Instructions
88Hardware
© 2013 Conrad Electronic
Example connect Relay to P54
FET driver
The pins of the socket strip Y15 are connected to the open-drain FET driver. Hereby ohmic con-
sumers (max. 12VDC / 2A) can be controlled directly. The OUTPUT CTRL pins can be connected
directly to a port on the UNIT. It can also be used to control PWM signals. At pin header Y18 open-
drain outputs are ready for usage. These outputs are connected to the consumers - power supply
(+).
When switching inductive loads, a free-wheeling diode must be attached to the open-
drain outputs. The diode hast to be attached as close as possible to the the consumer.