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MLX81215 Schematic ( PDF Datasheet ) - Melexis

Teilenummer MLX81215
Beschreibung (MLX81205 - MLX81215) BLDC Motor Controller
Hersteller Melexis
Logo Melexis Logo 




Gesamt 18 Seiten
MLX81215 Datasheet, Funktion
MLX81205/07/10/15
Features
Microcontroller: MLX16-FX RISC CPU
o 16 bit RISC CPU with 20DMIPS and Power-Saving-Modes
o Co-processor for fast multiplication and division
o Flash and EEPROM memory with EEC
o In-circuit debug and emulation
Supported bus interfaces:
o LIN-Interface with integrated LIN transceiver supporting LIN 2.x, certified LIN protocol
software provided by Melexis
o In-Module-Programming (Flash and EE) via pin LIN using a special Melexis fast protocol
o PWM-Interface
o Full duplex SPI, Master/Slave, double-buffered, speed programmable. DMA access. Flash
and EEPROM programming also possible via SPI.
TruSense Motor Control Technology
o Patented algorithms for sensor-less 3-phase sine and trapezoidal motor control
o Phase voltage integration filter for BEMF voltage sensing at lowest speeds
o Position dependent phase inductance sensing via shunt current measurements at stand still
and low to medium speeds
o Support of Star and Delta based motor configurations without the need for center star point
o Support of 3-phase switched reluctance motor control
Voltage Regulator
o Direct powered from 12V board net with low voltage detection
o Operating voltage VS = 5V to 18V
o Internal voltage regulator with possibility to use external regulator transistor
o Very low standby current, < 30µA in sleep mode, wake-up possible via LIN or local sources
Pre-Driver
o Pre-driver (~25Rdson) for all 3 N-FET half bridges with programmable Inter-Lock-Delay
and slope control for optimal EMC and thermal performance during power N-FET switching
o Monitoring of Drain-Source voltages of the N-FETs
Periphery
o 4 independent 16 bit timer modules with capture and compare, and additional software
timer
o 3 programmable 12 bit PWM units with programmable frequencies
o 10 bit ADC converter (2µs conversion time) and DMA access
o On-chip temperature sensor with ±10K accuracy
o System-clock-independent fully integrated watchdog
o 32 MHz ±5% internal RC oscillator with PLL
o Optional crystal oscillator
o Load dump and brown out interrupt function
o Integrated shunt current amplifier with programmable gain
Product Abstract
TFR / CPA
Page 1 of 18
Rev 3.9
11-May-2012
Free Datasheet http://www.Datasheet4U.com






MLX81215 Datasheet, Funktion
MLX81205/07/10/15
2. Pin Description
Name
VS
RTG
VDDA
V5R
V5IN
VDDD
GNDD
GNDCAP
GNDDRV
GNDA
LIN
IOHV
TI0
TI1
TO
OSC1
OSC2
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
CLKO
SHU
SHV
SHW
T
VREF
CP2
HS2
W
LS2
CP1
HS1
V
LS1
CP0
HS0
U
LS0
VBAT_S1
VBAT_S2
Type
P
O
P
P
I
P
GND
GND
GND
GND
HVIO
HVIO
I
I
O
I
O
LVIO
LVIO
LVIO
LVIO
LVIO
LVIO
LVIO
LVIO
LVIO
HVO
HVI
HVI
HVI
HVI
P
HVIO
HVIO
HVI
HVO
HVIO
HVIO
HVI
HVO
HVIO
HVIO
HVI
HVO
HVI
HVI
Function
Battery Supply
3.3V External MOS Gate Control
3.3V Supply
5V Regulator Output for external NFET
5V Regulator Input
1.8V Regulator output
Digital ground
Digital ground
Driver ground
Analog ground
Connection to LIN bus or PWM interface
General purpose IO pin
Test input, debug interface
Test input, debug interface
Test output, debug interface
Quarz interface input
Quarz interface ouput
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
General purpose IO pin (Low voltage 3.3V)
Switchable 250kHz clock output to VREF level
Phase U input to BEMF sensing blocks
Phase V input to BEMF sensing blocks
Phase W input to BEMF sensing blocks
Reference input to BEMF sensing blocks
Clamped 8V or 12V ref. voltage for bootstrap
High side bootstrap capacitor driver 2
N-FET high side gate driver 2
Phase W input to HS2 buffer and BEMF sensing blocks
N-FET low side gate driver 2
High side bootstrap capacitor driver 1
N-FET high side gate driver 1
Phase V input to HS1 buffer and BEMF sensing blocks
N-FET low side gate driver 1
High side bootstrap capacitor driver 0
N-FET high side gate driver 0
Phase U input to HS0 buffer and BEMF sensing blocks
N-FET low side gate driver 0
VS high side input for current sensing
VS low side input for current sensing
MLX81205
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MLX81207
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MLX81210
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MLX81215
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Product Abstract
TFR / CPA
Page 6 of 18
Rev 3.9
11-May-2012
Free Datasheet http://www.Datasheet4U.com

6 Page









MLX81215 pdf, datenblatt
MLX81205/07/10/15
4.4 Sensor-less BLDC Motor Control with absolute position sensing
In the sample application of Figure 5, the MLX81210 is working with an absolute position sensor in order to
measure the position of the gear shaft in throttle valve application systems or any other similar applications,
where absolute precise position sensing is requested.
Figure 5 – Typical Sensor-less BLDC Motor Control Application Example with MLX81210 and Triaxis®
absolute position sensing
Product Abstract
TFR / CPA
Page 12 of 18
Rev 3.9
11-May-2012
Free Datasheet http://www.Datasheet4U.com

12 Page





SeitenGesamt 18 Seiten
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