IRMCF312 International Rectifier, IRMCF312 Datasheet - Page 31

• Manufacturer Part Number: IRMCF312
• Description: Dual Channel Sensorless PM Motor Control IC
• Manufacturer: International Rectifier

Specifications of IRMCF312

• Motion Control Description: Dual Channel Sensorless PM Motor Control IC
• Package: QFP100
• Moisture Sensitivity Level: MSL3

Number
Pin
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
P2.4
P2.5
P2.6/
AOPWM0
P2.7/
AOPWM1
VDD2
VSS
VSS
VDD1
P4.0/INT3
P4.4/INT7
IFBF-
IFBF+
IFBFO
AIN0/VDCO
VDC+
VDC-
AVDD
AVSS
AIN1
CMEXT
AREF
IFBC-
IFBC+
IFBCO
DNC
AIN2
AIN3
AIN4
AIN5
Pin Name
Internal IC
/Pull-down
Pull-up
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
P
P
P
P
P
P
I
I
I
I
I
I
I
-
I
I
I
I
Unbuffered analog reference voltage output (0.6V)
Fan single shunt current sensing OP amp input (+)
Analog input channel 0 or DC bus voltage sensing
Analog input channel 1, 0-1.2V range, needs to be
Analog input channel 2, 0-1.2V range, needs to be
Analog input channel 2, 0-1.2V range, needs to be
Analog input channel 2, 0-1.2V range, needs to be
Analog input channel 2, 0-1.2V range, needs to be
Fan single shunt current sensing OP amp input (-)
Compressor single shunt current sensing OP amp
Compressor single shunt current sensing OP amp
Compressor single shunt current sensing OP amp
Fan single shunt current sensing OP amp output
Discrete programmable I/O or analog output 0
Discrete programmable I/O or analog output 1
DC bus voltage sensing OP amp input (+)
Discrete programmable I/O or Interrupt 3
Discrete programmable I/O or Interrupt 7
DC bus voltage sensing OP amp input (-)
Analog reference voltage output (0.6V)
pulled down to AVSS if unused
pulled down to AVSS if unused
pulled down to AVSS if unused
pulled down to AVSS if unused
pulled down to AVSS if unused
Discrete programmable I/O
Discrete programmable I/O
Analog power (1.8V)
3.3 V digital power
1.8V digital power
Analog common
Digital common
Digital common
Do not connect.
OP amp output
Description
input (+)
input (-)
(PWM)
(PWM)
output
IRMCF312
31