ULN2003原理.doc

在自动化密集的的场合会有很多被控元件如继电器，微型电机，风机，电磁阀，空调，水处理等元件及设备，这些设备通常由CPU所集中控制，由于控制系统不能直接驱动被控元件，这需要由功率电路来扩展输出电流以满足被控元件的电流，电压。ULN2XXXX高压大电流达林顿晶体管阵列系列产品就属于这类可控大功率器件，由于这类器件功能强、应用范围语广。因此，许多公司都生产高压大电流达林顿晶体管阵列产品，从而形成了各种系列产品。838电子ULN2003是什么-原理：LN2003也是一个7路反向器电路，即当输入端为高电平时ULN2003输出端为低电平，当输入端为低电平时ULN2003输出端为高电平，继电器得电吸合。如图九所示功能特点：高电压输出50V 输出钳位二极管 输入兼容各种类型的逻辑电路 应用继电器驱动器 ULN200X逻辑图 DISSIPATION RATING TABLE耗散评级表 PACKAGE封装 TA=25 POWER RATING 额定功率DERATING FACTOR ABOVE功耗系数 TA=25TA=85 POWER RATING 额定功率D950 mW838电子7.6 mW/494 mWN1150 mW9.2 mW/598 mWelectrical characteristics, 电气特性（除非另有说明）TA = 25 (unless otherwise noted) PARAMETER 参数测试图TEST CONDITIONS 测试条件ULN2001AULN2002A单位最小典型最大最小典型最大-VI(on)On-state input voltage 输入电压6VCE=2V, IC =300mA-13VVCE(sat)Collector-emitter saturation voltage集电极-发射极饱和电压5II=250A,IC=100mA-0.91.1-0.91.1VII=350A, IC=200mA-11.3-11.3II=500A, IC=350mA-1.21.6-1.21.6VF Clamp forward voltage 正向钳位电压8IF = 350mA-1.72-1.72VICEXCollector cutoff current集电极截止电流1VCE = 50V, II = 0-50-50A2VCE=50V,TA= 70II=0- 100-100-VI=6V-500II(off) Off state input current关闭状态下输入电流3VCE=50V,TA=70 IC=500A,5065-5065-AIIInput current 输入电流4VI = 17 V-0.821.25mAIRClamp reverse current 反向钳位电流7VR=50V, TA=70-100-100AVR = 50 V-50-50hFEStatic forward-current transfer ratio 静态正向电流传输比5VCE=2V, IC =350mA1000-CiInput capacitance 输入电容-VI = 0, f = 1MHz 1525 1525pFelectrical characteristics, 电气特性（除非另有说明）TA = 25 (unless otherwise noted) PARAMETER 参数测试图TEST CONDITIONS 测试条件ULN2003AULN2004A单位最小典型最大最小典型最大VI(on)On state input voltage输入电压66VCE=2VIC=125mA 5VIC=200mA-2.4-6IC=250mA-2.7-IC=275mA-7IC=300mA-3-IC=350mA 8VCE(sat)ittCollector-emitter saturation voltage集电极发射极饱和电压5II = 250A, IC=100mA-0.91.1 0.91.1VII = 350A, IC =200mA-11.3 11.3II = 500A, IC=350mA-1.21.6 1.21.6ICEXCollector cutoff current 集电极截止电流1VCE = 50V, II = 0-50- 50A22VCE=50V,TA=70II = 0-100-100-VI = 1V-500VFClamp forward voltage 正向钳位电压8IF = 350mA-1.72-1.72VII(off)Off state input current 关闭状态下输入电流33VCE = 50 V, CE , TA = 70 IC = 500A5065-5065-AIIInput current输入电流4VI = 3.85 V-0.931.35-mAVI = 5 V-0.350.5VI = 12 V-11.45IRClamp reverse current 反向钳位电流77VR = 50 V-50-50AVR = 50 V, TA = 70-100-100CiInput capacitance输入电容-VI = 0, f =1MHz-1525 1525pFelectrical characteristics, 电气特性（除非另有说明）TA = 25 (unless otherwise noted) PARAMETER 参数测试图TEST CONDITIONS 测试条件ULQ2003AULQ2004A单位最小典型最大最小典型最大VI(on)On state input voltage输入电压6VCE=2VIC=125mA 5VIC=200mA-2.7-6IC=250mA-2.9-IC=275mA-7IC=300mA-3-IC=350mA 8VCE(sat)ittCollector-emitter saturation voltage集电极发射极饱和电压5II = 250A, IC=100mA-0.91.1 0.91.1VII = 350A, IC =200mA-11.3 11.3II = 500A, IC=350mA-1.21.6 1.21.6ICEXCollector cutoff current 集电极截止电流1VCE = 50V, II = 0-50- 50A22VCE=50VII = 0-100-100VI = 1V-500VFClamp forward voltage 正向钳位电压8IF =350mA-1.72-1.72VII(off)Off state input current 关闭状态下输入电流3VCE =50V, IC=500A3065-5065-AIIInput current输入电流4VI = 3.85V-0.931.35-mAVI = 5V-0.350.5VI = 12V-11.45IRClamp reverse current 反向钳位电流7VR = 50V TA =25-100-50AVR = 50V-100-100CiInput capacitance输入电容-VI = 0, f=1MHz-1525 1525pF switching characteristics, 开关特性TA = 25 PARAMETER 参数TEST CONDITIONS 测试条件ULN2001A,ULN2002A, ULN2003A,ULN2004A单位最小典型最大-tPLHPropagation delay time, low- to high-level output传播延迟时间，从低到高输出See Figure 9-0.251stPHLPropagation delay time, high- to low-level output 传播延迟时间，从高到低输出See Figure 9-0.251sVOHHigh-level output voltage after switching 输出高电平电压VS=50V, IO300mA, See Figure 10VS20-mVswitching characteristics over recommended operating conditions (unless otherwise noted)开关特性的建议运行条件（除非另有说明） PARAMETER 参数838电子TEST CONDITIONS 测试条件 ULQ2003A,ULQ2004A单位最小典型最大tPLHPropagation delay time, low- to high-level output 传播延迟时间，从低到高输出See Figure 9-110stPHLPropagation delay time, high- to low-level output 传播延迟时间，从高到低输出See Figure 9-110sVOHHigh-level output voltage after switching 输出高电平电压VS=50V, IO300mA, See Figure 10VS500-mV 图一 ULN2001A内部电路图 图二 ULN2002A内部电路图 图三 ULN2003A ULN2004A ULQ2003A ULQ2004A内部电路图- 图1 ICEX测试电路 图2 ICEX测试电路 图3 ICEX测试电路 图4ICEX测试电路 图5 hFE, VCE(sat)测试电路 图6 VI(on) 测试电路- 图四 参数测量信息 应用电路： 图五MOS管加载到输入端 图六 TTL电路到输入端 图七 冲区高电流负载 图八 使用上拉电阻提高驱动电流 图九 实际应用的UL2003电路图 absolute maximum ratings at=25 free-air temperature (unless otherwise noted)绝对最大额定值at=25Collector-emitter voltage 集电极-发射极电压50 VClamp diode reverse voltage 钳位二极管的反向电压（见注1 ）50 VInput voltage, VI (see Note 1) 输入电压30 VPeak collector current (see Figures 14 and 15)峰值集电极电流500 mA Output clamp current, IOK .输出钳位电流500 mATotal emitter-terminal current 共发射极端子电流2.5 AContinuous total power dissipation . 连续总功耗See Dissipation Rating TablePackage thermal impedance, JA 封装热阻(see No