FEBFCM8531_B01H300A Fairchild Semiconductor, FEBFCM8531_B01H300A Datasheet - Page 10

• Manufacturer Part Number: FEBFCM8531_B01H300A
• Description: Power Management IC Development Tools 300W 3Phse PMSM/BLDC Motor Control Board
• Manufacturer: Fairchild Semiconductor
• Type: Motor / Motion Controllers & Driversr

Specifications of FEBFCM8531_B01H300A

• Rohs: yes
• Product: Devolopment Boards
• Input Voltage: 5 V
• Output Voltage: 2.5 V
• Description/function: Processor for motor control that consist of an advanced motor controller
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: -40 C
• Output Current: 29 mA
• For Use With: MCS51

5.
© 2012 Fairchild Semiconductor Corporation
Introduction of Functions
5.1. Power Supply
5.2. Motor Driving and Current Sensing
Three DC voltages are generated from the AC input:
The supply voltage for the motor, V
rectifying the AC line voltage using the full-bridge rectifier circuits. An EMI filter circuit
is included on the board to minimize EMI noise. The PFC+ and PFC_GND terminals
enable connection to an external power source when the power requirements exceed the
rating of the board’s input rectifier. In this case, it is possible to use an external voltage
source according to power requirements.
The board DC-DC converter is the FSL206MR, a Green Mode Fairchild Power Switch
(FPS™), to convert the V
An additional regulator is used to generate the 5 V bias source for the FCM8531 and
other control circuits. The power delivery block diagram is shown in Figure 7.
The FCM8531 is a configurable three-phase PMSP/BLDC motor controller with an
embedded MicroController Unit (MCU) with parallel processing cores and a configurable
Advanced Motor Controller (AMC). The AMC is specifically designed for motor control
and can be configured to perform sensorless motor control using the sensorless AMC
libraries. The controller senses the current from the three shunt resistors through the IA,
IB, and IC pins and performs the calculations to obtain the rotor position. It then outputs
the required PWM signals to the SPM control inputs to drive the motor. Beside the
sensorless calculations, the current signals also provide current information to the
current-protection circuits, such as the OCH, OCL, and short-circuit protections. Visit
http://www.fairchildsemi.com/applications/motor-control/bldc-pmsm-controller.html.
1. Supply voltage of the brushless DC motor, V
2. System voltage +15 V;
3. System voltage +5 V.
M
voltage to 15 V for the SPM module on the evaluation board.
Figure 7. Block Diagram
10
M
, is provided from a residential AC outlet by
M
+310 V
FEBFCM8531_B01H300A • Rev. 1.0.1
DC
;