NXP Semiconductors Freedom FRDM-KV11Z, Руководство пользователя, Страница: 4 / 20

FRDM-KV11Z Hardware Description
FRDM-KV11Z Evaluation Board Users Guide
4 NXP Semiconductors
Figure 2. FRDM-KV11 callout
3. FRDM-KV11Z Hardware Description
Power supply
There are multiple power supply options on the FRDM-KV11Z. It can be powered from either of the
USB connectors, the VIN pin on the J3 header, the DC Jack (not populated), or an off-board 1.71 V–3.6
V supply from the 3.3 V pin on the J14 header. The USB OpenSDA and the DC jack are regulated
onboard using a 3.3 V DC-to-DC linear regulator to produce the main power supply. The voltage of the
J14 and J3 header inputs are not regulated and will provide direct power-supply to the KV11Z
microcontroller.
When attached to either the FRDM-MC-LVBLDC or the FRDM-MC-LVPMSM 3.3 V voltage is
supplied from the motor control power board through the J3 header. The table below provides the
operational details and requirements for the power supplies.