TinyLily Motor Board

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Drive a 1.8A DC Motor (Model ASL2001).

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When TI came out with the world’s smallest DC motor driver chip, we knew we had to build a board around it. Based around the 2mm x 2mm TI DRV8837 Motor Driver (H-Bridge) IC, this board is incredibly tiny at only 10mm in diameter, yet can drive a 5V 1.8Amp motor! The DRV8837 is extremely easy to use and interface to your favorite processor board (such as a TinyDuino, TinyLily or a standard Arduino), and uses a simple PWM to control motor speed, direction, coasting and braking. The board includes a bypass capacitors and all the I/O of the DRV8837 brought out to sewtabs, as well as heatsinking the chip to a large plane on the bottom side of the board to help with heat dissipation.

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.

Check this tutorial from TinyCircuits.


  • Washable
  • Eight Sewtabs – 1.2mm in diameter, easy to use with standard conductive thread and needles
  • Robust Gold Finish – makes soldering easy and is non-corrosive
  • Ultra compact size and weight
  • Dimensions: 10mm diameter (0.394 inches)
  • Max Height: 1.41mm (0.056 inches)
  • Ultra-thin 0.61mm (0.024 inches) PCB
  • TI DRV8837 H-bridge motor driver
  • Low MOSFET On-Resistance: HS + LS 280mOhm
  • 1.8A Max Drive Current
  • 1.8V to 11V Motor Operating Supply Voltage Range
  • Seperate Motor and Logic Power Supply Pins
  • PWM (IN/IN) Interface
  • Dedicated Sleep Pin

TI DRV8837 Motor Driver Datasheet

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