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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC3819EG датащи(PDF) 2 Page - Linear Technology |
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LTC3819EG датащи(HTML) 2 Page - Linear Technology |
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2 / 32 page  2 LTC3819 3819f ORDER PART NUMBER LTC3819EG ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO TJMAX = 125°C, θJA = 85°C/W ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VBIAS = 5V, VRUN/SS = 5V unless otherwise noted. (Note 1) Input Supply Voltage (VIN).........................36V to –0.3V Topside Driver Voltages (BOOST1,2) .........42V to – 0.3V Switch Voltage (SW1, 2) .............................36V to – 5 V SENSE1+, SENSE2 +, SENSE1–, SENSE2 – Voltages ................... (1.1)INTVCC to –0.3V EAIN, VOS+, VOS–, EXTVCC, INTVCC, RUN/SS, VBIAS, ATTENIN, ATTENOUT, PGOOD, NO_CPU, VID0–VID4, Voltages ...............................7V to – 0.3V Boosted Driver Voltage (BOOST-SW) .......... 7V to – 0.3V PLLFLTR, PLLIN, VDIFFOUT, FCB Voltages ................................... INTVCC to –0.3V ITH Voltage ................................................2.7V to –0.3V Peak Output Current <1 µs(TG1, 2, BG1, 2)................ 3A INTVCC RMS Output Current ................................ 50mA Operating Ambient Temperature Range (Note 2) .............................................. – 40 °C to 85°C Junction Temperature (Note 3) ............................. 125 °C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TOP VIEW G PACKAGE 36-LEAD PLASTIC SSOP 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 RUN/SS SENSE1+ SENSE1– EAIN PLLFLTR PLLIN FCB ITH SGND VDIFFOUT VOS – VOS + SENSE2– SENSE2+ ATTENOUT NO_CPU VID0 VID1 PGOOD TG1 SW1 BOOST1 VIN BG1 EXTVCC INTVCC PGND BG2 BOOST2 SW2 TG2 ATTENIN VBIAS VID4 VID3 VID2 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loop VEAIN Regulated Feedback Voltage ITH Voltage = 1.2V; Measured at VEAIN (Note 4) ● 0.594 0.600 0.606 V VSENSEMAX Maximum Current Sense Threshold ● 62 75 88 mV IINEAIN Feedback Current (Note 4) – 5 – 50 nA VLOADREG Output Voltage Load Regulation (Note 4) Measured in Servo Loop, ∆ITH Voltage: 1.2V to 0.7V ● 0.1 0.5 % Measured in Servo Loop, ∆ITH Voltage: 1.2V to 2V ● – 0.1 – 0.5 % VREFLNREG Reference Voltage Line Regulation VIN = 3.6V to 30V (Note 4) 0.002 0.02 %/V VFCB Forced Continuous Threshold ● 0.57 0.6 0.63 V IFCB Forced Continuous Current – 0.17 – 1 µA VBINHIBIT Burst Inhibit (Constant Frequency) Measured at FCB pin 4.3 4.8 V Threshold VOVL Output Overvoltage Threshold Measured at VEAIN ● 0.64 0.66 0.68 V UVLO Undervoltage Lockout VIN Ramping Down 3 3.33 4 V Consult LTC Marketing for parts specified with wider operating temperature ranges. Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ |
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