st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 252

• Manufacturer Part Number: st7pmc2s6
• Description: 8-bit Mcu For Automotive With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, 5 Timers, Spi, Linsci?
• Manufacturer: STMicroelectronics

On-chip peripherals
Figure 117. Complementary PWM signals with chopping frequency on high and low side drivers
10.6.10
The PWM generator block produces three independent PWM signals based on a single carrier frequency
with individually adjustable duty cycles.
Depending on the motor driving method, one or three of these signals may be redirected to the other
functional blocks of the motor control peripheral, using the PCN bit in the MDTG register.
When driving PM BLDC motors in six-step mode (voltage mode only, either sensored or sensorless) a
single PWM signal (phase U) is used to supply the input stage, PWM and channel manager blocks
according to the selected modes.
For other kind of motors requiring independent PWM control for each of the three phases, all PWM
signals (phases U, V and W) are directed to the channel manager, in which deadtime or a high frequency
carrier may be added. This is the case of AC induction motors or PMAC motors for instance, supplied
with 120° shifted sinewaves in voltage mode.
Main features
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Reference input signal
Output A
Output B
12-bit PWM free-running up/down counter with up to 16 MHz input clock (F
Edge-aligned and center-aligned PWM operating modes
Possibility to reload compare registers twice per PWM period in center-aligned mode
Full-scale PWM generation
PWM update interrupt generation
8-bit repetition counter
8-bit PWM mode
Timer resynchronization feature
PWM generator block
ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
Delay
Delay
mtc
)
5V
0V
5V
0V
5V
0V