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DS36C279TN Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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DS36C279TN Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 10 page Absolute Maximum Ratings (Note 3) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V CC) +12V Input Voltage (DE, RE*, & DI) −0.5V to (V CC +0.5V) Common Mode (V CM) Driver Output/Receiver Input ±15V Input Voltage (DO/RI, DO*/RI*) ±14V Receiver Output Voltage −0.5V to (V CC +0.5V) Maximum Package Power Dissipation @ +25˚C M Package 1190 mW, derate 9.5 mW/˚C above +25˚C N Package 744 mW, derate 6.0 mW/˚C above +25˚C Storage Temperature Range −65˚C to +150˚C Lead Temperature (Soldering 4 sec) +260˚C Recommended Operating Conditions Min Typ Max Units Supply Voltage (V CC) +4.75 +5.0 +5.25 V Bus Voltage −7 +12 V Operating Free Air Temperature (T A) DS36C279T −40 +25 +85 ˚C DS36C279 0 +25 +70 ˚C Electrical Characteristics (Notes 4, 5) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Reference Min Typ Max Units DIFFERENTIAL DRIVER CHARACTERISTICS V OD1 Differential Output Voltage I O = 0 mA (No Load) (422) (485) 1.5 5.0 V V OD0 Output Voltage I O = 0 mA 0 5.0 V V OD0* Output Voltage (Output to GND) 0 5.0 V V OD2 Differential Output Voltage R L =50Ω (422) Figure 1 2.0 2.8 V (Termination Load) R L =27Ω (485) 1.5 2.3 5.0 V ∆V OD2 Balance of V OD2 R L =27Ω or 50Ω (Note 6) −0.2 0.1 +0.2 V |V OD2 −VOD2*| (422, 485) V OD3 Differential Output Voltage R1 = 54 Ω,R2=375Ω Figure 2 1.5 2.0 5.0 V (Full Load) V TEST = −7V to +12V V OC Driver Common Mode R L =27Ω (485) Figure 1 0 3.0 V Output Voltage R L =50Ω (422) 0 3.0 V ∆V OC Balance of V OC R L =27Ω or (Note 6) −0.2 +0.2 V |V OC −VOC*|RL =50Ω (422, 485) I OSD Driver Output Short-Circuit V O = +12V (485) Figure 4 200 +250 mA Current V O = −7V (485) −190 −250 mA RECEIVER CHARACTERISTICS V TH Differential Input High Threshold Voltage V O =VOH,IO = −0.4 mA (Note 7) (422, 485) +0.035 +0.2 V −7V ≤ V CM ≤ +12V V TL Differential Input Low Threshold Voltage V O =VOL,IO = 0.4 mA −0.2 −0.035 V −7V ≤ V CM ≤ +12V V HST Hysteresis V CM = 0V (Note 8) 70 mV R IN Input Resistance −7V ≤ V CM ≤ +12V DS36C279T 24 68 k Ω DS36C279 48 68 k Ω I IN Line Input Current Other Input = 0V, DS36C279 V IN = +12V 0 0.19 0.25 mA (Note 9) DE = V IL,RE*=VIL,VIN = −7V 0 −0.1 −0.2 mA V CC = 4.75 to 5.25 DS36C279T V IN = +12V 0 0.19 0.5 mA or 0V V IN = −7V 0 −0.1 −0.4 mA I ING Line Input Current Glitch Other Input = 0V, DE=V IL,RE*=VIL, DS36C279 V IN = +12V 0 0.19 0.25 mA (Note 9) V IN = −7V 0 −0.1 −0.2 mA V CC = +3.0V or 0V, T A = 25˚C DS36C279T V IN = +12V 0 0.19 0.5 mA V IN = −7V 0 −0.1 −0.4 mA I B Input Balance Test RS = 500 Ω (422) (Note 12) ±400 mV V OH High Level Output Voltage I OH = −4 mA, VID = +0.2V RO Figure 11 3.5 4.6 V V OL Low Level Output Voltage I OL = +4 mA, VID = −0.2V 0.3 0.5 V www.national.com 2 |
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