UM0622
Getting started
Doc ID 15260 Rev 1
5/28
1.4.1 Power
supply
The demonstration board can be powered from a mini B USB connector (bus powered), or a
3.7 V Li-Ion battery inserted into the battery holder connected at the back of the board. The
supply is selected through resistor R77 or R78.
●
R77: mounted at a zero ohm value to select the battery supply. The board runs using
the power supply from a battery connected to the connections at J6. The on-board
circuit has the capability to charge the rechargeable battery. R78 must be removed
(open circuit) before mounting R77.
●
R78: mounted at a zero ohm value to select the USB supply. The board runs using the
USB power supply. R77 must be removed (open circuit) before mounting R78.
Note:
To operate in battery mode, you can use any 3.7 V, 600 mAh Li-Ion battery. The mechanical
dimensions of the battery intended for this board are 32 mm x 38 mm x 6 mm (similar to
Nokia BL-5X batteries).
www.BDTIC.com/ST
