The TI DRV8837 has one H-bridge driver consisting of N-channel power MOSFETs to drive a DC motor or one winding of a stepper motor, or other devices like solenoids. An internal charge pump generates needed gate-drive voltages. There are internal shutdown functions for overcurrent protection, short-circuit protection, undervoltage lockout and over temperature. The DRV8837 can supply up to 1.8 A of output current. It operates on a motor power-supply voltage from 1.8 V to 11 V, and a device power-supply voltage of 1.8 V to 7 V. There is also a extremely low power sleep mode with 120nA sleep current.
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This project uses designs and concepts developed as part of the Arduino project and the LilyPad project. The TinyCircuits design files themselves (schematics, PCB and libraries) are not directly derived from these works' design files and have been created new, however the concepts and basic architecture behind the TinyDuino and TinyLily products are derived and we thank the hard work of the organizations below for their contributions to open-source hardware:
Original Arduino Uno Design by Team Arduino
LilyPad Arduino Design by Leah Buechley and Sparkfun Electronics
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