LS3 12V Level Shifter and Buffer 2×6 Channel

The LS3 level shifter converter is a variant of the LS2 level shifter to provide level shifting in both directions instead of the single direction of the LS2.   The LS3 allows a 3.3V or 5V microprocessor such as an Arduino to drive up to six 12V to 15V signals. It also levels shifts six 12V signals down to the voltage of the microcontroller.  This level converter has two supply voltages, a high supply and a low supply.  The left hand side of the module has the low voltage pins and the right hand side has the high voltage pins.

Bread board friendly! The LS3 has pins on a 0.1″ pitch and the rows are 0.6″ apart, just like wide DIP IC’s. Each LS3 has 28 pins and can fit in a standard 28 pin wide dip socket. . Can be used with normal serial, SPI and any other digital signals. The LS3 is designed for converting digital signals and does not work with analog signals. The inputs have 500k resitors to ground and unused inputs may be left unconnected. When the input is not driven high the corresponding ouput pin will be low. The output swings close to ground and close to the output voltage level.

The level shifter is very easy to use. The board must be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (12V for example) to the ‘Vo’ pin, low voltage (3.3V for example) to ‘Vi’, and ground from the system to the ‘GND’ pins. Pins are labeled as InLo1..InLo6 and OLo1..OLo6. A digital one going to the InLo1 pin on the lnput (3.3V) side will show up on the OHi1 pin on the Output (12V) side as 12V. The input voltage may be any voltage from 3.3V to 18V and the ouptut voltage may be any voltage from 3.3V to 18V.  The signal on the InHi1..InHi6 pins will be levels shifted down to OLo1..OLo6 pins.  Unused pins will be pulled low. As an added advantage the LS3 contains two 100nF capacitors to decouple the Vin and Vo power supplies.

To prevent breakage and to save on shipping costs the pins will not be soldered to the PCB.The pins are round, machine pins and are gold plated.  Square pins can be supplied on request.

Made in the USA..