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PDF ( 数据手册 , 数据表 ) MLX81200

零件编号 MLX81200
描述 BLDC Motor Controller
制造商 Melexis
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MLX81200 数据手册, 描述, 功能
MLX81200
BLDC Motor Controller
Features
MelexCM DUAL RISC CPU
o MLX4 communication CPU
o LIN transceiver, supporting of LIN 2.0, LIN protocol software provided by Melexis
o Software update for J2602 or GM-LAN possible
o Wake up by LIN traffic or local sources
o MLX16 application CPU
o 16bit RISC-CPU with 5MIPS
o hardware multiplication in one instruction cycle
o C-programmable
o Memories
o 2kbyte shared RAM
o 30kbyte shared Flash with EEC, programmable through LIN pins
8kbytes for communication CPU, 22kbytes for application CPU
o 128bytes emulated EEPROM
Motor Control Unit
o Support of sensor less 3-phase sine and trapezoidal motor control
o Support of sensor based motor control
o Pre-driver for 3 all N-FET half bridges (~25Rdson) with several protection features
Voltage Regulator
o Direct powered from 12V board net with low voltage detection
o Operating voltage VS = 6V to 18V
o Internal voltage regulator, possibility to put an external bypass transistor for higher
temperature requirements
o Very low standby current, < 50µA in sleep mode
Periphery
o Full duplex SPI: Master/Slave, double buffered, speed programmable from 10kHz to 8MHz
o 3 independent 16bit timer modules with capture and compare
o 3 programmable 8bit PWM units with base frequency of 50Hz to 100kHz
o 10bit ADC converter (5µs conversion time)
o On chip over-temperature shut-off
o Digital watchdog on MelexCM and independent analog watchdog on analog IC
o On chip RC oscillator
o Switchable supply output for external sensors
Additional Features
o In-circuit debug and emulation
o Jump start and 40V load dump protected
MLX81200 Product Abstract
Page 1 of 15
June/2012
Rev 2.4
Free Datasheet http://www.Datasheet4U.com







MLX81200 pdf, 数据表
MLX81200
BLDC Motor Controller
2.3 BLDC Motor Control via CAN Bus Connection
In this sample application the IC can realize the driving of a BLDC motor via three external power N-FET half
bridges. Hall sensors are used to determine the rotor position. In case of battery break-down, the IC is still
capable to save sensitive data into the EEPROM, with the help of the energy stored in the 5V supply
capacitor. The current in both, the supply and ground path can be monitored. The SPI interface is used to
connect the IC to the CAN bus.
VBAT
Hall
sensor
VCC
VS
VDDR5
VDDV5
CWD
VDDV18
V5EXT
SW0
SW1
SW2
Vprot VCC
EN
VC C
CANH
CANL
CAN
Transceiver
(TJ A1041 )
STB
INH
VCC
TxD
RxD
CAN
Controller
(MCP2515 )
SW4
SW5
SW7
SW6
SW3
IO0
CS IO1
SO IO2
SI IO3
CLK IO4
INT IO5
TI0
TI1
TO
LIN
GND
GND
CLKO
VBAT_S1
VBAT_S2
VREF
CP0
HS0
U
LS0
CP1
HS1
V
LS1
CP2
HS2
W
LS2
GND_S1
T
VBAT
Rshunt
Vprot
Vprot
Vprot
Vprot
Rshunt
VBAT
GND_S2
GND
Figure 4 – Typical CAN Bus Application Example3
3 The application examples are principal application schematics only. The details need to be worked out for
each application schematic separately, depending on the application requirements.
MLX81200 Product Abstract
Page 8 of 15
June/2012
Rev 2.4
Free Datasheet http://www.Datasheet4U.com














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