ST7FMC1M2T3 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST7FMC1M2T3

8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI™

STMicroelectronics 

ST7MC1xx/ST7MC2xx

MOTOR CONTROLLER (Cont’d)

Figure 77. Simplified MTC Block Diagram

DELAY MANAGER

or SPEED MEASURE UNIT (not represented)

DELAY

WEIGHT

CAPTURE Zn

MTIM

TIMER

BEMF ZERO-CROSSING

DETECTOR

BEMF=0

[Z]

TACHO Int/Ext

MCIA

MCIB

MCIC

MCVREF

DELAY = WEIGHT x Zn

=?

COMMUTE [C]

Encoder Unit

INPUT DETECTION

MEASUREMENT

WINDOW

GENERATOR

(I) (V)

PWM MANAGER

12-bit counter

Phase U

(I)

CURRENT

VOLTAGE

(V)

MODE

MCO5

MCO4

MCO3

MCO2

MCO1

MCO0

U, V, W

Phases

OAON bit

+

NMCES

OAP

CFAV bit

-

OAN

OAZ(MCCFI1)

ADC

MCCFI0

VDD

MCCREF (V) R1

1 (V)

CHANNEL

MANAGER

C

12-bit THREE-PHASE

PCN bit PWM GENERATOR

(I) R2

R3

Phase U

Phase V

Phase W

MCPWMU

MCPWMV

MCPWMW

[Z] : Back EMF Zero-crossing event

Zn : Time elapsed between two consecutive Z events

[C] : Commutation event

Cn : Time delayed after Z event to generate C event

(I): Current mode

(V): Voltage mode

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