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LM5070SDX-50 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM5070SDX-50 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 17 page  Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V IN ,RTN to VEE -0.3V to 80V RSIG to V IN -12V to 0V UVLO to V EE -0.3V to 57V UVLORTN -0.3V to 13V RCLASS, RCLP to V EE -0.3V to 7V ARTN to RTN -0.3V to 0.3V V CC, OUT to ARTN -0.3V to 16V All other inputs to ARTN -0.3V to 7V ESD Rating Human Body Model 2000V Storage Temperature -65˚C to +150˚C Junction Temperature 150˚C Lead Temperature (Note 2) Wave (4 seconds) Infrared (10 seconds) Vapor Phase (75 seconds) 260˚C 240˚C 219˚C Operating Ratings V IN voltage 1.8V to 75V External voltage applied to V CC 8.1V to 15V Operating Junction Temperature -40˚C to +125˚C Electrical Characteristics (Note 3) Specifications in standard type face are for T J= +25˚C and those in boldface type apply over the full operating junction tem- perature range. Unless otherwise specified: V IN = 48V, VCC = 10V, RT = 30.3k Ω. Symbol Parameter Conditions Min Typ Max Units Powered Interface IOS Offset Current V IN < 10.0V 10 V VCLSS(ON) Signature Resistor Disable / Classification Current Turn On V IN with respect to VEE 10.0 11.5 12.5 V VCLSS(OFF) Classification Current Turn Off V IN with respect to VEE 20.5 22.0 23.0 V Classification Voltage With respect to V EE 1.43 1.5 1.57 V ICLASS Supply Current During Classification V IN =17V 0.5 1.5 mA IDC Supply Current During Normal Operation OUT floating 1 1.9 mA UVLO Pin Reference Voltage V IN > 12V 1.95 2.00 2.05 V UVLO Hysteresis Current V IN > UVLO 8.0 10 11.5 uA Softstart Release RTN falling with respect to V EE 1.2 1.45 1.7 V Softstart Release Hysteresis RTN rising with respect to V EE 0.8 1.1 1.3 V RDS(ON) PowerFET Resistance I = 350mA, V IN = 48V 1 2.2 Ω ILEAK SMPS Bias Current V EE = 0V, VIN = RTN = 57V 100 uA ILIM Default Current Limit V EE = 0V, RTN = 3.0V, Temp = 0˚C to 85˚C 350 390 420 mA ILIM Default Current Limit V EE = 0V, RTN = 3.0V, Temp = -40˚C to 125˚C 325 390 420 mA Current Limit Programming Accuracy V EE = 0V, RTN = 3.0V, RCLP = 80.6k Ω -20 +20 % Startup Regulator VccReg V CC Regulation Open ckt 7.5 7.8 8.1 V V CC Current Limit (Note 4) 15 20 mA www.national.com 4 |
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