User Manual

TMCM-3214, TMCM-3215 Hardware Manual (V0.91 / 2017-MAR-01) 22
Copyright © 2016, 2017 TRINAMIC Motion Control GmbH & Co. KG
5.8 General purpose outputs OUT0..3
The TMCM-3214 and TMCM-3215 offer 4 open-drain (N-channel MOSFET) general purpose outputs available at the
output connector of the interface brick part. The internal connection of the N-channel MOSFETs together with a
flyback / freewheeling diode can be seen in figure 5.8. When activating the MOSFET the related output will be
pulled low (sometimes called npn-style switch).
+5V_OUT
microcontroller
GND
1
OUT0
5
4
8
OUT1
OUT2
OUT3
TMCM-3214 / TMCM-3215
Output OUT0..3 with internal circuit
of OUT0 as example
Figure 5.8: General purpose output – internal circuit (simplified)
Examples for connecting external circuits to the outputs:
15
4
8
470R
LED
OUT0
15
4
8
4k7
OUT0
15
4
8
OUT0
Relais
1
2 3
Figure 5.9. Connecting external circuits to the general purpose outputs
From left to right:
1. Simple digital output: high (+5V) / low
2. LED connected to output
3. Relay connected to output