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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC3407-4 датащи(PDF) 2 Page - Linear Technology |
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LTC3407-4 датащи(HTML) 2 Page - Linear Technology |
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2 / 16 page  LTC3407-4 2 34074f TOP VIEW DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN 10 11 9 6 7 8 4 5 3 2 1 VFB2 RUN2 POR SW2 MODE/ SYNC VFB1 RUN1 VIN SW1 GND VIN Voltages.................................................– 0.3V to 6V VFB1, VFB2 Voltages......................... – 0.3V to VIN + 0.3V RUN1, RUN2 Voltages ................................ –0.3V to VIN MODE/SYNC Voltage .................................. – 0.3V to VIN SW1, SW2 Voltage ......................... – 0.3V to VIN + 0.3V POR Voltage ................................................– 0.3V to 6V ABSOLUTE AXI U RATI GS (Note 1) Ambient Operating Temperature Range (Note 2) ....................................... – 40 °C to 85°C Junction Temperature (Note 5) ............................. 125 °C Storage Temperature Range ................. – 65 °C to 125°C Lead Temperature (Soldering, 10 sec) LTC3407-4EMSE only ...................................... 300 °C Reflow Peak Body Temperature ............................ 260 °C ORDER PART NUMBER DD PART MARKING TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W EXPOSED PAD (PIN 11) IS PGND, MUST BE CONNECTED TO GND LCJD LTC3407EDD-4 PACKAGE/ORDER I FOR ATIO Consult LTC Marketing for parts specified with wider operating temperature ranges. MSE PART MARKING TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W EXPOSED PAD (PIN 11) IS PGND, MUST BE CONNECTED TO GND LTC3407EMSE-4 TOP VIEW 1 2 3 4 5 VFB1 RUN1 VIN SW1 GND 10 9 8 7 6 VFB2 RUN2 POR SW2 MODE/ SYNC 11 MSE PACKAGE 10-LEAD PLASTIC MSOP ORDER PART NUMBER 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/ ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, unless otherwise specified. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Voltage Range ● 2.5 5.5 V IFB Feedback Pin Input Current ● 30 nA VFB Feedback Voltage (Note 3) 0 °C ≤ TA ≤ 85°C 0.588 0.6 0.612 V –40 °C ≤ TA ≤ 85°C ● 0.585 0.6 0.612 V ∆VLINE REG Reference Voltage Line Regulation VIN = 2.5V to 5.5V (Note 3) 0.3 0.5 %/V ∆VLOAD REG Output Voltage Load Regulation (Note 3) 0.5 % IS Input DC Supply Current (Note 4) Active Mode VFB1 = VFB2 = 0.5V 700 950 µA Sleep Mode VFB1 = VFB2 = 0.63V, MODE/SYNC = 3.6V 40 60 µA Shutdown RUN = 0V, VIN = 5.5V, MODE/SYNC = 0V 0.1 1 µA fOSC Oscillator Frequency VFBX = 0.6V ● 1.8 2.25 2.7 MHz fSYNC Synchronization Frequency 2.25 MHz ILIM Peak Switch Current Limit VIN = 3V, VFBX = 0.5V, Duty Cycle <35% 0.95 1.2 1.6 A RDS(ON) Top Switch On-Resistance (Note 6) 0.35 0.45 Ω Bottom Switch On-Resistance (Note 6) 0.30 0.45 Ω ISW(LKG) Switch Leakage Current VIN = 5V, VRUN = 0V, VFBX = 0V 0.01 1 µA LTCJC |
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