ST7FMC2R6T6 STMicroelectronics, ST7FMC2R6T6 Datasheet - Page 138

• Manufacturer Part Number: ST7FMC2R6T6
• Description: MCU 8BIT 32K FLASH 64TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FMC2R6T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LINSCI, SPI
• Peripherals: LVD, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Processor Series: ST7FMC2x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7MC-KIT/BLDC, ST7MDT50-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• For Use With: 497-8402 - BOARD EVAL COMPLETE INVERTER497-8400 - KIT IGBT PWR MODULE CTRL ST7MC497-6408 - BOARD EVAL BLDC SENSORLESS MOTOR497-4734 - EVAL KIT 3KW POWER DRIVER BOARD497-4733 - EVAL KIT 1KW POWER DRIVER BOARD497-4732 - EVAL KIT 300W POWER DRIVER BOARD497-4731 - EVAL KIT PWR DRIVER CONTROL BRD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-4868

ST7MC1xx/ST7MC2xx
10.6 MOTOR CONTROLLER (MTC)
10.6.1 Introduction
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 sensor-
less 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:
– Commutation step control with motor voltage
– Commutation step control with motor current
– Position Sensor or sensorless motor phase com-
– BEMF zero-crossing detection with high sensitiv-
– Realtime motor winding demagnetization detec-
– Automatic and programmable delay between
– PWM generation for three-phase sinewave or
138/309
1
regulation and current limitation
regulation, i.e. direct torque control
mutation control (six-step mode)
ity. The integrated phase voltage comparator is
directly referred to the full BEMF voltage without
any attenuation. A BEMF voltage down to
200 mV can be detected, providing high noise
immunity and self-commutated operation in a
large speed range.
tion for fine-tuning the phase voltage masking
time to be applied before BEMF monitoring.
BEMF zero-crossing detection and motor phase
commutation.
three-channel independent PWM signals.
Table 22. MTC Functional Blocks
Input Detection Block
Delay Manager
PWM Manager
Channel Manager
PWM Generator 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
Switched Mode
Autoswitched Mode
Debug Option
Checks and Controls for simulated events
Speed Measurement Mode
Summary
Voltage Mode
Over Current Handling in Voltage mode
Current Mode
Current Feedback Comparator
Current feedback amplifier
Measurement Window
MPHST Phase State Register
Emergency Feature
Dead Time Generator
Programmable Chopper
Main Features
Functional Description
Prescaler
PWM Operating mode
Repetition Down-Counter
PWM interrupt generation
Timer Re-synchronisation
PWM generator initialization and start-up
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