Product Abstract
MLX81150
LIN-Slave for relay and DC motor control
Features
Microcontroller: MLX16x8 RISC CPU
16 bit RISC-CPU
Co-processor for fast multiplication and division
In-circuit debug and emulation
Memories
32 kByte Flash with ECC
2 kByte RAM
380 Byte EEPROM with separate RAM (also called NVRAM), with ECC, for customer purposes
Supported bus interface
LIN-Interface with integrated LIN transceiver supporting LIN 2.x and SAE J2602, certified LIN protocol software
provided by Melexis
In-Module-Programming (Flash and EE) via pin LIN using a special Melexis fast protocol
PWM-Interface
Full duplex SPI, Master/Slave, double-buffered, speed programmable
Voltage regulator
Internal voltage regulator, direct powered from 12V battery supply
Operating voltage VS = 5.5V to 18V, IC will work down to 3.9V
Possibility to put an external bypass transistor for high temperature requirements
Very low SLEEP MODE current < 30uA, Wake up by LIN traffic or local sources
Periphery
4 programmable 16bit PWM modules for external transistor full bridge applications
Timer unit 16 bit with 4 capture and 4 compare
25 MHz +/-5% internal RC-oscillator with PLL, optional crystal resonator
Load dump and brown out interrupt function
Digital watchdog for software flow tracking
System-Clock-independent fully integrated watchdog
On-chip temperature sensor with +/-10K accuracy
10 bit ADC with < 6 µs conversion time with multiple channels and different ADC references, DMA access to RAM
8 multiple purpose I/Os
2 integrated relay drivers with free wheel function
2 inputs for relay contact or shunt current monitoring
Over current detection, shunt current sense
1 switch-able supply output for external Hall sensor connection
Additional features
Direct access to pin LIN possible
Temperature range -40°C up to 150°C ambient
28V jump start and 45V load dump protected
Monolithic solution: Single chip in single package realization
Small QFN32 5x5
Page 1 of 21
REV. 18
MAY 2017
Product Abstract
MLX81150
LIN-Slave for relay and DC motor control
Applications
LIN slaves for all kind of high current DC and 1 / 2 phase BLDC motor control, like
o
Window lifter
o
DC oil, water and fuel pumps
o
Sun roof
o
Throttle valves
o
o
Automatic head lean
DC/DC converters
Ordering Information
Order Code
[1]
Temperature
Range
MLX81150 LLW-DAA-000-RE
Table 1 – Ordering Information
[1]
Package
Delivery
Remark
-40 - 150 °C
QFN32 5x5
Reel
MLX81150D
.See Marking/Order Code.
Page 2 of 21
REV. 18
MAY 2017
Product Abstract
MLX81150
LIN-Slave for relay and DC motor control
Contents
1. Functional Diagram ............................................................................................................................... 4
2. Pin Description ...................................................................................................................................... 5
3. Electrical Characteristics ........................................................................................................................ 7
3.1. Operating Conditions .......................................................................................................................... 7
3.2. Absolute maximum ratings ................................................................................................................ 9
4. Application Examples........................................................................................................................... 11
4.1. Single DC-Motor Drive ...................................................................................................................... 11
4.2. Single DC Motor Drive with soft start / stop ................................................................................... 12
4.3. Single DC motor drive in FET controlled full bridge applications ................................................... 13
4.4. LED-Lamp driver, switch mode power supply ................................................................................. 14
4.5. MLX81150 in 1- and 2- phase BLDC (brush less DC) Motor control applications ......................... 15
4.6. Key inputs with different wetting currents in active and sleep configuration .............................. 16
5. Mechanical Specification ..................................................................................................................... 18
5.1. Package QFN32 5x5 .......................................................................................................................... 18
5.2. Package QFN32 5x5 Dimensions ...................................................................................................... 18
6. Marking/Order Code ........................................................................................................................... 19
6.1. Marking MLX81150........................................................................................................................... 19
6.2. Order Code MLX81150 ..................................................................................................................... 19
7. Assembly Information.......................................................................................................................... 20
8. Contact ................................................................................................................................................ 21
9. Disclaimer ............................................................................................................................................ 21
Page 3 of 21
REV. 18
MAY 2017
Product Abstract
MLX81150
LIN-Slave for relay and DC motor control
1. Functional Diagram
RTG
Clamp
PS
VDDA
OSC1
OSC2
OSCI1
VS
VDDD
AD1
3.3V/1.8V
Supply
Aux. Supply
VS
PS
VDDA / VAUX
VDDD
ISENSE
TEMP
KEY7
KEY6
KEY5
KEY4
KEY3
KEY2
KEY1
KEY0
OSC1
OSC2
VS
clamp
POR
Voltage
Monitor
Temp
Divider / PLL
RC-
OSC.
XTAL
OSC
OSCI2
f
main
MUX
10 bit
ADC
(DMA)
GNDD
GNDA
KEY0
KEY1
KEY2
KEY3
KEY4
KEY5
KEY6
KEY7
TC1
TC2
Relay-Driver
REL1
GNDH
REL2
Relay-Driver
PWMC
PWMD
PWMA
RELCON1
RELCON2
OSCI1
OSCI2
PWM_DIN1
PWM_DIN2
PWM
Control
PWMB
f
main
VS
clamp
Interrrupt
Controller
Clock
Independent
Watchdog
Digital
Watchdog
SPI
4Channel
Channel
4Channel
4Channel
416 bit PWM
16 bit PWM
16 bit PWM
16 bit PWM
16 bit Timer
16 bit Timer
Units with
Units with
DoubleCapture
Double Capture
Compare
Compare
PWM1
PWM_DIN1
VS
clamp
I/O Reg
Wake Up
PWM2
PWM_DIN2
RAM
Common Timer
M
M
U
ADC
8 bit
DAC
RELCON1
Flash
Appl. CPU
MLX16x8
SENSE1
SENSE2
RELCON2
EEPROM
Melexis
Integrated LIN
Controller
(Protocol
Boot Loader)
CPU
debugger
Test controller
LIN
GNDL
LIN
Physical
Layer
TI2 TI1
TO
Figure 1: Block Diagram
Page 4 of 21
REV. 18
MAY 2017
Product Abstract
MLX81150
LIN-Slave for relay and DC motor control
2. Pin Description
count
Pad
Pin
No.
Pin name
voltage range
remarks and description
30
1
VS
Pwr HV
Battery supply voltage; external protection against reverse polarity needed,
external blocking capacitors
Ground pin for Digital part
Ground pin for Analogue part
Ground pin for Relay Driver
Ground pin for LIN
Regulator output (~3.3 V), external blocking capacitors
Regulator output (~1.8 V), external blocking capacitors
Output for external bipolar transistor in case of HT applications
High-side switch with Ron < 40 Ohm at 20mA,
Switch-able supply (<15 V) for external components
29
27
12
15
25
28
26
32
2
2
2
1
2
2
1
1
GNDD
GNDA
GNDH
GNDL
VDDA
VDDD
RTG
PS
Pwr
Pwr
Pwr
Pwr
Pwr LV
Pwr LV
Ana LV
Ana HV
[3:10]
8
KEY[7:0]
Multi-
function
HV
High voltage I/O port with wake-up function,
Input for high or low active switches,
ADC input,
Low-side driver output 2mA (15mA),
Weak current sources for pin diagnosis and WAKE UP in SLEEP MODE
SPI Interface Pins (valid for KEY[3:0], DI, DO, CLK, CS)
31
1
AD1
Ana HV
High voltage ADC input (for VBAT measurement),
test purposes)
13, 11
2, 2
REL[2:1]
Ana HV
Low-side switch with Ron < 7 Ohm at 150 mA @150°C,
Relay driver with free wheel function,
PWM controlled output
23, 24
2
SENSE[2:1]
Ana HV
High voltage input for read out the status of relay contacts,
Current sense function for shunt current
2, 1
2
PWM[2:1]
Ana HV
Push pull output with Ron < 50 Ohm at 20mA, high output level is supply
related but max approx. 14V,
PWM controlled output
21, 22
18, 19
14
2
2
1
TC[2:1]
OSC[2:1]
LIN
Ana LV
Ana LV
Ana HV
Input for timer capture unit, Low voltage input
Crystal oscillator pin, Low voltage input, load capacitors external, ADC input
LIN 2.x transceiver BUS pin, slave only, High voltage I/O
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MAY 2017
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