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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTM4615 датащи(PDF) 3 Page - Linear Technology |
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LTM4615 датащи(HTML) 3 Page - Linear Technology |
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3 / 32 page  LTM4639 3 4639f For more information www.linear.com/LTM4639 The l denotes the specifications which apply over the specified internal operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 3.3V, CPWR = 5V, per the typical application in Figure 22. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input Specifications VRUN RUN Pin On Threshold VRUN Rising 1.1 1.25 1.4 V VRUNHYS RUN Pin On Hysteresis 130 mV IQ(VIN) Input Supply Bias Current VIN = 7V, VOUT = 1.5V, Burst Mode Operation, IOUT = 0.1A VIN = 7V, VOUT = 1.5V, Pulse-Skipping Mode, IOUT = 0.1A VIN = 7V, VOUT = 1.5V, Switching Continuous, IOUT = 0.1A Shutdown, RUN = 0, VIN = CPWR = 7V 25 35 68 45 mA mA mA µA IS(VIN) Input Supply Current VIN = 3.3V, VOUT = 1.5V, IOUT = 20A, CPWR = 5V VIN = 7V, VOUT = 1.5V, IOUT = 20A, CPWR = 5V 10.35 4.93 A A IPWR(IN) Control Power Current 3.3VIN to 1.5VOUT at 0A Load, CPWR = 5V 28 mA Output Specifications IOUT(DC) Output Continuous Current Range VIN = 3.3V, VOUT = 1.5V (Note 4) 0 20 A ∆VOUT (Line) VOUT Line Regulation Accuracy VOUT = 1.5V, VIN from 2.375V to 7V, CPWR = 5V, IOUT = 0A l 0.02 0.04 %/V ∆VOUT (Load) VOUT Load Regulation Accuracy VOUT = 1.5V, IOUT = 0A to 20A, VIN = 3.3V, CPWR = 5V (Note 4) l 0.1 0.3 % VOUT(AC) Output Ripple Voltage IOUT = 0A, COUT = 100µF Ceramic, 470µF POSCAP VIN = 3.3V, VOUT = 1.5V, CPWR = 5V 20 mVP-P ∆VOUT(START) Turn-On Overshoot COUT = 100µF Ceramic, 470µF POSCAP, VOUT = 1.5V, IOUT = 0A, VIN = 3.3V, CPWR = 5V 15 mV tSTART Turn-On Time COUT = 100µF Ceramic, 470µF POSCAP, No Load, TRACK/SS = 0.001µF, VIN = 3.3V, CPWR = 5V 0.6 ms ∆VOUTLS Peak Deviation for Dynamic Load Load: 5A to 12.5A Load Step, 1µs Rise Time COUT = 100µF × 2 Ceramic, COUT × 2 POSCAP, VIN = 3.3V, VOUT = 1.5V, CPWR = 5V 30 mV tSETTLE Settling Time for Dynamic Load Step Load: 5A to 12.5A Load Step, 3.3V, VIN = 5V, VOUT = 1.5V COUT = 100µF × 2 Ceramic, 680µF POSCAP 30 µs IOUTPK Output Current Limit VIN = 3.3V, VOUT = 1.5V VIN = 7V, VOUT = 1.5V 30 30 A A Control Section VFB Voltage at VFB Pin IOUT = 0A, VOUT = 1.5V l 0.594 0.60 0.606 V IFB Current at VFB Pin (Note 7) –12 –25 nA VOVL Feedback Overvoltage Lockout l 0.65 0.67 0.69 V ITRACK/SS Track Pin Soft-Start Pull- Up Current TRACK/SS = 0V 1.0 1.2 1.4 µA tON(MIN) Minimum On-Time (Note 3) 100 ns RFBHI Resistor Between VOUT_LCL and VFB Pins 60.05 60.40 60.75 kΩ Remote Sense Amplifier VOSNS+, VOSNS– CM RANGE Common Mode Input Range VIN = 3.3V, Run > 1.4V, CPWR = 5V 0 3.6 V VDIFF_OUT(MAX) Maximum DIFF_OUT Voltage IDIFF_OUT = 300µA INTVCC – 1.4 V VOS Input Offset Voltage VOSNS+ = VDIFF_OUT = 1.5V, IDIFF_OUT = 100µA 2.5 mV |
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