Datasheet

TMCC160 motionCookie™ (Rev. 1.00 / 2015-Nov-16)
© 2015 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
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The power losses which are generated in the sense resistor can be calculated
with formula below.


= 
_

 

= 
_
/

2

 

Formulae 2: Direct Coil Current Sense Resistor Losses
4.5.5 Current Amplifier
Current Amplifier
COMPONENT DESCRIPTION VENDOR Series
AD8418
ANALOG
DEVICES
AD8206
ANALOG
DEVICES
The single shunt measurement uses only one resistor in the bottom GND
connection of the power MOSFET bridge. TMCC160 supports a high speed, high
bandwidth, and low offset current sense amplifier with configurable input range
for signal conditioning.
NOTE:
→ Single shunt measurement is only possible for block hall (six step mode)
commutation.
4.5.4
Calculating
Power
Losses
4.5.6
Single Shunt
Measurement
C1
C2
C3 C4
C5
C6
HS1 HS2 HS3
LS1 LS2 LS3
VM
BM3
BM2
BM1
R
W
BLDC
V
U
100Ω
100Ω
100pF
100pF
RS+
RS-
Figure 11: Single Shunt Measurement Schematic