Hardware Description
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SLCU002 – September 2016
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Copyright © 2016, Texas Instruments Incorporated
BOOSTXL-ULN2003 Dual Stepper Motor Driver BoosterPack Hardware
Some LaunchPad boards have a 5-V supply pin, which is powered directly from the USB port. This supply
can be used to power peripherals, as shown in
Figure 13
, but there are some exceptions to when this can
be used (See the following NOTE). The 5-V stepper motor used in
Figure 13
below has the following Digi-
Key Part Number: 1528-1366-ND. A 12-V version of this stepper motor has the following Digi-Key Part
Number: 1528-1367-ND.
Figure 13. USB Powering a Single Motor (See NOTE)
NOTE:
When using the 5-V pin (USB Power) to provide power to an external peripheral, TI does not
recommend to exceed 250 mA, and further caution should be taken when powering
additional BoosterPacks. TI does not recommend to power more than one stepper motor
from this board when using the 5-V LaunchPad power pin.
