Datasheet

TMCC160 motionCookie™ (Rev. 1.00 / 2015-Nov-16)
© 2015 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
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4.2 DC/DC Converter (3.3V)
The 3.3V digital supply is generated with an internal step down switch regulator from VM. The
step down converter works with a PWM frequency of 2.2MHz and supports a maximum output
current of 500mA. A collection of external components like coils and diodes are listed below.
Equivalent components can be used. The 3.3V can also be used to supply further external
components like current-, hall sensors etc. if the consumption does not exceed 400mA.
NOTE:
→ Place D1, L1, C1-C2 close to the TMCC160 pins SW, DA and VCC
D
1
L1
C
1 C
2
3.3V
TMCC160
SW
DA VCC
DC/DC
Figure 6: DC/DC Converter Example Schematic