Motor Drive Circuit - Renesas RAA306012 User Manual

RAA306012 RSSK User's Manual
4.3

Motor Drive Circuit

The Evaluation Board has MOSFETs, shunt resistors, and a thermistor for the MOSFET as a motor drive
circuit. Also, it is possible to connect the external MOSFET board to CN_EXT_MOS (external MOSFET
connector). In order to switch the motor drive circuit, it is necessary to change the mount setting of 0[Ω]
resistors. Table 4-1 shows the mount setting of 0[Ω] resistors to switch the motor drive circuit and the
information of CN_EXT_MOS connector.
Table 4-1 The Motor Drive Function According to The Mount Setting of 0[Ω] Resistors
Function Selection
Phase current
sense
Thermistor for
MOSFET
Note.1
MOSFET
Note.1: The MOSFET temperature measurement function by the thermistor is not supported by the sample program. When using the
thermistor, please change the program by user.
ote.2: Even if the MOSFETs on the Evaluation Board are selected, the connection of the MOSFET pin of CN_EXT_MOS is valid.
DO NOT connect external MOSFETs to the CN_EXT_MOS connector on this mou
：Short (0[Ω] resistor or solder)
0
： Mounted resistor
： Mounted capacitor
Figure 4-4 Motor Drive Circuit Function Selection Resistors (Factory Default)
R12UZ0128EJ0100 Rev.1.00
Nov 1, 2023
Mount Setting
R161~R166 mount (default setting)
R161~R166 unmount
R150 mount, R152 unmount, R175 mount
(default setting)
R150 unmount, R152 mount, R175 mount
R150 unmount, R152 mount, R175
unmount
R79~R87 mount, R88~R96 unmount
(default setting)
R79~R87 unmount, R88~R96 mount
R88 R79
R96 R87
0
0
0
0
0
0
0
0
0
R162
0
R161
0
R164
0
R163
0
R166
0
R165
0
Shunt resistors (SR1, SR2, SR3)
on the Evaluation Board are selected.
CN_EXT_MOS Shunt resistors
(UIP, UIN, VIP, VIN, WIP, WIN) are
selected.
Thermistor on the Evaluation Board is
unselected.
(IW current sense is selected.)
Thermistor on the Evaluation Board is
selected.
CN_EXT_MOS terminal (TH) is
selected.
MOSFETs on the Evaluation Board
are selected.
External MOSFETs are selected
(MOSFETs on the Evaluation Board
are unselected.)
R175
C106
0
R152
4. Peripheral Circuits
Function
Note.2
R150
R126
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