UM0682

Power supply

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1

Power supply

The STEVAL-TLL005V1 can be powered either by a mobile Li-Ion battery (battery mode), or

an external 5 V DC power supply (external power supply mode).

1.1

Battery mode

To power the STEVAL-TLL005V1 by battery, perform the following steps:

●

Connect the battery across header H5

●

Position the jumper across pins 2-3 of J2 (as shown in Figure 2)

When the STEVAL-TLL005V1 is connected to the PC via USB, the battery begins charging

automatically with a current of approximately 200 mA. The battery used in testing the

system is a NOKIA BL-5B.

1.2

External power supply mode

If using an external 5 V DC power supply to power the demonstration board, perform the

following steps:

●

Connect the external DC power supply across header H4

●

Position the jumper across pins 1-2 of J2 (as shown in Figure 3)

Figure 2.

J2 connect details for battery mode

AM01304v1