26  
    Rext = 3 Ohm  
    Rext = 4 Ohm  
    A
    Vout = 5.4V  
    Vout = 1.4V  
    0.22  
    0.2  
    A
    0.18  
    0.16  
    0.14  
    0.12  
    0.1  
    I
    I
    Rext = 6 Ohm  
    Rext = 10 Ohm  
    0.1  
    0.08  
    0.06  
    0.04  
    0.02  
    0
    Rext = 20 Ohm  
    Rext = open  
    0
    Ohm  
    0
    2
    4
    6
    12  
    10 0  
    10 1  
    10 2  
    V
    8
    V
    R
    out  
    ext.  
    BCR320U: Output current versus V  
    BCR320U: Output current versus V  
    out  
    out  
    I
    = f (V ); V = 12 V; R = open;  
    I
    = f (V ); V = 12 V; R = 20 Ohm;  
    out  
    S
    EN  
    ext  
    out S EN ext  
    T = Parameter  
    T = Parameter  
    A
    A
    0.02  
    0.1  
    A
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    0.08  
    0.07  
    A
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    I
    I
    0.06  
    0.01  
    0.05  
    0.04  
    0.03  
    0.02  
    0.01  
    0
    0.005  
    0
    V
    V
    0
    2
    4
    6
    8
    12  
    0
    2
    4
    6
    8
    12  
    V
    V
    out  
    out  
    2010-01-15  
    5
    BCR320U / BCR321U  
    BCR320U: Output current versus V  
    BCR320U: Output current versus V  
    EN  
    out  
    I
    = f (V ); V = 12 V; R = 3 Ohm;  
    I
    = f (V ); V = 2.0 V; R = open;  
    out  
    S
    EN  
    ext  
    out EN out ext  
    T = Parameter  
    T = Parameter  
    A
    A
    0.5  
    0.02  
    TA = 25°C  
    TA = -40°C  
    TA = 85°C  
    A
    A
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    I
    I
    0.3  
    0.01  
    0.2  
    0.1  
    0
    0.005  
    0
    V
    V
    0
    2
    4
    6
    8
    12  
    0
    5
    10  
    15  
    25  
    V
    V
    EN  
    out  
    BCR320U: Output current versus V  
    BCR320U: Output current versus V  
    EN  
    EN  
    I
    = f (V ); V = 2.0 V; R = 20 Ohm;  
    I
    = f (V ); V = 2.0 V; R = 3 Ohm;  
    out  
    EN  
    out  
    ext  
    out EN out ext  
    T = Parameter  
    T = Parameter  
    A
    A
    0.3  
    0.06  
    A
    A
    0.04  
    I
    I
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    0.03  
    0.02  
    0.01  
    0
    TA = 85°C  
    TA = 25°C  
    TA = -40°C  
    0.1  
    0
    V
    V
    0
    5
    10  
    15  
    25  
    0
    5
    10  
    15  
    25  
    V
    V
    EN  
    EN  
    2010-01-15  
    6
    BCR320U / BCR321U  
    BCR320U: Output current versus V  
    BCR320U: Enable current versus V  
    EN  
    EN  
    I
    = f (V ); V = 2.0 V;  
    I
    = f (V ); R = open; I = 0;  
    out  
    EN  
    out  
    EN EN ext out  
    R
    = Parameter  
    T = Parameter  
    ext  
    A
    0.3  
    3
    Rext = 3 Ohm  
    mA  
    TA = 80°C  
    TA = 25°C  
    TA = -40°C  
    Rext = 4 Ohm  
    Rext = 6 Ohm  
    A
    2
    I
    I
    1.5  
    1
    Rext = 10 Ohm  
    Rext = 20 Ohm  
    0.1  
    0.5  
    Rext = open  
    15  
    0
    0
    V
    V
    0
    5
    10  
    25  
    0
    5
    10  
    15  
    25  
    V
    V
    EN  
    EN  
    BCR321U: Output current versus V  
    BCR321U: Output current versus R  
    ext  
    out  
    I
    = f (V ); V = 3.3 V;  
    I
    = f (R ); V = 3.3 V;  
    out  
    out  
    EN  
    out ext EN  
    R
    = Parameter  
    V
    = Parameter  
    ext  
    out  
    0.4  
    0.3  
    Rext = 3 Ohm  
    Vout = 5.4V  
    Vout = 1.4V  
    A
    Rext = 4 Ohm  
    Rext = 6 Ohm  
    A
    I
    I
    0.2  
    0.1  
    Rext = 10 Ohm  
    Rext = 20 Ohm  
    0.1  
    Rext = open  
    0
    0
    10 0  
    10 1  
    10 2  
    V
    8
    Ohm  
    0
    2
    4
    6
    12  
    V
    R
    out  
    ext.  
    2010-01-15  
    7
    BCR320U / BCR321U  
    BCR321U: Output current versus V  
    BCR321U: Output current versus V  
    out  
    out  
    I
    = f (V ); V = 3.3 V; R = open;  
    I
    = f (V ); V = 3.3 V; R = 20 Ohm;  
    out  
    S
    EN  
    ext  
    out S EN ext  
    T = Parameter  
    T = Parameter  
    A
    A
    0.015  
    0.06  
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    A
    A
    I
    I
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    0.005  
    0.02  
    0
    0
    V
    V
    0
    2
    4
    6
    8
    12  
    0
    2
    4
    6
    8
    12  
    V
    V
    out  
    out  
    BCR321U: Output current versus V  
    BCR321U: Output current versus V  
    EN  
    out  
    I
    = f (V ); V = 3.3 V; R = 3 Ohm;  
    I
    = f (V ); V = 2.0 V; R = open;  
    out  
    S
    EN  
    ext  
    out EN out ext  
    T = Parameter  
    T = Parameter  
    A
    A
    0.02  
    0.3  
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    A
    A
    I
    I
    TA = 25°C  
    TA = 85°C  
    TA = -40°C  
    0.01  
    0.1  
    0.005  
    0
    0
    V
    V
    0
    2
    4
    6
    8
    12  
    0
    1
    2
    3
    5
    V
    V
    EN  
    out  
    2010-01-15  
    8
    BCR320U / BCR321U  
    BCR321U: Output current versus V  
    BCR321U: Output current versus V  
    EN  
    EN  
    I
    = f (V ); V = 2.0 V; R = 20 Ohm;  
    I
    = f (V ); V = 2.0 V; R = 3 Ohm;  
    out  
    EN  
    out  
    ext  
    out EN out ext  
    T = Parameter  
    T = Parameter  
    A
    A
    0.3  
    0.06  
    A
    A
    0.04  
    I
    I
    TA = -40°C  
    TA = 25°C  
    TA = 85°C  
    0.03  
    0.02  
    0.01  
    0
    TA = 85°C  
    TA = 25°C  
    TA = -40°C  
    0.1  
    0
    V
    V
    0
    1
    2
    3
    5
    0
    1
    2
    3
    5
    V
    V
    EN  
    EN  
    BCR321U: Output current versus V  
    BCR321U: Enable current versus V  
    EN  
    EN  
    I
    = f (V ); V = 3.3 V;  
    I
    = f (V ); R = open; I = 0;  
    out  
    EN  
    S
    EN EN ext out  
    R
    = Parameter  
    T = Parameter  
    ext  
    A
    4
    0.3  
    Rext = 3 Ohm  
    TA = 80°C  
    TA = 25°C  
    TA = -40°C  
    mA  
    Rext = 4 Ohm  
    A
    I
    I
    Rext = 6 Ohm  
    2
    Rext = 10 Ohm  
    Rext = 20 Ohm  
    0.1  
    1
    Rext = open  
    0
    0
    V
    V
    0
    1
    2
    3
    4
    6
    0
    1
    2
    3
    4
    6
    V
    V
    EN  
    EN  
    2010-01-15  
    9
    BCR320U / BCR321U  
    Application circuit:  
    Application circuit:  
    Enabling / PWM by micro controller  
    Enabling by connecting to Vs  
    +Vs  
    +Vs  
    µC  
    IEN  
    IOUT  
    IEN  
    IOUT  
    EN 1 OUT 2,3,5  
    EN  
    OUT 2,3,5  
    Rext  
    Rext  
    6
    6
    Vdrop  
    Vdrop  
    GND  
    GND  
    4
    4
    BCR320U  
    BCR321U  
    Application hints  
    BCR320U / BCR321U serve as an easy to use constant current sources for LEDs.  
    In stand alone application an external resistor can be connected to adjust the current from  
    10 mA to 250 mA. R can be determined by using the diagram 'Output current versus  
    ext  
    external resistor'. Please take into account that the resulting output currents will be slightly  
    lower due to the self heating of the component and the negative thermal coefficient.  
    Please visit our web site for application notes: www.infineon.com/lowcostleddriver  
    for up-to-date application information  
    2010-01-15  
    10  
    Package SC74  
    BCR320U / BCR321U  
    Package Outline  
    ±0.2  
    2.9  
    B
    1.1 MAX.  
    (2.25)  
    +0.1  
    -0.06  
    0.15  
    (0.35)  
    6
    1
    5
    2
    4
    3
    +0.1  
    -0.05  
    A
    0.35  
    0.95  
    M
    0.2  
    B 6x  
    Pin 1  
    marking  
    0.1 MAX.  
    M
    0.2  
    A
    1.9  
    Foot Print  
    0.5  
    0.95  
    Marking Layout (Example)  
    Small variations in positioning of  
    Date code, Type code and Manufacture are possible.  
    Manufacturer  
    2005, June  
    Date code (Year/Month)  
    Pin 1 marking  
    Laser marking  
    BCW66H  
    Type code  
    Standard Packing  
    Reel ø180 mm = 3.000 Pieces/Reel  
    Reel ø330 mm = 10.000 Pieces/Reel  
    For symmetric types no defined Pin 1 orientation in reel.  
    4
    0.2  
    3.15  
    1.15  
    Pin 1  
    marking  
    2010-01-15  
    11  
    BCR320U / BCR321U  
    Edition 2009-11-16  
    Published by  
    Infineon Technologies AG  
    81726 Munich, Germany  
    2009 Infineon Technologies AG  
    All Rights Reserved.  
    Legal Disclaimer  
    The information given in this document shall in no event be regarded as a guarantee  
    of conditions or characteristics. With respect to any examples or hints given herein,  
    any typical values stated herein and/or any information regarding the application of  
    the device, Infineon Technologies hereby disclaims any and all warranties and  
    liabilities of any kind, including without limitation, warranties of non-infringement of  
    intellectual property rights of any third party.  
    Information  
    For further information on technology, delivery terms and conditions and prices,  
    please contact the nearest Infineon Technologies Office (<www.infineon.com>).  
    Warnings  
    Due to technical requirements, components may contain dangerous substances.  
    For information on the types in question, please contact the nearest Infineon  
    Technologies Office.  
    Infineon Technologies components may be used in life-support devices or systems  
    only with the express written approval of Infineon Technologies, if a failure of such  
    components can reasonably be expected to cause the failure of that life-support  
    device or system or to affect the safety or effectiveness of that device or system.  
    Life support devices or systems are intended to be implanted in the human body or  
    to support and/or maintain and sustain and/or protect human life. If they fail, it is  
    reasonable to assume that the health of the user or other persons may be  
    endangered.  
    2010-01-15  
    12  
    配单直通车
    BCR320U产品参数
    型号:BCR320U
    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：TSSOP, TSOP6,.11,37
    针数：6
    Reach Compliance Code：compliant
    ECCN代码：EAR99
    HTS代码：8542.39.00.01
    风险等级：5.63
    Is Samacsys：N
    接口集成电路类型：LED DISPLAY DRIVER
    JESD-30 代码：R-PDSO-G6
    长度：2.9 mm
    湿度敏感等级：1
    复用显示功能：NO
    功能数量：1
    区段数：1
    端子数量：6
    封装主体材料：PLASTIC/EPOXY
    封装代码：TSSOP
    封装等效代码：TSOP6,.11,37
    封装形状：RECTANGULAR
    封装形式：SMALL OUTLINE
    峰值回流温度（摄氏度）：NOT SPECIFIED
    电源：24 V
    认证状态：Not Qualified
    座面最大高度：1.1 mm
    子类别：Display Drivers
    标称供电电压：24 V
    表面贴装：YES
    端子形式：GULL WING
    端子节距：0.95 mm
    端子位置：DUAL
    处于峰值回流温度下的最长时间：NOT SPECIFIED
    宽度：1.6 mm
    Base Number Matches：1
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