ATA6834-DK Atmel, ATA6834-DK Datasheet - Page 8

• Manufacturer Part Number: ATA6834-DK
• Description: BOARD BLDC MOTOR CTRL ATA6833/34
• Manufacturer: Atmel
• Type: MOSFET & Power Driverr

Specifications of ATA6834-DK

• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6833 / ATA6834, ATmega32M1
• Primary Attributes: 3-Ph BLDC, IC with FET Driver, LIN Transceiver, Volt Regulator, Watchdog
• Secondary Attributes: LCD with Touch Screen on MCU Controller Board
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5. Microcontroller ATmega32M1
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BLDC Motor Control Kit with ATA6833/ATA6834
The ATmega32M1 has been developed to provide an integrated solution for advanced motor
control applications with CAN and LIN connectivity. Based on the high performance Atmel
AVR
sary to satisfy the needs of complex algorithms. It integrates analog blocks like 10-bit ADC,
with differential amplifiers and programmable gain options. Analog comparators with select-
able comparison levels, and interrupts on pin change I/Os. Clocked up to 64-MHz, the 12-bit
versatile synchronous Power Stage Controller generates 6 complementary programmable
high speed and precision signals to control the 3 half bridges of a motor. A frequency of 64
kHz can be achieved, with a resulting duty cycle resolution of about 1/1000. A comparator is
available for over-current detection. The reference level can be fixed using the DAC output.
Hardware fault detection will automatically and immediately put the motor in a safe position in
case a failure is detected.
The microcontrollers provide all necessary resources to control BLDC motors in their system
environments.
ATmega32M1 Main Features
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•
•
Note:
Data and Non-Volatile Program Memory
Peripheral Features
Special Microcontroller Features
– 32 Kbytes Flash of In-System Programmable Program Memory
– 1024 Bytes of In-System Programmable EEPROM
– 2048 Bytes Internal SRAM
– One 12-bit High Speed PSC (Power Stage Controller)
– One 8-bit General purpose Timer/Counter with Separate Prescaler, Compare Mode and
– One 16-bit General purpose Timer/Counter with Separate Prescaler, Compare Mode and
– CAN 2.0A/B with 6 Message Objects
– LIN 2.1 and 1.3 Controller or 8-bit UART
– One Master/Slave SPI Serial Interface
– 10-bit ADC with up to 11 Single Ended Channels and 3 Fully Differential ADC Channel Pairs
– 10-bit DAC for Variable Voltage Reference (Comparators, ADC)
– Four Analog Comparators with Variable Threshold Detection
– Interrupt and Wake-up on Pin Change
– Programmable Watchdog Timer with Separate On-Chip Oscillator
– On-chip Temperature Sensor
– Low Power Idle, Noise Reduction, and Power Down Modes
– Power On Reset and Programmable Brown Out Detection
– In-System Programmable via SPI Port
– Internal Calibrated RC Oscillator (8 MHz)
– On-chip PLL for fast PWM (64 MHz) and CPU (16 MHz)
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Capture Mode
Capture Mode
8-bit RISC architecture, the ATmega32M1 integrates all of the basic peripherals neces-
• 6 Non-overlapping Inverted PWM Output Channels with Flexible Dead-Time
• Variable PWM duty Cycle and Frequency
• Synchronous Update of all PWM Registers
• Auto Stop Function for Emergency Event
Refer to the ATmega32M1 datasheet for the complete description of the ATmega32M1
microcontroller.
9143C–AUTO–03/10
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