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LM5030 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM5030 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 11 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 to GND (Survival) -0.3V to 100V V CC to GND (Survival) -0.3V to 16V RT to GND (Survival) -0.3V to 5.5V All other pins to GND (Survival) -0.3V to 7V Power Dissipation (Note 2) Internally Limited ESD Rating (Note 3) Human Body Model Machine Model 2kV 200V Lead Temperature (Soldering 4 seconds) 260˚C Storage Temperature Range -55˚C to +150˚C Junction Temperature 150˚C Operating Ratings Junction Temperature -40˚C to +105˚C V IN 14V to 90V Electrical Characteristics 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, and RT = 26.7K Ω Symbol Parameter Conditions Min (Note 4) Typ (Note 5) Max (Note 4) Units Startup Regulator V CCReg V CC Regulation open ckt 7.4 7.7 8.0 V V CC Current Limit (Note 2) 10 17 mA I-V IN Startup Regulator Leakage (external Vcc Supply) V IN = 90V 150 500 µA I IN Shutdown Current SS = 0V, V CC = open 250 350 µA V CC Supply V CC undervoltage Lockout Voltage VccReg - 300mV VccReg - 100mV V Undervoltage Hysteresis 1.2 1.6 2.1 V I CC Supply Current Cload = 0 2 3 mA Error Amplifier GBW Gain Bandwidth 4 MHz DC Gain 75 dB Input Voltage V FB = COMP 1.220 1.245 1.270 V COMP Sink Capability V FB = 1.5V COMP= 1V 5 13 mA Current Limit CS1 Cycle by Cycle CS Threshold Voltage 0.45 0.5 0.55 V CS2 Restart CS Threshold Voltage Resets SS capacitor; auto restart 0.575 0.625 0.675 V ILIM Delay to Output CS step from 0 to 0.6V Time to onset of OUT Transition (90%) Cload = 0 30 ns CS Sink Current (clocked) CS = 0.3V 3 6mA Soft Start/Shutdown Softstart Current Source 7 10 13 µA Softstart to COMP Offset 0.25 0.5 0.75 V Shutdown Threshold 0.2 0.45 0.7 V www.national.com 4 |
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