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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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LM2567 bảng dữ liệu(PDF) 2 Page - National Semiconductor (TI) |
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LM2567 bảng dữ liệu(HTML) 2 Page - National Semiconductor (TI) |
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2 / 8 page  Absolute Maximum Ratings (Note 1) If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications Supply Voltage 40V Output Switch Voltage 50V Output Switch Current 60A Power Dissipation Internally Limited Storage Temperature Range b 65 Cto a150 C Lead Temperature (Soldering 10 sec) 260 C Maximum Junction Temperature 150 C Minimum ESD Rating (C e 100 pF R e 15 kX)2 kV Operating Ratings Supply Voltage 35V s VIN s 35V Output Switch Voltage 0V s VSW s 45V Output Switch Current ISW s 30A Junction Temperature Range 0 C s TJ s a125 C Ambient Temperature Range 0 C s TA s a70 C Electrical Characteristics Specifications with standard type face are for TJ e 25 C and those in bold typeface apply over full Operating Temperature Range Unless otherwise specified VIN e 5V VFB e VREF and ISWITCH e 0 (Note 2) Symbol Parameter Conditions Typ Min Max Units GENERAL DEVICE PARAMETERS IS Input Supply Current VFB e 15V (Switch Off) 75 100 mA 140 mA ISW e 20A 20 50 mA VCOMP e 20V (Max Duty Cycle) 85 mA VUV Input Supply ISW e 100 mA 290 260 310 V Undervoltage Lockout VCOMP e 12V 255 315 V fO Oscillator Frequency Measured at Switch Pin 52 48 56 kHz ISW e 100 mA 42 62 kHz VREF Reference Voltage Measured at Feedback Pin 1230 1214 1246 V VIN e 35V to 35V 1206 1254 V VCOMP e 10V D VREF Reference Voltage VIN e 35V to 35V 05 mV D VIN Line Regulation iJA Thermal Resistance Junction-to-Ambient (Note 3) 100 CW ERROR AMPLIFIER PARAMETERS IB Error Amp VCOMP e 10V 100 300 nA Input Bias Current 800 nA GM Error Amp ICOMP eb30 mAto a30 mA 3700 2400 4800 m mho Transconductance VCOMP e 10V 1600 5800 m mho AV Error Amp VCOMP e 11V to 16V 800 500 VV Voltage Gain RCOMP e 10 MX (Note 4) 250 VV Error Amp Upper Limit 24 22 V Output Swing VFB e 10V 20 V Lower Limit 03 040 V VFB e 15V 055 V Error Amp VFB e 10V to 15V g 200 g 130 g 300 m A Output Current VCOMP e 10V g 90 g 400 m A ISS Soft Start Current VFB e1 0V 50 25 75 m A VCOMP e 0V 15 95 m A D Maximum Duty Cycle VCOMP e 12V 95 93 % ISW e 100 mA 88 % 2 |
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