IRMCF312_15 Datasheet, PDF (22/35 Pages) International Rectifier – Dual Channel Sensorless Motor Control IC

IRMCF312
7.5 SYNC to SVPWM and A/D Conversion AC Timing
SYNC
IU,IV,IW
AINx
PWMUx,PWMVx,PWMWx
t_wSYNC
t_dSYNC1
t_dSYNC2
t_dSYNC3
Unless specified, Ta = 25˚C.
Symbol
Parameter
t_wSYNC
t_dSYNC1
SYNC pulse width
SYNC to current
feedback conversion
time
t_dSYNC2
SYNC to AIN0-6
analog input
conversion time
t_dSYNC3
SYNC to PWM output
delay time
Table 13.
Min
Typ
Max
-
32
-
-
-
100
-
-
200
-
-
2
SYNC AC Characteristics
Unit
SYSCLK
SYSCLK
SYSCLK
(1)
SYSCLK
Note:
(1) AIN1 through AIN6 channels are converted once every 6 SYNC events
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