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SN65LBC179DRG4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN65LBC179DRG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 19 page SN75LBC179, SN65LBC179, SN65LBC179Q LOW POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS SLLS173F − JANUARY 1994 − REVISED APRIL 2006 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DRIVER SECTION electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK Input clamp voltage II = − 18 mA − 1.5 V RL = 54 Ω, See Figure 1 SN65LBC179, SN65LBC179Q 1.1 2.2 5 |VOD | Differential output voltage (see Note 3) L See Figure 1 SN75LBC179 1.5 2.2 5 V |VOD | Differential output voltage (see Note 3) RL = 60 Ω, See Figure 2 SN65LBC179, SN65LBC179Q 1.1 2.2 5 V L See Figure 2 SN75LBC179 1.5 2.2 5 ∆|VOD| Change in magnitude of differential output voltage (see Note 4) See Figures 1 and 2 ±0.2 V VOC Common-mode output voltage 1 2.5 3 V ∆|VOC| Change in magnitude of common-mode output voltage (see Note 4) RL = 54 Ω, See Figure 1 ±0.2 V IO Output current with power off VCC = 0, VO = − 7 V to 12 V ±100 µA IIH High-level input current VI = 2.4 V − 100 µA IIL Low-level input current VI = 0.4 V − 100 µA IOS Short-circuit output current − 7 V ≤ VO ≤ 12 V ±250 mA ICC Supply current No load SN65LBC179, SN75LBC179 4.2 5 mA ICC Supply current No load SN65LBC179Q 4.2 7 mA † All typical values are at VCC = 5 V and TA = 25°C. NOTES: 3. The minimum VOD specification of the SN65179 may not fully comply with ANSI RS-485 at operating temperatures below 0°C. System designers should take the possibly lower output signal into account in determining the maximum signal transmission distance. 4. ∆|VOD| and ∆|VOC| are the changes in the steady-state magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS MIN MAX UNIT td(OD) Differential-output delay time RL = 54 Ω See Figure 3 7 18 ns tt(OD) Differential transition time RL = 54 Ω, See Figure 3 5 20 ns |
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