st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 180

• 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
10.6
180/371
Motor controller (MTC)
10.6.1
The ST7 motor controller (MTC) can be seen as a three-phase pulse width modulator
multiplexed on six output channels and a back electromotive force (BEMF) zero-crossing
detector for sensorless control of permanent magnet direct current (PM BLDC) brushless
motors.
The MTC is particularly suited to driving brushless motors (either induction or permanent
magnet types) and supports operating modes like:
Table 80.
Input detection block
Input pins
Sensorless mode
D event detection
Z event detection
Demagnetization (D) event
Z event generation (BEMF zero crossing)
Protection for ZH event detection
Position sensor mode
Sampling block
Commutation noise filter
Speed sensor mode
Tachogenerator mode
Encoder mode
Summary
Commutation step control with motor voltage regulation and current limitation
Commutation step control with motor current regulation, that is, direct torque control
Position sensor or sensorless motor phase commutation control (six-step mode)
BEMF zero-crossing detection with high sensitivity. The integrated phase voltage
comparator is directly referred to the full BEMF voltage without any attenuation. A
BEMF voltage down to 200mV can be detected, providing high noise immunity and
self-commutated operation in a large speed range.
Realtime motor winding demagnetization detection for fine-tuning the phase voltage
masking time to be applied before BEMF monitoring.
Automatic and programmable delay between BEMF zero-crossing detection and motor
phase commutation.
PWM generation for three-phase sinewave or three-channel independent PWM
signals.
Introduction
MTC functional blocks
ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
Section
Page
189
189
192
193
195
197
200
201
202
203
206
208
209
210
211