FCM8531QY

FCM8531QY Datasheet


FCM8531 MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller

Part Datasheet
FCM8531QY FCM8531QY FCM8531QY (pdf)
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FCM8531RQY FCM8531RQY FCM8531RQY
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FCM8531 MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller

November 2013

FCM8531 MCU Embedded and Configurable 3-Phase PMSM / BLDC Motor Controller

Advanced Motor Controller AMC
• Configurable Processing Core
- Sensorless Field-Oriented Control FOC with Speed Integral Method
- Sensorless FOC with Sliding Mode - Hall Interface
• Space Vector Modulation SVM
• Sine-Wave & Square-Wave Generator
• Programmable Current Leading Phase Control
• Programmable Soft-Switching Control Dead Time
• FCM8531RQY Certified by UL for IEC-60730-1 Class B Compliance with recognized marking:

Embedded MCU
• 51 Compatible
• 63% of Instructions’ Execution Cycle <3 System

Clocks 3T
• Memory Size:
- 12 KB Flash Program Memory - 256 +1 KB SRAM Data Memory
• Extended16-Bit Multiplication / Division Unit MDU
• General-Purpose Input / Output GPIO Pins
• Full Duplex Serial Interface UART
• I2C Interface
• Serial Peripheral Interface SPI
• Three External Interrupts
• Three 16-Bit Timers
• Programmable 15-Bit Watchdog Timer WDT
• Built-in Power-On Reset POR
• Built-in Clock Generator
• Two-Level Program Memory Lock ADC and DAC
• 8-Channel, 10-Bit ADC - Auto-Trigger Sample & Hold - Four Trigger Mode Selections - Three Pre-AMP Gain Selections
• 1-Channel, 8-Bit DAC Protections
• Three Levels of Over-Current Protection OCP Power Management
• Idle Mode, Stop Mode, Sleep Mode Development Supports
• In System Programming ISP On-Chip Debug Support OCDS

The FCM8531 is an application-specific parallel-core processor for motor control that consists of an Advanced Motor Controller AMC processor and a 51-compatible MCU processor. The AMC is the core processor specifically designed for motor control. It integrates a configurable processing core and peripheral circuits to perform FOC and “Sensorless” motor control. System control, user interface, communication interface, and input/output interface can be programmed through the embedded 51 for different motor applications.

The advantage of FCM8531’s parallel-core processors is that the two processors can work independently and complement each other. The AMC processes the tasks dedicated for motor controls, such as the motor control algorithms, PWM controls, current sensing, real-time over-current protection, and motor angle calculation. The embedded MCU provides motor control commands to the AMC to perform motor control activities through a communication interface. This approach reduces the software burden and simplifies the control system program because complex motor control algorithms are executed in the AMC. Fairchild provides the Motor Control Development System MCDS IDE and MCDS Programming Kit for users to develop software, compile programs, and perform online debugging.

To meet IEC 60730-1 Class B safety standard for household appliances, FCM8531 has FCM8531RQY version in its family that has been certificated by UL for the compliance. Users can directly utilize the UL certificated AMC to quicken product development cycle for electronic controlled PMSM/BLDC motor.
• Sensorless IPM / SPM, BLDC / PMSM Motor
• Fan, Blower, Pump, Compressor, etc.

Related Resources
• FCM8531 User Manual - Hardware Description
• FCM8531 User Manual - Instruction Set
• User Guide for FCM8531 Evaluation Board

FCM8531 MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller
Ordering Information

Part Number FCM8531QY

Operating Temperature Range -40oC to 85oC

FCM8531RQY
-40oC to 85oC

Package
32-Lead, LQFP, JEDEC MS-026, Variation BBA, 7 mm Square
32-Lead, LQFP, JEDEC MS-026, Variation BBA, 7 mm Square

Packing Method Tray

Application Diagram

FCM8531 5V

DC-DC

Converter
23 DVDD

VA 15 VSEN

ISP Port +5V VPP RST SCL SDA
1µ F
33 0.1µF 10K
1nF 10K
22 AVDD

AVSS 17
24 V25 25 DVSS 26 VPP
12 RST
1 P10 2 P11 3 P12 4 P13 5 P14

P02/U 27 P03/X 28 P04/V 29 P05/Y 30 P06/W 31 P07/Z 32

IA 21 IB 20 IC 19
3-Phase Inverter
40K 1% 40K 1% 40K 1%
<100p
6 P15
7 P16
8 P17

VB 14 OTP

RUN/STOP 9 P24

VC 13

CW/CCW 10 P25

ADC0 18 SPEED

FAULT 11 P26

ADC3 16

Figure Typical Application Circuit

Motor
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Datasheet ID: FCM8531QY 514018