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UCC5686PM Datasheet(PDF) 3 Page - Texas Instruments |
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UCC5686PM Datasheet(HTML) 3 Page - Texas Instruments |
3 / 7 page UCC5686, UCC5687 27-LINE 3V - 5V LVD TERMINATOR FOR WIDE ULTRA2, ULTRA3, ULTRA160, AND ULTRA320 SCSI WITH INTEGRATED SPI3 DELAY SLUS459B – OCTOBER 2000 – REVISED APRIL 2001 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, xTRMPWR = 2.7 V to 5.25 V, TA = 0_C to 70_C, DISCNCT1 = DISCNCT2 = 0 V for UCC5686, DISCNCT1 = DISCNCT2 = open for UCC5687, TA = TJ. (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT xTRMPWR Supply Current Section xTRMPWR supply current LVD mode 65 mA xTRMPWR supply current Disabled terminator 500 µA 1.25 V Regulator Section 1.25 V regulator 0.5 V ≤ VCM ≤ 2.0 V, See Note 1 1.15 1.25 1.35 V Regulator source current VREG = 0 V –300 –240 mA Regulator sink current VREG = 3.0 V 240 300 mA 1.3 V (DIFSENS) Regulator Section 1.3 V regulator –5mA ≤ IDIFSENS ≤ 50 µA 1.2 1.3 1.4 V Short-circuit source current VDIFSENS = 0 V –5 –8 –15 mA Short-circuit sinkcurrent VDIFSENS = 2.75 V 50 200 µA Differential Termination Section (Applies to each line pair 1–27) Differential bias voltage 100 125 mV Differential impedance 100 105 110 Ω Common-mode bias voltage L+ and L– shorted together 1.15 1.25 1.35 V Common-mode impedance L+ and L– shorted together, See Note 2 110 140 165 Ω Disconnected Termination Section Output leakage current 10 400 nA Output capacitance SE measurement to GND, See Note 3 3 pF Disconnect Control (DISCNCT1) or (DISNCNT2) and DIFFB Input Section DISCNCT threshold voltage 0.8 1.3 2.0 V DISCNCT input current VDISCNCT = 0 V and 2.0 V –30 –10 µA DIFFB SE to LVD threshold voltage 0.5 0.7 V DIFFB LVD to HPD threshold voltage 1.9 2.4 V DIFFB Input current 0 V ≤ VDIFFB ≤ 2.75 V –10 10 µA Low-Voltage Differential (LVD) Status Bit Section Source current VLOAD = 2.4 V –6 –4 mA Sink current VLOAD = 0.4 V 2 5 mA Time Delay/Filter Section Mode change delay (See Note 4) 100 190 300 ms Thermal Shutdown Section Thermal shutdown threshold For increasing temperature 140 155 170 _C Thermal shutdown hysteresis 10 _C NOTES: 1. VCM is applied to all L+ and L– lines simultaneously. 2. Z CM + 2.0 V * 0.5 V I VCM (max) * I VCM (max) , VCM(max) = 2.0 V, VCM(min) = 0.5 V 3. Ensured by design, not production tested. 4. A new mode change can begin any time after a previous mode change has been detected. |
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