X78XXX7824??????
??????????????????
??????????????????23242522.8
24
176155.05.2
25.248024048024080.50.8
????VVmVmVmVmVmAmAmAmV/°CμVdBVm?mAA
??????????????0 ?????????????????????? Tj=25°C Vo5.0mA Vi=27V to 38V ?VoTj=25°C,Vi=27V to 38V?????????? Tj=25°C,Vi=30V to 36V ?VoTj=25°C,Io=5.0mA to 1.5A?????????? Tj=25°C,Io=250mA to 750mA IQTj=25°C???????? Io=5mA to 1.0A?IQ?????????????? Vi=27V to 38V ?Vo/?TIo=5mA???????????? VNf=10Hz to 100kHz,Ta=25°C???????????? RRf=120Hz, Vi=28V to 38V?????????? VoIo=1.0A,Tj=25°C?????????????? Rof=1kHz???????? IscVi=35V,Ta=25°C???????? IpkTj=25°C???????? 50 1.5 160672282302.2 ?????????? ViC10.33??F1X78XX23VoC00.1??FVi1X78XX23RLTIP31100??Vo270pF0.33??F30??s??1 ??????????????????????2 ?????????????????? Vi5.1??1X78XX23RLVo470??F0.33??F120Hz??3 ?????????????????? X78XX 6 2005.09.09 V1.2 www.x-jiazhi.com X78XX ?????????? ViC10.33??F?????????????????? 1X78XX23VoC00.1??FVi1X78XX2IQ3R1VoVxx0.33??F0.1??FIo=Vxx+IQR1RLIo??4 ???????????????? Vi??5 ???????????? VoVxxVi1X78XX2IQ3R11X78XX23Vo0.33??F0.1??F0.33??FQIR1>=5*I0.1??FR2X74110k??Vo=Vxx*(1+R2/R1)+ IQ*R2??6 ?????????????????? ??7 ?????????????? ViViQ1 BD536IQ1R130??VoIO0.1??F/ IscRsc=VBEQ2Io=IREG*(IREG-VBEQ1/R1)R1=VBEQ1/IREQ-IQ1*Q1R130??3Q2 TIP420.33??FRscQ1 BD536Vo1X78XX231IREGX78XX20.1??F0.33??F??8 ?????????????????? ??9 ?????????????????????? X78XX7 2005.09.09 V1.2 www.x-jiazhi.com X78XX Vi0.33??FGNDX741-VinTIP424.7k??-Vo?????????????????? 1X78XX234.7k??Vo20V1X78XX23+15V0.1??FGND0.33??F2.2??F20.1??F????F1N40011N40011X7915-20V3-15V??10 ???????????????? ??11 ??????????(±15V,1A) VoViD45H114.7??470??1mHVo20.1??F310??F1X78XX1Z10.5??X78XX232000??F??12 ?????????????????? ??13 ???????????? X78XX 8 2005.09.09 V1.2 www.x-jiazhi.com X78XX ?????????????????? ?????????????? ??14 ????????????????????????????????15 ??????????????????????????????6.001.01Vi=10V5.75Vo=5VVi-Vo=5VIo=5mAIo=5mA)5.501.00mA()V(??5.25??????????5.00????0.994.750.98-50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 ????????(??????????(????16 ??????????????17 ??????????????????????????????3.07T??T??Vo=5V2.5??V6.5Io=10mA2.06. )(A)A??m??1.5(5.5????????1.0????50.54.50 4 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 ?????????????????????? (V)X78XX 2005.09.09 V1.2 9 www.x-jiazhi.com 52=jVm01=o X78XX ??????????TO-220?????????????????? UNIT: mmX78XX 10 2005.09.09 V1.2 www.x-jiazhi.com X78XX ?????????????????? ?????????? ?? ?? ?????????? 05.06.30 05.09.09 V1.1V1.2 ????????????”????????????????”????????????????” 11010 ?? ?? ???? X78XX 11 2005.09.09 V1.2 www.x-jiazhi.com