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SM8131B00B 데이터시트(PDF) 10 Page - Nippon Precision Circuits Inc |
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SM8131B00B 데이터시트(HTML) 10 Page - Nippon Precision Circuits Inc |
10 / 21 page SM8131B NIPPON PRECISION CIRCUITS INC.—10 Switching to power-save mode The internal circuit operating mode switches from ×1.0/×1.5 mode to power-save mode when both EN1 and EN2 go LOW and do not switch HIGH for an interval of 1.63ms (max). This function turns the LEDs OFF and automatically transfers internal circuit control to power-save mode, suppressing current consumption. (1) If the EN signals are input after power is applied and the POR time has expired, the internal enable signal “CE” switches with the EN1 + EN2 signal. (2) If the internal enable signal “CE” goes from HIGH to LOW and are held for an interval greater than the “CE” hold time 1.63ms (max), the SM8131B switches to power-save mode. The internal circuits are reset on the “CE” falling edge, and the current setting must be re-established before restart. EN input signal and internal enable signal “CE” CE hold time 1.63ms (max) EN1 input EN2 input EN1+EN2 Internal enable (CE) Power save Power save 1.0 or 1.5 (1) (2) |
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