LM7912中文资料

LM7912中文资料Createdon4/11/20126:33:00PMPage1of4CreatedbyAlukyLiuElectricalCharacteristics电气特性(MC7912)(VI=-18V,IO=500mA,0℃≤TJ≤+125℃,CI=2.2μF,CO=1μF,unlessotherwisespecified.)Parameter参数Symbol符号Conditions条件最小典型最大单位TJ=+25℃-11.5-12-12.5OutputVoltage输出电压VOIO=5mAto1A,PO≤15WVI=-15.5Vto-27V-11.4-12-12.6VVI=-14.5Vto-30V-12240LineRegulation线性调整率(Note1)ΔVOTJ=+25℃VI=-16Vto-22V-6120mVTJ=+25℃IO=5mAto1.5A-12240LoadRegulation负载调整率(Note1)(Note1)ΔVOTJ=+25℃IO=250mAto750mA-4120mVQuiescentCurrent静态电流IQTJ=+25℃-36mAIO=5mAto1A-0.050.5QuiescentCurrentChange静态电流变化ΔIQVI=-15Vto-30V-0.11mATemperatureCoefficientofVD温度系数ΔVo/ΔTIO=5mA--0.8-mV/℃OutputNoiseVoltage输出噪声电压VNf=10Hzto100KHzTA=+25℃-200-μVRippleRejection纹波抑制RRf=120HzΔVI=10V5460-dBDropoutVoltage电压差VDTJ=+25℃IO=1A-2-VShortCircuitCurrent短路电流ISCTJ=+25℃,VI=-35V-300-mAPeakCurrent峰值电流IPKTJ=+25℃-2.2-A三端稳压集成电路极限参数：Parameter参数Symbol符号Value单位(forVO=5Vto18V)VI35VInputVoltage输入电压(forVO=24V)VI40VThermalResistanceJunction-Cases热阻(结到壳)(TO-220)RθJC5℃/WThermalResistanceJunction-Air热阻(结到空气)(TO-220)RθJA65℃/WOperatingTemperatureRange工作温度范围TOPR0~+125℃StorageTemperatureRange储存温度范围TSTG-65~+150℃图179XX内部电路图LM7912中文资料Createdon4/11/20126:33:00PMPage2of4CreatedbyAlukyLiu图2外形引脚排列图管脚图图379XX参照测试电路及典型电路图4输出电压图5负载调节率曲线图LM7912中文资料Createdon4/11/20126:33:00PMPage3of4CreatedbyAlukyLiu图6电压差曲线图图7静态电流曲线图图8短路电流曲线图图9与78XX系列三端稳压构成的正负对称输出电压应用电路图LM7912中文资料Createdon4/11/20126:33:00PMPage4of4CreatedbyAlukyLiu图10TO-220封装图片