IC-SP-06027 R0
Table 4-3. List of pins and their functions (pins common to all models)
No.
4
Pin
DM
Item
Direction
of motor
rotation
detecting
pin
Applicable
models
ECN30204
ECN30206
Functions and Precautions
·
High or Low level output according to the
input signal of the HU, HV and HW.
·
Direction of motor rotation can be detected
by measuring output voltage.
·
Connect an external circuit such as a
pull-up resistor of around 5kW to 10kW to
VCC or CB pin.
·
Direction of motor rotation relates to the
DM output, as shown below ;
Direction of
motor rotation
U --> V --> W
U --> W --> V
<Continued>
Related items
DM output
L
H
VCC
DM
Equivalent Circuit
5
UT
VT
WT
UB
VB
WB
Control
input pin
of each
arm
ECN30611
ECN30601
ECN30603
ECN30604
·
Input control signals of each arm.
·
In each input, input the High level turns on
the output IGBT. The UT, VT, and WT
correspond to the top arm output IGBT.
·
The UB, VB, and WB corrrespond to the
bottom arm output IGBT.
·
The input voltage is 5V CMOS or TTL logic
level compatible.
·
If a noise is detected, install a resistor
and/or capacitor.
·
The maximum input voltage is VB+0.5V.
·
5-3. Power supply sequence
·
5-7. Dead time
Data sheet
·
4.2. Input Pins
note 1)
Input resistor value
UT
VT
WT
UB
VB
WB
VB
Input resistor
(note 1)
typ.
200kW
·
typ. 300W
ECN30611
ECN30603
ECN30604
·
typ. 150W
ECN30601
Equivalent Circuit
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12
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