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XRT4500CV 데이터시트(PDF) 32 Page - Exar Corporation |
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XRT4500CV 데이터시트(HTML) 32 Page - Exar Corporation |
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32 / 99 page ![]() áç áç áç áç XRT4500 MULTIPROTOCOL SERIAL NETWORK INTERFACE IC REV. 1.0.7 29 POWER SUPPLY CONSUMPTION When external power supplies are available, the switching regulator and charge pumps may be dis- abled to save on component cost and current con- sumption from the +5V supply. The table below shows the typical currents the +5V, +12V and -6V supplies require for each of the interface modes. The following two charts show how the IDD current varies with temperature and voltage when only a sin- gle 5V supply is used in the EIA-530 (V.11) mode. This mode has the highest current consumption. IDD IPP ISS MODE INTERFACE/CONDITIONS SUPPLY +5V +12V -6V UNIT M2 M1 M0 27 17 40 mA 0 0 0 V.10, No Load, No Signal 75 17 -160 mA 0 0 0 V.10, Full Load with Signal 27 15 -35 mA 0 0 1 EIA-530A, No Load (V.11) 230 15 -130 mA 0 0 1 EIA-530A, Full Load (V.11) 27 15 -35 mA 0 1 0 EIA-530 (V.36) No Load 27 15 -35 mA 0 1 1 X.21 65 15 -70 mA 1 0 0 V.35, No Load on V.28 drivers 68 45 -120 mA 1 0 0 V.35, Full Load on V.28 drivers 27 15 -35 mA 1 0 1 Reserved 20 30 -45 mA 1 1 0 RS-232, No Load 26 65 -55 mA 1 1 0 RS-232, Full Load FIGURE 1. SUPPLY CURRENT VERSUS TEMPERATURE AND SUPPLY VOLTAGE, WITHOUT LOAD OR SIGNAL IN EIA-530 (V.11) MODE Supply Current, No Signal, No Load, All CH 140 142 144 146 148 150 152 154 - 20 0 2550 7085 Temperature ( C) 4.75V 5.00V 5.25V |
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