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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT1304 датащи(PDF) 2 Page - Linear Technology |
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LT1304 датащи(HTML) 2 Page - Linear Technology |
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2 / 16 page  2 LT1304/LT1304-3.3/LT1304-5 ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION VIN Voltage ................................................................ 8V SW Voltage ............................................... – 0.4V to 25V FB Voltage (LT1304) ...................................... VIN + 0.3V Sense Voltage (LT1304-3.3/LT1304-5) ..................... 8V ILIM Voltage .............................................................. 5V SHDN Voltage ............................................................ 6V LBI Voltage ............................................................... VIN LBO Voltage ............................................................... 8V Maximum Power Dissipation ............................. 500mW Junction Temperature .......................................... 125 °C Operating Temperature Range ..................... 0 °C to 70°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C LT1304CS8 LT1304CS8-3.3 LT1304CS8-5 1304 13043 13045 S8 PART MARKING ORDER PART NUMBER 1 2 3 4 8 7 6 5 TOP VIEW LBI LBO VIN SW FB (SENSE)* SHDN ILIM GND S8 PACKAGE 8-LEAD PLASTIC SO *FIXED OUTPUT VERSION TJMAX = 125°C, θJA = 150°C/W PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Operating Voltage q 1.5 1.65 V Operating Voltage Range q 8V Quiescent Current VSHDN = 2V, Not Switching q 120 200 µA Quiescent Current in Shutdown VSHDN = 0V, VIN = 2V q 715 µA VSHDN = 0V, VIN = 5V q 27 50 µA Comparator Trip Point LT1304 q 1.22 1.24 1.26 V FB Pin Bias Current LT1304 q 10 25 nA Sense Pin Leakage in Shutdown VSHDN = 0V, Fixed Output Versions q 0.002 1 µA Output Sense Voltage LT1304-3.3 q 3.17 3.3 3.43 V LT1304-5 q 4.80 5.05 5.25 V Line Regulation 1.8V ≤ VIN ≤ 8V q 0.04 0.15 %/V LBI Input Threshold Falling Edge q 1.10 1.17 1.25 V LBI Bias Current q 620 nA LBI Input Hysteresis q 35 65 mV LBO Output Voltage Low ISINK = 500µA q 0.2 0.4 V LBO Output Leakage Current LBI = 1.5V, LBO = 5V q 0.01 0.1 µA SHDN Input Voltage High q 1.4 V SHDN Input Voltage Low q 0.4 V SHDN Pin Bias Current VSHDN = 5V q 58 µA VSHDN = 0V q –5 –2 µA Switch OFF Time q 1 1.5 2 µs Switch ON Time Current Limit Not Asserted q 468 µs Maximum Duty Cycle Current Limit Not Asserted q 76 80 88 % Peak Switch Current ILIM Pin Open, VIN = 5V 0.8 1 1.2 A 20k from ILIM to GND 500 mA VIN = 2V, VSHDN = 2V unless otherwise noted. ELECTRICAL C C HARA TERISTICS Consult factory for Industrial and Military grade parts. |
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