Datasheet

TMCC160 motionCookie™ (Rev. 1.00 / 2015-Nov-16)
© 2015 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
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→ Keep a safety margin for the current control of about 10% in order to avoid
reaching the internal TMCC160 ADC limits. This margin shall be respected
for the current limit setting.
Safety Margin
Safety Margin
4095
0
2048
TMCC160
ADC Value
I
_U, I_V Input Voltage
0V
Vcc/2
(1.65V)
Vcc
(3.3V)
Motor Current U, V
0A
+
I
target_peak
3890
205
-I
target_peak
Figure 10: Direct Coil Current Signal Example
Use formula below to calculate the sense resistors for direct coil current
measurement.


=
1.48




=
1.48


2
 


(
 =   
)
G=20 (AD8418)
Formulae 1: Direct Coil Current Sense Resistor Calculation
TMCC160 Direct Coil Current Signal Example
4.5.3
Sense Resistor
Selection