Power
Demonstration Board for Freescale MCF5211, Rev. 1
Freescale Semiconductor
9
7.1
Power Input
7.1.1
Power (PWR) Jack
The PWR power jack, shown in
, consists of a 2.1 mm, center-positive, barrel connector. Voltage
applied at this connector should range b5 V and +20 V.
Figure 3. PWR Jack
7.1.2
Terminal (BATT) Block
The BATT terminal block, shown in
, is a 3.5 mm, screw-type terminal block connected directly
to the VDD voltage rail. Caution must be used when using this input since input protection is not applied.
Use of this input requires a reg3.3 V voltage source.
Figure 4. BATT Terminal Block
7.1.3
Connector J1
See the schematic for details on using this connection to supply power to the board or source power from
the board. Use of this input requires a reg3.3 V voltage source.
CAUTION
Do not overdrive the J1 or BATT inputs as damage to the board may result.
7.2
VDD LED
The VDD LED indicates the state of power applied to the development board. This LED is on when power
is applied to the board. If no power is applied or the OFF/ON switch is in the OFF position, this LED be
off. The VDD LED is located after the OFF/ON switch and will indicate the state of the switch if the board
is powered from the on-board regulator, the USB circuit, or the BATT terminal block input.
2.0 mm–2.1 mm, center-positive, +V input
Applied voltage: +5 V – +20 V
PWR
Accepts wire size 28 AWG – 16 AWG
Applied voltage must be +3.3 V.
BA
T
T
-
+
