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TPS2480PW датащи(PDF) 46 Page - Texas Instruments |
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TPS2480PW датащи(HTML) 46 Page - Texas Instruments |
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46 / 60 page ![]() TPS2480 TPS2481 SLUS939B – APRIL 2010 – REVISED DECEMBER 2010 www.ti.com SADC: SADC Shunt ADC Resolution/Averaging Bits 3–6 These bits adjust the Shunt ADC resolution (9-, 10-, 11-, or 12-bit) or set the number of samples used when averaging results for the Shunt Voltage Register (01h). BADC (Bus) and SADC (Shunt) ADC resolution/averaging and conversion time settings are shown in Table 6. Table 6. ADC Settings(1) ADC4 ADC3 ADC2 ADC1 MODE/SAMPLES CONVERSION TIME 0 X(2) 0 0 9-bit 84 ms 0 X(2) 0 1 10-bit 148 ms 0 X(2) 1 0 11-bit 276 ms 0 X(2) 1 1 12-bit 532 ms 1 0 0 0 12-bit 532 ms 1 0 0 1 2 1.06 ms 1 0 1 0 4 2.13 ms 1 0 1 1 8 4.26 ms 1 1 0 0 16 8.51 ms 1 1 0 1 32 17.02 ms 1 1 1 0 64 34.05 ms 1 1 1 1 128 68.10 ms (1) Shaded values are default. (2) X = Don't care. MODE: Operating Mode Bits 0–2 Selects continuous, triggered, or power-down mode of operation. These bits default to continuous shunt and bus measurement mode. The mode settings are shown in Table 7. Table 7. Mode Settings(1) MODE3 MODE2 MODE1 MODE 0 0 0 Power-down 0 0 1 Shunt voltage, triggered 0 1 0 Bus voltage, triggered 0 1 1 Shunt and bus, triggered 1 0 0 ADC off (disabled) 1 0 1 Shunt voltage, continuous 1 1 0 Bus voltage, continuous 1 1 1 Shunt and bus, continuous (1) Shaded values are default. 46 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): TPS2480 TPS2481 |
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