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DS36C280 Datasheet(PDF) 3 Page - Texas Instruments |
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DS36C280 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 16 page DS36C280 www.ti.com SNLS097C – JULY 2000 – REVISED FEBRUARY 2013 Electrical Characteristics (1) (2) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Reference Min Typ Max Units DIFFERENTIAL DRIVER CHARACTERISTICS VOD1 Differential Output Voltage IO = 0 mA (No Load) 1.5 5.0 V (422) VOD0 Output Voltage IO = 0 mA 0 5.0 V (485) VOD0* Output Voltage (Output to GND) 0 5.0 V VOD2 Differential Output Voltage RL = 50Ω (422) Figure 2 2.0 2.8 V (Termination Load) RL = 27Ω (485) 1.5 2.3 5.0 V ΔVOD2 Balance of VOD2 RL = 27Ω or 50Ω (3) −0.2 0.1 +0.2 V |VOD2 − VOD2*| (422, 485) VOD3 Differential Output Voltage R1 = 54 Ω, R2 = 375Ω Figure 3 1.5 2.0 5.0 V (Full Load) VTEST = −7V to +12V VOC Driver Common Mode RL = 27Ω (485) Figure 2 0 3.0 V Output Voltage RL = 50Ω (422) 0 3.0 V ΔVOC Balance of VOC RL = 27Ω or (3) −0.2 +0.2 V |VOC − VOC*| RL = 50Ω (422, 485) IOSD Driver Output Short-Circuit VO = +12V (485) 200 +250 mA Current VO = −7V (485) −190 −250 mA RECEIVER CHARACTERISTICS VTH Differential Input High VO = VOH, IO = −0.4 mA +0.035 +0.2 V Threshold Voltage −7V ≤ VCM ≤ +12V (4) (422, 485) VTL Differential Input Low VO = VOL, IO = 0.4 mA −0.2 −0.035 V Threshold Voltage −7V ≤ VCM ≤ +12V VHST Hysteresis(5) VCM = 0V 70 mV RIN Input Resistance −7V ≤ VCM ≤ +12V DS36C280T 24 68 k Ω RIN Input Resistance −7V ≤ VCM ≤ +12V DS36C280 48 68 k Ω IIN Line Input Current Other Input = 0V DS36C280 VIN = +12V 0 0.19 0.25 mA (6) DE = VIL, RE* = VIL VIN = −7V 0 −0.1 −0.2 mA VCC = 4.75 to 5.25 DS36C280T VIN = +12V 0 0.19 0.5 mA or 0V VIN = −7V 0 −0.1 −0.4 mA IING Line Input Current Other Input = 0V DS36C280 VIN = +12V 0 0.19 0.25 mA Glitch (6) DE = VIL, RE* = VIL VIN = −7V 0 −0.1 −0.2 mA VCC = +3.0V DS36C280T VIN = +12V 0 0.19 0.5 mA or 0V TA = 25°C VIN = −7V 0 −0.1 −0.4 mA IB Input Balance Test RS = 500 Ω (422) (7) ±400 mV VOH High Level Output Voltage IOH = −4 mA, VID = +0.2V RO 3.5 4.6 V Figure 12 VOL Low Level Output Voltage IOL = +4 mA, VID = −0.2V 0.3 0.5 V IOSR Short Circuit Current VO = GND RO 7 35 85 mA IOZR TRI-STATE Leakage Current VO = 0.4V to 2.4V ±1 μA DEVICE CHARACTERISTICS (1) Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except VOD1 and VOD2. (2) All typicals are given for: VCC = +5.0V, TA = + 25°C. (3) Delta |VOD2| and Delta |VOC| are changes in magnitude of VOD2 and VOC, respectively, that occur when input changes state. (4) Threshold parameter limits specified as an algebraic value rather than by magnitude. (5) Hysteresis defined as VHST = VTH − VTL. (6) IIN includes the receiver input current and driver TRI-STATE leakage current. (7) For complete details of test, see RS-485. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: DS36C280 |
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