LM7915中文资料.doc

负15V,1A三端稳压器LM7915中文资料(引脚图,电气特性参数,应用电路)图1 LM7915外形引脚排列图管脚图LM7915内部电路图:LM7915电气特性参数:Electrical Characteristics 电气特性 (MC7915) (VI = -23V, IO = 500mA, 0 TJ +125, CI =2.2F, CO =1F, unless otherwise specified.) Parameter 参数 Symbol 符号 Conditions 条件 最小. 典型. 最大. 单位 Output Voltage 输出电压 VO TJ=+25 -14.4 -15 -15.6 V IO = 5mA to 1A, PO 15W VI = -18V to -30V -14.25 -15 -15.75 Line Regulation 线性调整率(Note1) VO TJ=+25 VI = -17.5V to -30V - 12 300 mV VI = -20V to -26V - 6 150 Load Regulation 负载调整率(Note1) (Note1) VO TJ=+25 IO = 5mA to 1.5A - 12 300 mV TJ =+25 IO = 250mA to 750mA - 4 150 Quiescent Current 静态电流 IQ TJ =+25 - 3 6 mA Quiescent Current Change 静态电流变化 IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -18.5V to -30V - 0.1 1 Temperature Coefficient of VD 温度系数 Vo/T IO = 5mA - -0.9 - mV/ Output Noise Voltage 输出噪声电压 VN f = 10Hz to 100KHz TA =+25 - 250 - V Ripple Rejection 纹波抑制 RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage 电压差 VD TJ=+25 IO = 1A - 2 - V Short Circuit Current 短路电流 ISC TJ =+25, VI = -35V - 300 - mA Peak Current 峰值电流 IPK TJ =+25 - 2.2 - A 三端稳压集成电路极限参数： Parameter 参数 Symbol 符号 Value 数值 单位 Input Voltage输入电压 (for VO =5V to 18V) VI 35 V (for VO =24V) VI 40 V Thermal Resistance Junction-Cases 热阻(结到壳) (TO-220) RJC 5 /W Thermal Resistance Junction-Air热阻(结到空气) (TO-220) RJA 65 /W Operating Temperature Range工作温度范围 TOPR 0 +125 Storage Temperature Range储存温度范围 TSTG -65 +