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SN75179BPE4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN75179BPE4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 17 page SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DRIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK Input clamp voltage II = - 18 mA – 1.5 V VO Output voltage IO = 0 0 6 V VOD1 Differential output voltage IO = 0 1.5 6 V VOD2 Differential output voltage RL = 100 Ω, See Figure 1 1/2VOD1 or 2‡ V OD2 g RL = 54 Ω, See Figure 1 1.5 2.5 5 V VOD3 Differential output voltage See Note 4 1.5 5 V ∆VOD Change in magnitude of common-mode output voltage§ ±0.2 V VOC Common-mode output voltage RL = 54 Ω or 100 Ω, See Figure 1 3 –1 V ∆VOC Change in magnitude of common-mode output voltage§ ±0.2 V IO Output current VCC = 0, VO = – 7 V to 12 V ±100 µA IIH High-level input current VI = 2.4 V 20 µA IIL Low-level input current VI = 0.4 V – 200 µA IOS Short circuit output current VO = – 7 V – 250 mA IOS Short-circuit output current VO = VCC or 12 V 250 mA ICC Supply current (total package) No load 57 70 mA † All typical values are at VCC = 5 V and TA = 25°C. ‡ The minimum VOD2 with 100-Ω load is either 1/2 VOD2 or 2 V, whichever is greater. § ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input changes from a high level to a low level. NOTE 4: See TIA/EIA-485-A, Figure 3.5, Test Termination Measurement 2. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT td(OD) Differential output delay time RL =54 Ω See Figure 3 15 22 ns tt(OD) Differential output transition time RL = 54 Ω, See Figure 3 20 30 ns Symbol Equivalents DATA-SHEET PARAMETER TIA/EIA-422-B TIA/EIA-485-A VO Voa, Vob Voa, Vob |VOD1 | Vo Vo |VOD2 | Vt (RL = 100 Ω) Vt (RL = 54 Ω) |VOD3 | Vt (Test Termination Measurement 2) ∆|VOD| ||Vt |– |Vt || ||Vt |– |Vt || VOC |Vos | |Vos | ∆|VOC| |Vos –Vos | |Vos –Vos | IOS |Isa |, | Isb | IO |Ixa |, | Ixb | Iia , Iib |
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