Power Switch / Power Sequence Controller / Power-Saving ControllerDesigned by Upton's Gadgets, Ships from Taiwan
In the battery-powered devices, the power is limited and quite precious. When the device is in its standby mode or sometimes part of circuit isn't needed, we might switch-off the power in order to ...Read More…
In the battery-powered devices, the power is limited and quite precious. When the device is in its standby mode or sometimes part of circuit isn't needed, we might switch-off the power in order to eliminate the current continuously consumed. Like we do to disable a chip by pulling high on /CE (low-active chip enable) pin of the chip, to cut off the power source by a power-switch seems to be more comprehensive. Also, the power-switch is useful to generate the most correct power sequence on boot-up procedure by controlled the CTRL pin to switch ON or OFF the power source.
This is a two-channel power-switch with only one CTRL pin. When the CTRL pin is HIGH, the power switch is ON, and the two power outputs are applied with its input power source respectively. Conversely, when the CTRL pin is LOW, the power switch is OFF. There is one Green-LED equipped to show the state of CTRL pin.
This power-switch board is fit for the use on breadboard with two standard 2x5-2.54mm pin header. To make it easier to understand, here is one figure to list the definition of each pin and a table to show the operation condition.
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