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LMS1487ECM Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LMS1487ECM Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 13 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. Supply Voltage, V CC (Note 2) 6V Input Voltage, V IN (DI, DE, or RE) −0.3V to V CC + 0.3V Voltage Range at Bus Terminals (AB) −7V to 12V Receiver Output −0.3V to V CC + 0.3V Package Thermal Impedance, θ JA SOIC 125˚ C/W DIP 92˚ C/W Junction Temperature (Note 3) 150˚C Operating Free-Air Temperature Range, T A Commercial 0˚C to 70˚C Industrial −40˚C to 85˚C Storage Temperature Range −65˚C to 150˚C Soldering Information Infrared or Convection (20 sec.) 235˚C Lead Temperature Range +260˚C ESD Rating (Human Body Model)(Note 4) Bus Pins 15kV Other Pins 2kV ESD Rating (Machine Model) All Pins 200V Operating Ratings Min Nom Max Supply Voltage, V CC 4.75 5.0 5.25 V Voltage at any Bus Terminal (Separately or Common Mode) −7 12 V High-Level Input Voltage, V IH (Note 5) 2V Low-Level Input Voltage, V IL (Note 5) 0.8 V Differential Input Voltage, V ID (Note 6) ±12 V Electrical Characteristics Over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units Driver Section |V OD1| Differential Output Voltage R = ∞ (Figure 1) 5.25 V |V OD2| Differential Output Voltage R = 50 Ω (Figure 1) , RS-422 2.0 V R=27 Ω (Figure 1) , RS-485 1.5 5.0 ∆V OD Change in Magnitude of Driver Differential Output Voltage for Complementary Output States R=27 Ω or 50Ω (Figure 1) , (Note 7) 0.2 V V OC Common Mode Output Voltage R=27 Ω or 50Ω (Figure 1) 3.0 V ∆V OC Change in Magnitude of Driver Common-Mode Output Voltage for Complementary Output States R=27 Ω or 50Ω (Figure 1), (Note 7) 0.2 V V IH CMOS Input Logic Threshold High DE, DI, RE 2.0 V V IL CMOS Input Logic Threshold Low DE, DI, RE 0.8 V I IN1 Logic Input Current DE, DI, RE ±2µA Receiver Section I IN2 Input Current (A, B) DE = 0V, V CC = 0V or 5.25V V IN = 12V 0.25 mA V IN = − 7V −0.2 V TH Differential Input Threshold Voltage −7V ≤ V CM ≤ + 12V −0.2 +0.2 V ∆V TH Input Hysteresis (V TH+− VTH−) V CM = 0 95 mV V OH CMOS High-level Output Voltage I OH = 4 mA, VID = −200 mV 3.5 V www.national.com 4 |
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