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SN65HVD1786DR Datasheet(PDF) 4 Page - Texas Instruments |
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SN65HVD1786DR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 19 page SN65HVD1785, SN65HVD1786 SN65HVD1787, SN65HVD1791 SN65HVD1792, SN65HVD1793 SLLS872H – JANUARY 2008 – REVISED FEBRUARY 2010 www.ti.com ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RS-485 with TA ≤ 85°C 1.5 common-mode load, VCC > 4.75 V, see TA ≤ 105°C 1.4 |VOD| Driver differential output voltage magnitude V Figure 1 RL = 54 Ω, 4.75 V ≤ VCC ≤ 5.25 V 1.5 2 RL = 100 Ω, 4.75 V ≤ VCC ≤ 5.25 V 2 2.5 Change in magnitude of driver differential output Δ|VOD| RL = 54 Ω –0.2 0 0.2 V voltage VOC(SS) Steady-state common-mode output voltage 1 VCC/2 3 V Change in differential driver output ΔVOC –100 0 100 mV common-mode voltage Peak-to-peak driver common-mode output Center of two 27- Ω load resistors, See VOC(PP) 500 mV voltage Figure 2 COD Differential output capacitance 23 pF Positive-going receiver differential input voltage VIT+ –100 –10 mV threshold Negative-going receiver differential input VIT– VCM = –20 V to 25 V –200 –150 mV voltage threshold Receiver differential input voltage threshold VHYS 30 50 mV hysteresis (VIT+ – VIT–) VCC IOH = –8 mA 2.4 – 0.3 VOH Receiver high-level output voltage V IOH = –400 mA 4 TA ≤ 85°C 0.2 0.4 VOL Receiver low-level output voltage IOL = 8 mA V TA ≤ 105°C 0.2 0.5 Driver input, driver enable, and receiver enable II –100 100 mA input current IOZ Receiver output high-impedance current VO = 0 V or VCC, RE at VCC –1 1 mA IOS Driver short-circuit output current –250 250 mA VI = 12 V 75 125 85, 86, 91, 92 VI = –7 V –100 –40 VCC = 4.5 to 5.5 V or II Bus input current (disabled driver) mA VCC = 0 V, DE at 0 V VI = 12 V 500 87, 93 VI = –7 V –400 DE = VCC, Driver and receiver RE = GND, 4 6 enabled no load DE = VCC, Driver enabled, RE = VCC, 3 5 mA receiver disabled no load ICC Supply current (quiescent) DE = GND, Driver disabled, RE = GND, 2 4 receiver enabled no load DE = GND, Driver and receiver D = open 0.5 5 mA disabled RE = VCC, no load Supply current (dynamic) See TYPICAL CHARACTERISTICS section 4 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated Product Folder Link(s): SN65HVD1785, SN65HVD1786 SN65HVD1787, SN65HVD1791 SN65HVD1792, SN65HVD1793 |
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