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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT8602 датащи(PDF) 3 Page - Linear Technology |
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LT8602 датащи(HTML) 3 Page - Linear Technology |
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3 / 38 page  LT8603 3 8603f For more information www.linear.com/LT8603 ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS Bias and Internal Regulators Minimum Operating VIN for Channels 1, 2 and 3 l 2.7 3.0 V Minimum VIN to Start for Channels 1, 2 and 3 l 3.1 3.3 V Minimum Operating VIN for Channel 4 l 3.0 3.2 V Minimum VIN to Start for Channel 4 l 4.0 4.15 V VIN Quiescent Current, Shutdown VBIAS = 0V, EN/UVLO = 0.4V 0.1 1 μA Total Operating Current VBATT VBATT = 12V, Channels 1 and 2 Active, No-Load (Note 4) VBATT = 12V, All Channels Active, No-Load (Note 4) 28 50 μA μA EN/UVLO Threshold EN/UVLO Rising l 1.15 1.2 1.25 V EN/UVLO Falling l 1.1 1.15 1.2 V EN/UVLO Input Current EN/UVLO = 1.2V –50 50 nA INTVCC4 Regulated Voltage VBIAS = 0V VBIAS = 6V l l 4.4 4.7 4.6 5 4.8 5.2 V V INTVCC4 Regulator Load Regulation INTVCC4 at 1mA – INTVCC4 at 40mA 70 mV Oscillator Switching Frequency RT = 28.7kΩ RT = 243kΩ l l 1.8 0.224 2 0.25 2.2 0.284 MHz MHz SYNC Input Frequency Range l 0.25 2.2 MHz SYNC Input Voltage Low l 0.3 V SYNC Input Voltage High l 1.2 V SYNC Input Current –100 100 nA FSEL4A, FSEL4B Input Voltage Low l 0.4 V FSEL4A, FSEL4B Input Voltage High l 2 V FSEL4A, FSEL4B Input Current l –100 100 nA Channel 1 Feedback Voltage FB1 l 0.985 1 1.015 V Input Current FB1 l –100 100 nA FB1 Line Regulation VIN = 3V to 42V 0.002 0.01 %/V SW1 Peak Current Limit (Note 3) 2.0 2.7 3.7 A SW1 Leakage Current 0.1 1 μA SW1 Top On-Resistance ISW1 = 1A 240 mΩ SW1 Bottom On-Resistance ISW1 = 1A 170 mΩ Lower FB1 Power Good Threshold Percentage of VFB1, VFB1 Falling l 89 92 95 % Upper FB1 Power Good Threshold Percentage of VFB1, VFB1 Rising l 104 107 110 % Power Good Threshold Hysteresis 0.8 % PG1 Output Voltage Low IPG1 = 350μA l 0.13 0.3 V PG1 Leakage Current PG1 = 5V, FB1 = 1V l 6 μA TRKSS1 Pull-Up Current TRKSS1 = 0.2V 1.5 2.4 3.1 μA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, EN/UVLO = 3V unless otherwise noted. (Note 2) |
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