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2020-5-22
UG2020-11 REF-Vacuum-C101-2ED User Guide
3.1
REF- Vacuum -C101-2ED board specifications
Table 2 depicts the key specifications of the reference design REF-Vacuum-C101-2ED.
Table 2
REF-Vacuum-C101-2ED board specifications
Parameters
Values
Conditions / comments
Input
Voltage
18 - 30 V
rms
6S ~ 7S Li battery or 24VDC input
Input current
25 A
rms
Input 24 V
DC
, T
a
=25
C, BSC030N04NS with cooling fan
Output
Power (3 phases)
600 W
Input 24 VDC, f
PWM
=22 kHz, T
a
=25°C, T
mos
= 105 °C
Current per phase
22 A
rms
Input 24 VDC, f
PWM
=22 kHz, T
a
=25°C, T
mos
= 105 °C
DC bus voltage
Maximum DC bus voltage 30 V (max)
MOSFET BSC030N04NS’s V
(BR)DSS
is 40 V
Minimum DC bus voltage
10 V (min)
Need bypass ZD2, ZD3 and U1
2ED2304 undervoltage negative-going threshold 9 V
Switching frequency
Maximum inverter
switching frequency f
PWM
80 kHz (max)
IMC101T’s firmware max. time usage depends on
enabled function blocks and control rate setup
Minimum inverter
switching frequency f
PWM
6 kHz *
Depends on motor control performance and Wizard
calculation (motor poles and R & L)
IMC101T’s firmware scaling limit is 2 kHz
Current feedback
Inverter current sensing
resistor RS1
2 mΩ
Can adjust to 5~10 mΩ for lower current motor
application (with external OPA)
Or above 20 mΩ shunt resistor for directly ADC sample
(without external OPA)
Protections
Output current trip level
80 A
peak
1
Wizard setup for OC trigger level
Related to shunt resistor RS1 and OPA’s bias
Temperature trip level
105 °C (typ)
Needs to consider the temperature gap between MOS
and NTC sensor
On-board power supply
12 V
12 V ± 1 %, max. 100 mA Used for MOS gate driver and 3.3 V LDO
3.3 V
3.3 V ± 1 %, max. 100 mA Used for IMC controller and protection circuits
PCB characteristics
Material
FR4, 1.6 mm, 1oz PCB
2 layers
Dimension
60 mm × 115 mm
60 mm × 63.5 mm if cooling fan is removed
System environment
Ambient temperature
From 0 to 50 °C
Non-condensing, maximum RH of 95 %
1
For iMOTION™ IC IMC1xx, there are three types of Gatekill Input Source options in MCEWizard setup.
If select “comparator” mode, the external Gatekill signal will be not used, and the signal I_Shunt will be compared by the internal
comparator with the “Device Overcurrent trigger level setting” value set in MCEWizard.
