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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UCS1002-3 датащи(PDF) 33 Page - Microchip Technology |
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UCS1002-3 датащи(HTML) 33 Page - Microchip Technology |
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33 / 114 page  2023 Microchip Technology Inc. and its subsidiaries DS20006852A-page 33 UCS1002-3 area representing the USB 2.0 specified VBUS range is now restricted to an upper current limit of IBUS_R2MIN. Note that the UCS1002-3 will heat up along each load line as voltage decreases. If the internal temperature exceeds the TREG or TTSD thresholds, the port power switch will open. Also note that when the VBUS voltage is brought low enough (below VBUS_MIN), the port power switch will open. FIGURE 7-2: Constant Current Limiting (Variable Slope) Operation. 5 4 3 2 1 0.5 1.0 1.5 2.0 2.5 5.25 4.75 0 0 0.9 1.2 1.2 1.0 0.9 0.5 1.5 IBUS_R2MIN 1.8 1.8 2.0 2.5 IBUS (Amps) ILIM (Amps) = ILIM’s Constant resistance IBUS operation line 1 (ILIM = 0.5 A) Constant resistance IBUS operation line 5 (ILIM = 1.5 A*) CC Mode - Power switch current increases as voltage decreases when ILIM is exceeded following constant resistance lines *1.5 A limit reduced by -3.5% internally |
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