FCM8531QY

FCM8531 — MCU Embedded and Configurable 3-Phase PMSM / BLDC Motor Controller Features Description 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: The FCM8531 is an application-specific parallel-core processor for motor control that consists of an Advanced Motor Controller (AMC) processor and a ® MCS 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 MCS 51 for different motor applications. Embedded MCU ®  MCS 51 Compatible  63% of Instructions’ Execution Cycle ISHORT Interrupt 8 The ADC and controller status (e.g., Fault status, Hall status, and PWM status) can be obtained via MSFRs. Short C IC > ISHORT Interrupt 8 ADC and DAC Hall Error Hall Sensor = 111 or 000 Interrupt 8 PWM Off The analog signal input pins (IA, IB, IC, VA, VB, VC, ADC0, and ADC3/AOUT) can be programmed for current sensing, voltage feedback, speed control, overtemperature protection, or other analog signal inputs; OC High IA / IB / IC > IOCH PWM Off OC Low IA / IB / IC < IOCL PWM off © 2012 Fairchild Semiconductor Corporation FCM8531 • Rev. 1.0.2 Fault and Protection www.fairchildsemi.com 16 FCM8531 — MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller  The other interrupt sources include: VDD low-voltage warnings, ADC transformation completion trigger, Hall signal trigger, slow Hall signal, Hall signal error, and short-circuit sensing. These can be used for developing the motor control system. When an interrupt occurs, the interrupt service executes interrupt service programs at the specified interrupt vector addresses. During an interrupt, another interrupt is only permitted if an interrupt source with a higher priority level occurs. Power Management There are three methods of current protection: negative over current, positive over current, and short-circuit sensing. The protection points can be set via the OCL, OCH, and SHORT of MSFR. After a protection is triggered, PWM is immediately turned off until the next cycle (cycle-by-cycle). If VDD is > VDDON, the reset status takes about 2 ms to be released. FCM8531 provides three kinds of power-saving modes:  When the input voltage is higher than the SHORT voltage, an EX8 interrupt is generated. Corresponding measures can be executed to protect system based on requirements of application systems.   SHORT OCH Phase Current VBIAS OCL In IDLE mode; execution of MCU programs pauses, but the peripheral I/O circuits continue to work (e.g. PWM, external interrupt, timing, serial output, etc.). In STOP mode; execution of programs, digital I/O interfaces, and all digital circuits pause. This mode continues until the occurrence of an EX0/EX1 external interrupt or a system reset. In SLEEP mode, the MCU and AMC are both turned off. At this moment, the alarm timer begins to count. After a timeout, the MCU and AMC are turned on again. Development Supports PWM Cycle by cycle limit Figure 26. Fairchild provides the Motor Control Development System (MCDS) Integrated Development Environment ® (IDE). On Microsoft Windows platforms, functions such as project building, program code generation, compilation, In-System Programming (ISP), and OnChip Debug Support (OCDS) are supported. This facilitates software development and debugging. Fault Interrupt Current Protection (Square-Wave) Each current-sensing pin (IA, IB, and IC) has an output of 50 µA of bias current. The recommended setting for the bias voltage is 2.0 V (RBIAS= 40 kΩ). VBIAS = IBIAS x RBIAS For detailed information please see: User Guide for MCDS IDE of FCM8531. (3) VP FCM8531 INVERTER IBIAS M 50uA SHORT Protect IA + - SHORT IB IC + Cycle-by -Cycle Protect RBIAS - OCH + OCL RS - Figure 27. Current Feedback Circuit © 2012 Fairchild Semiconductor Corporation FCM8531 • Rev. 1.0.2 www.fairchildsemi.com 17 FCM8531 — MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller Current Protections SFRs (Special Function Registers) Map Hex X000 X001 X010 X011 X100 X101 X110 F8 P0_CFG IO_CFG INT12_CFG INT12_STA DIR0 DIR1 DIR2 F0 B E8 E0 ACC D8 ADCON D0 PSW C8 T2CON C0 IRCON B8 MD0 MD1 MD2 MD3 SPSTA SPCON SPDAT SPSSN I2CDAT I2CADR I2CCON MD4 MD5 X111 Hex FF SRST F7 ARCON EF E7 DF I2CSTA D7 CRCL CRCH TL2 TH2 CF CCEN CCL1 CCH1 CCL2 CCH2 C7 IEN1 IP1 SRELH B0 MTX0 MTX1 MTX2 A8 IEN0 IP0 SRELL A0 P2 98 SCON 90 P1 88 TCON 80 P0 Table 9. Hex MTX3 MRX0 MRX1 MRX2 IRCON2 BF MRX3 B7 AF A7 SBUF 9F IEN2 MSFRADR MSFRDAT 97 DPS DPC TMOD TL0 TL1 TH0 TH1 CKCON SP DPL DPH DPL1 DPH1 WDTREL PCON 87 X110 X111 Hex 8F MSFRs (Motor Special Function Registers) Map X000 X001 X010 X011 X100 X101 78 7F 70 78 68 6F 60 67 58 5F 50 57 48 4F 40 MBUSCTL PT01 PT23 SLEEP OCH OCL SHORT DACO 47 38 Reserved Reserved Reserved Reserved Reserved Reserved ANGLE MSTAT 3F 30 ADC0L ADC0H ADC3L ADC3H 37 28 VAL VAH VBL VBH VCL VCH ADCINX BAK 2F 20 IAL IAH IBL IBH ICL ICH OCCNTL OCSTA 27 18 HALMXU HALFLT HALSTA HALINT HPERL HPERM HPERH ADCCFG 1F 10 Reserved Reserved Reserved Reserved Reserved Reserved Reserved 17 08 PWMCFG SAWCNTL SPRDL SPRDH SDLYBL SDLYBH SDLYCL SDLYCH 0F 00 MCNTL ANGCTL AS ANGDET DUTYAL DUTYA DUTYB DUTYC 07 © 2012 Fairchild Semiconductor Corporation FCM8531 • Rev. 1.0.2 www.fairchildsemi.com 18 FCM8531 — MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller Table 8. 9.0 7.0 8.70 D 17 24 0.80 A 25 16 B 7.0 8.70 9.0 32 9 8 1 1.80 PIN #1 IDENT 0.20 C A-B D TOP VIEW 0.45 ALL LEADTIPS 1.45 1.35 LAND PATTERN RECOMMENDATION SEE DETAIL A 0.8 C 32X 0.45 0.30 7.1 32X 6.9 SIDE VIEW 0.20 SEATING PLANE C A-B D R0.08 MIN 12? TOP & BOTTOM R0.08-0.20 0.25 NOTES: A) CONFORMS TO JEDEC MS-026 VARIATION BBA B) ALL DIMENSIONS IN MILLIMETERS. C) DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994. E) DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND TIE BAR PROTRUSIONS. F) LANDPATTERN STANDARD: QFP80P900X900X160-32BM. G) DRAWING FILE NAME: MKT-VBE32AREV2 Figure 28. 1.6 MAX GAGE PLANE 0.20 MIN 0.75 0.45 1.0 0.15 0.05 0.10 C DETAIL A 32-Low-Profile, Quad, Flat Pack Package (LQFP) Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/VB/VBE32A.pdf. © 2012 Fairchild Semiconductor Corporation FCM8531 • Rev. 1.0.2 www.fairchildsemi.com 19 FCM8531 — MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller Physical Dimensions FCM8531 — MCU Embedded and Configurable 3-Phase PMSM/BLDC Motor Controller © 2012 Fairchild Semiconductor Corporation FCM8531 • Rev. 1.0.2 www.fairchildsemi.com 20