FU6812

3-ph. Motor Control 8051 MCU+ME, sensorless FOC (16k/1k)

The high-performance motor drive chip incorporates MotionEngine ME core and 8051 core with 16K FLASH and 1k RAM.

ME core integrates FOC, MDU, LPF, PID and SVPWM modules that allow for automatic calculation of FOC or square-wave control by the hardware for sensored/sensorless BLDC/PMSM motors. 8051 core is used for parameter configuration and routine processing. Most of 8051 core instruction cycle takes 1T or 2T clock cycle(s).

The dual cores work in parallel to achieve high-performance motor control. The chip integrates high-speed operational amplifiers, comparators, high-speed ADC, multiplier/divider, CRC, Serial Interfaces, Timers, PWM module and high-voltage LDO, which are suitable for FOC or square-wave based BLDC/PMSM motors.

Technical Data

P/N:	FU6812 L2	FU6812 N2	FU6812 S2	FU6812 V
Package	LQFP48 7×7 mm	QFN32 4×4 mm	SSOP24	SSOP24
Motion Engine ME	x	x	x	x
FOC Hardware	x	x	x	x
SVPWM Hardware	x	x	x	x
BLDC Hardware	x	x	x	x
Single Phase	–	–	–	–
PI/PID	4	4	4	4
LPF	4	4	4	4
MDU	4	4	4	4
Sin/Cos/Atan	4	4	4	4
PFC Hardware	–	–	–	–
MCU core	8051	8051	8051	8051
MIPS [MHz]	24	24	24	24
Flash [kB]	16	16	16	16
RAM [kB]	1	1	1	1
GPIO	32	20	12	13
I²C	1	1	–	–
UART	1	1	1	1
SPI	1	1	–	–
CAN	–	–	–	–
LIN	–	–	–	–
DMA	2	2	2	2
Timer	6	6	6	6
WDT	1	1	1	1
PreDriver-	–	–	–	–
Driver Voltage, max. [V]	–	–	–	–
Drive Current, max. + [A]	0,05	0,05	0,05	0,05
Drive Current, max. – [A]	0,1	0,1	0,1	0,1
Sensor/Sensorless Square Wave	x	x	x	x
Sensor SVPWM	x	x	x	x
Sensor FOC	x	x	x	x
Sensorless FOC	x	x	x	x
ADC	1	1	1	1
ADC channels	12	7	6	7
ADC resolution [bit]	12	12	12	12
DAC	1	1	1	1
DAC resolution [bit]	8	8	8	9
OP	3	1	1	3
Comparator	3	2	2	2
Temp. Range (5-12V)	-40…105°C	-40…105°C	-40…105°C	-40…105°C
Temp. Range (5-24V)	-40…85°C	-40…85°C	-40…85°C	-40…85°C

Downloads

FU6812 Datasheet (PDF)

Family overview

P/N:	FU6812	FU6813	FU6815	FU6816
Package	LPQFP48 7*7 QFN32 4×4 mm SSOP24	LPQFP48 7*7 QFN32 4×4 mm LPQFP52 10x10mm	LPQFP48 7*7 TSSOP28	LPQFP48 7*7
Motion Engine ME	x	x	x	x
FOC Hardware	x	x	x	x
SVPWM Hardware	x	x	x	x
BLDC Hardware	x	x	x	x
Single Phase	–	–	–	–
PI/PID	4	3	4	4
LPF	4	1	4	4
MDU	4	1	4	4
Sin/Cos/Atan	4	1	4	4
PFC Hardware	–	x	x	–
MCU core	8051	8051	8051	8051
MIPS [MHz]	24	24	24	24
Flash [kB]	16	32	32	32
RAM [kB]	1	1,75	4	4
GPIO	34/20/12/13	34/20/35	38/19	38
I²C	1/-	1	1	1
UART	1	2	1/2	2
SPI	1/-	1	1/-	1
CAN	–	–	–	1
LIN	–	–	–	1
DMA	2	2	2	2
Timer	6	6	6	6
WDT	1	1	1	1
PreDriver-	–	–	–	–
Driver Voltage, max. [V]	–	–	–	–
Drive Current, max. + [A]	0,05	0,05	0,05	0,05
Drive Current, max. – [A]	0,1	0,1	0,1	0,1
Sensor/Sensorless Square Wave	x	x	x	x
Sensor SVPWM	x	x	x	x
Sensor FOC	x	x	x	x
Sensorless FOC	x	x	x	x
ADC	1	1	1	1
ADC channels	6/7/12	9/14	12/14	16
ADC resolution [bit]	12	12	12	12
DAC	1	3	3	2
DAC resolution [bit]	8/9	9/8/6	9/8/6	9/6
OP	1/3 (	2/4	4	4
Comparator	2/3	4	4	3
Temp. Range (3-5,5V)		-40…125°C
Temp. Range (5-12V)	-40…105°C	-40…105°C
Temp. Range (5-24V)	-40…85°C	-40…85°C	-40…85°C	-40…85°C