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SC623AEVB датащи(PDF) 17 Page - Semtech Corporation |
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SC623AEVB датащи(HTML) 17 Page - Semtech Corporation |
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17 / 21 page ![]() SC623A 17 FL[2:0] These bits are used to set the current for the flash current sink when configured for flash or spotlight by the FL/SPLB bit. Bits FL[2:0] set the flash or spotlight current, as shown in Table 2. Table 2 — Flash/Spotlight Control Bits FL_2 FL_1 FL_0 FL/ SPLB Flash/Spotlight Current (mA) 0 0 0 0 OFF 00 1 0 50 0 1 0 0 100 0 1 1 0 150 1 0 0 0 200 1 0 1 0 250 1 1 0 0 250 1 1 1 0 250 0 0 0 1 OFF 0 0 1 1 300(1) 0 1 0 1 350(1) 0 1 1 1 400(1) 1 0 0 1 400(1) 1 0 1 1 400(1) 1 1 0 1 400(1) 1 1 1 1 400(1) Note: (1) When on continuously, the device may reach the temperature limit with 300mA and higher. FL/SPLB This bit is used to select either the flash or spotlight current ranges. If this bit is set, the FL current sink can be used to drive a flash of maximum duration 500ms and the current range will be the high (flash) current range. If this bit is cleared, the FL current sink can be used to drive a continuous spotlight at a lower current and the current range will be the lower (spotlight) current range, as shown in Table 2. Register and Bit Definitions (continued) |
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