Three Function Programmable Constant Current Source XT2101 ■ General Description XT2101 is a programmable constant current source, through an external resistor to set the output current.
XT2101's internal control circuit that can achieve full current, 1 / 4 current and burst flash three functions, three functions controlled by external switch cycle occurs.
XT2101 built-in short circuit protection, when IOUT and VDD form a short circuit, the chip will automatically adjust the output current to 25mA, to ensure that the chip is not damaged.
Meanwhile Chip built-in linear temperature protection, as the temperature rises, automatically reduce the output current to ensure that loss does not exce...

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