APPLICATION CIRCUIT EXAMPLE
MITSUBISHI <CONTROL / DRIVER IC>
M56733AFP
3-PHASE BRUSHLESS MOTOR CONTROL
R7
R5
R8
C11
R9
C12
R10 C13
U
R6
R3
V
W
R4
C10
C9
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
M56733AFP
M56733AFP
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
R2
C3
R1
X1
C8
C1
VCC
FG
C2
C4
FG EN
Moni
C6
C5
C7
EN
MOD
X1=492kHz
(Oscillator)
<Constants>
R1=5.1kΩ
R2=510Ω
R3=47kΩ
R4=180kΩ
R5=1.2kΩ
R6=0.5Ω
R7=1.2kΩ
R8=4.7Ω
R9=4.7Ω
R10=4.7Ω
C1=33µF
C2=0.47µF
C3=10µF
C4=0.01µF
C5=165pF
C6=56pF
C7=165pF
C8=1µF
C9=0.01µF
C10=0.1µF
C11=0.1µF
C12=0.1µF
C13=0.1µF
Notes: 1. Sets items with when measures for such as oscillation require to be taken.
2. R1 is to be used for injection current boost. Set R1, if necessary.
3. Set R2 when gain adjustments are required.
4. Enable function
EN
EN
Lo
Hi
LO
DISABLE
DISABLE
Hi
ENABLE
DISABLE
5. Mode function
Mode pin
Lo (MOD ≤ 0.8V)
M (Open status)
Hi (MOD ≥ 2.6V)
FG synchronous frequency
fosc/1640Hz
fosc/820Hz
fosc/(4100/3) Hz