Infineon REF-AIRCON-C302A-IM564, Руководство пользователя

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User guide 8 of 45 V 1.0.1
2021-01-27
REF-AIRCON-C302A-IM564 user guide
Air conditioner application reference design kits
The board at a glance
Parameter Symbol Conditions / comments Value Unit
Current feedback
PFC shunt resistance RS1 5 W shunt resistor with external OPA gain 14.7 15 mΩ
Motor shunt resistance RS2 Direct AD sample (without external OPA) 20 mΩ
Protections
Motor current protection
trigger level 1 MtrI
trip1
Wizard setup for OC trigger level, related to AD
range, shunt resistor RS2 and pull-up bias 16
1
A
peak
Motor current protection
trigger level 2 MtrI
trip2
Hardware comparator overcurrent protection,
related to RS2 and IM564’s Itrip threshold 26.2 A
peak
PFC current protection
trigger level 1 PFCI
trip1
IMC302A’s internal comparator for cycle-by-cycle
OCP, trip level can be adjusted by R50 & R55
20 2 A
peak
PFC current protection
trigger level 2 PFCI
trip2
PFC driver local protection for 1ED44175 driver,
trip level can be adjusted by RS1, R66 & R71
33.3 A
peak
Thermal protection level T
protection
Temperature gap between junction and NTC
sensor needs to be considered 90 °C
Auxiliary power supply 1 – 15 V
Output voltage V
out1
Used for IPM driver 15 ± 2% V
Maximum output current I
out1
150 mA
Auxiliary power supply 2 – 12 V
Output voltage V
out2
Used for relay control 12 ± 10% V
Maximum output current I
out2
300 mA
Auxiliary power supply 3 – 5 V
Output voltage V
out2
Used for IMC controller and protection circuits 5 ± 1% V
Maximum output current I
out2
200 mA
PCB characteristics
Dimension Length × width × height 250×157
×65
mm
Material FR4, 1.6 mm thickness, 1 oz. PCB
System environment
Ambient temperature
T
a
Non-condensing, maximum RH of 95% 0 ~ 50 °C
1
For iMOTION™ IC IMCxxx, there are three types of Gatekill input source options in MCEWizard setup: Gatekill-pin, Comparator and
both. If you select “comparator” mode, the external Gatekill signal will not be used, and the IFB will be compared by the internal
comparator with the “Device overcurrent trigger level setting” value set in MCEWizard.
2 For iMOTION™ IC IMC302 PFC overcurrent protection, there are two options in MCEWizard setup.
If you select “Enable cycle by cycle” mode, the PWM output immediately goes to logic LOW when the inductor current exceeds the
pre-determined OCP threshold, and re-starts at following PWM cycle.
For “Disable” mode, PFC state machine would shift from RUN state to FAULT state when inductor current exceeds the pre-
determined OCP threshold for a duration specified by parameter “PFC_GateKillTime”, only Fault_clear command can make it back
to STOP/RUN mode, which means latch–off OCP.