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MLX81100
LIN Slave for FET Control
Features
CPU
o
o
MelexCM CPU o Dual RISC CPU MLX4/16 - 5MIPS o 4-bit LIN protocol controller o 16-bit application CPU Internal RC-Oscillator
Memories
o o
2kbyte RAM, 32kbyte Flash, 128 byte EEPROM Flash for series production
Periphery
o o o o
o o o o o
Three 16-bit timer with capture and compare Full duplex SPI interface 100-kBaud UART 2 high and 2 low side FET driver with protection o Over temperature control o Short circuit protection o Current control 8-bit PWM control with programmable base frequency of 100Hz to 100kHz 8 high voltage I/Os 16-channel 10-bit ADC with high voltage option Independent analog watchdog Temperature sensor
Voltage Regulator
o o o o o
Direct powered from 12V boardnet with low voltage detection Operating voltage VS = 7V to 18V Internal voltage regulator with external load capability of 20mA External Load transistor for higher 5V loads possible Very low standby current, < 50A in sleep mode
Bus Interface
o o o o
LIN transceiver Supporting of LIN 2.x and SAE J2602 LIN protocol software provided by Melexis Wake up by LIN traffic or local sources
Additional Features
o o
On-chip CPU debugger Jump start and 40V load dump protected
Applications
LIN slaves for all kind of high current DC Motor control like o Seat heating control o Wiper control o Seat climatisation o Valve control o o Seat movement I-Drive
MLX81100 - Product Abstract
Page 1 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
Contents
1. 2. FUNCTIONAL DIAGRAM ........................................................................................................................ 3 ELECTRICAL CHARACTERISTICS........................................................................................................ 4 2.1 2.2 3. OPERATING CONDITIONS .................................................................................................................... 4 ABSOLUTE MAXIMUM RATINGS ............................................................................................................ 4
APPLICATION CIRCUITRY ..................................................................................................................... 5 3.1 3.2 3.3 3.4 3.5 3.6 3.7 SINGLE DC-MOTOR DRIVE.................................................................................................................. 5 HIGHER VCC LOADS AND HIGHER AMBIENT TEMPERATURES ................................................................ 6 HIGH SIDE REVERSE POLARITY PROTECTION....................................................................................... 6 CONNECTION TO EXTERNAL CAN CONTROLLER................................................................................... 7 DUAL DC-MOTOR DRIVE .................................................................................................................... 8 HUMAN INTERFACE DEVICE WITH DC-MOTOR ...................................................................................... 9 SEAT HEATING AND CLIMATISATION ................................................................................................... 10
4. 5.
PIN DESCRIPTION ................................................................................................................................ 11 MECHANICAL SPECIFICATION ........................................................................................................... 13 5.1 MLF 6X6 40 LEADS .......................................................................................................................... 13
6. 7.
ASSEMBLY INFORMATION.................................................................................................................. 14 DISCLAIMER.......................................................................................................................................... 15
MLX81100 - Product Abstract
Page 2 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
1. Functional Diagram
RTG PS VDD5V
POR 5V/1.8V Supply
Aux. Supply RC-OSC.
CLKO
VS V1V8 SHNT_L
GND
Voltage Monitor Temp
300kHz
fRC
Reset
SW2 SW0 BRMID1 SW1 BRMID2
Diff. Amp
Diff. Amp
Analog Watchdog
CWD
Ref. Mux
VS/2 BRMID1
Diff. Amp
GND GND
SW0 ... SW7
10 bit ADC MUX
12V Ref
VS/2 BRMID2 VS/2 SW6 VS/2 SW7
VDRV
I/O Register
SW0
Internal Communication Interface Internal Communication Interface
Pre-driver Control
CP Predriver High Side 1 CP
HSBC1 HS1 BRMID1
SW1 SW2
Multi Purpose I/O
MelexCM
fPLL Prescaler Prescaler Prescaler, fOSC, fOSC/16
fOSC, fOSC/16 fOSC, fOSC/16, , fOSC/256 f fOSC/256 /256
OSC
PWM Control
50Hz...100kHz Dual Compare Dual Compare Dual Compare
PWMO
SW3 SW4 SW5 SW6
16 bit TIMER 16 bit TIMER 16 bit TIMER
Dual Capture Dual Capture Dual Capture
Compare on/off Compare on/off Compare on/off
Watchdog
8bit Counter bit Counter 8bit Counter 8 with Period register
with Period register with Period register
Predriver High Side 2 Predriver Low Side 1 Predriver Low Side 2
HSBC2 HS2 BRMID2
Interrrupt Controller
fPLL
Clock Clock Clock devider devider devider RAM
2kbyte
LS1
SW7
Appl. CPU MLX16
LS2
M M U
Flash
32kbyte with ECC
UART SPI
Comm. CPU MLX4 PLL
30MHz
EEPROM
128byte
LIN GND
LINPHY
LIN-SBI (1.3 and 2.0)
fPLL
fOSC fRC
Test controller MultiCPU debugger
External Communication Interface
GND
IO0
IO1
IO2
IO3
IO4
IO5
TI0
TI1 TO
Figure 1- Block diagram
MLX81100 - Product Abstract
Page 3 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
2. Electrical Characteristics
All voltages are referenced to ground (GND). Positive currents flow into the IC. The absolute maximum ratings given in the table below are limiting values that do not lead to a permanent damage of the device but exceeding any of these limits may do so. Long term exposure to limiting values may affect the reliability of the device. Reliable operation of the MLX81100 is only specified within the limits shown in "Operating conditions".
2.1 Operating Conditions
Parameter Battery supply voltage Operation Current Standby current Operating ambient temperature Table 1 - Operating Conditions Symbol VS IVS ISBY Tamb -40 Min 7.3 Max 18 30 50 +125 (150) [1] Unit V mA A C
2.2 Absolute Maximum Ratings
Parameter Battery supply voltage BUS voltage Transient supply voltage Transient supply voltage Transient supply voltage Transient bus voltage Transient bus voltage Transient bus voltage DC voltage on CMOS I/O pins ESD capability of pin LIN ESD capability of any other pins Thermal Resistance Storage temperature Junction temperature Table 2 - Absolute Maximum Ratings
[1]
Symbol VS VBUS VS.tr1 VS.tr2 VS.tr3 VBUS.tr1 VBUS.tr2 VBUS.tr3 VDC ESDBUSHB ESDHB Rth Tstg Tvj
Condition t < 60s t < 500 ms t < 500 ms ISO 7637/1 pulse 1 [2] ISO 7637/1 pulses 2 [2] ISO 7637/1 pulses 3A, 3B ISO 7637/1 pulse 1 [3] ISO 7637/1 pulses 2 [3] ISO 7637/1 pulses 3A, 3B [3] Human body model, equivalent to discharge 100pF with 1.5k, Human body model, equivalent to discharge 100pF with 1.5k, in free air
Min -1.0 -0.5 -20 -150 -150 -150 -150 -0.3 -4 -2 -55 -40
Max 26 40 VBAT +100 +150 +100 +150 +7 +4 +2 40. +150 +150 (155)[1]
Unit V V V V V V V V V kV kV K/W C C
Target temperature after qualification. With temperature applications at TA>125C a reduction of chip internal power dissipation with external supply transistor is obligatory. The extended temperature range is only allowed for a limited period of time, customers mission profile has to be agreed by Melexis as an obligatory part of the Part Submission Warrant. Some analogue parameters will drift out of limits, but chip function can be guarateed. [2] ISO 7637 test pulses are applied to VS via a reverse polarity diode and >1F blocking capacitor . [3] ISO 7637 test pulses are applied to BUS via a coupling capacitance of 1nF.
MLX81100 - Product Abstract
Page 4 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
3. Application Circuitry
3.1 Single DC-Motor Drive
In this sample application the IC can realize the driving of a DC-motor via an external power N-FET bridge. The high side N-FET driving is done with a bootstrap output stage. The current control of the motor is done via shunt measurement and the reverse polarity protection of the bridge must be realized with an external power FET connected to the ground line. Short circuits of the bridge will be detected from fast comparators and in this case the bridge will be switched off. Weak short circuits are monitored with an external temperature sensor. The actual position can be read with hall sensors, which are connected to the timer capture inputs. The hall sensors are switched off during standby mode via a switchable battery voltage output. Optional it is possible to connect an external serial EEPROM via a SPI interface, if it isn't allowed to use the integrated EEPROM because of security reasons.
100nF
VBAT
4.7...10uF
VS RTG VDD5V
47uF 100n
VDRV CLKO HSBC2
100nF 100nF
HS2 V1V8 BRMID2 VBAT PS
1uF
100n
VCC
HSBC1 IO4 Hall sensor
MLX81100
VCC
HS1
100nF
IO5 VCC SW0 SW1 SW3 SW4 SW5 SW6 SW7 IO0 IO1 IO2 IO3 LIN
180p
BRMID1
M
LS1
Temperature sensor
LS2 SW2 GND Shunt VBAT Reverse Polarity Protection
CWD
SPI Interface
MLX 90316
SHNT_L CWD TI0 TI1 TO GND GND
10
LIN
GND GND
Figure 2 - Application circuitry for single DC-motor control
MLX81100 - Product Abstract
Page 5 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
3.2 Higher VCC Loads and higher Ambient Temperatures
If it is necessary to supply higher currents to external 5V loads it is possible to connect to the RTG pin an external load transistor. This external load transistor decreases also the internal power dissipation which makes it possible to use this IC also for higher ambient temperatures.
VBAT
100nF
VS
100nF
RTG
4.7...10uF
VDD5V
47uF 100n
V1V8
1uF 100n
Figure 3 - Application for higher VCC loads and higher ambient temperatures
3.3 High Side Reverse Polarity Protection
With this IC it is also possible to realise a high side reverse polarity protection for the bridge Power-FET with a normal power N-FET.
VBAT
CLKO
MLX81100
Figure 4 - High side N-FET reverse polarity protection
MLX81100 - Product Abstract
Page 6 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
3.4 Connection to External CAN Controller
If the application requires a connection to the CAN network it can be realized with the help of an external CAN communication CPU. The following circuitry shows a sample how to implement this together with our MLX81100. The communication between MLX8100 and external CAN controller is done via the SPI interface of the MelexCM. A bus wake-up will be signalised at the INH pin of the CAN transceiver. This signal will be used from a normal HV-IO pin to wake-up the MLX81100.
VCC
LIN
INH
CAN Transceiver ( TJA 1050 ) CANH CANL
TxD RxD
VCC
SW7 SW4
CS_1
IO0 IO1 IO2 IO3 IO4 IO5
CAN Controller ( MCP 2515)
SO SI CLK INT_1
Figure 5 - Connection to external CAN controller
MLX81100 - Product Abstract
Page 7 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
3.5 Dual DC-Motor Drive
In this sample application the IC can realize the driving of two DC-motors via an external power N-FET bridge. The high side N-FET driving is done with a bootstrap output stage. The current control of the motor is done via shunt measurement and the reverse polarity protection of the bridge must be realized with an external power FET connected to the ground line. Short circuits of the bridge will be detected from fast comparators and in this case the bridge will be switched off. Weak short circuits are monitored with an external temperature sensor. The actual position can be read with hall sensors, which are connected to the timer capture inputs. The hall sensors are switched off during standby mode via a switchable battery voltage output. If it is necessary to synchronize the motor movement via longer distances it can be done via the UART interface connected to an external high speed can transceiver. Via this interface together with a proprietary protocol it is possible that both motor-driver exchange real-time position information. Optional it is possible to connect an external serial EEPROM via a SPI interface, if it isn't allowed to use the integrated EEPROM because of security reasons.
100nF 100nF
VDRV
100nF
VS RTG VDD5V
47uF 4.7 ..10uF
VBAT
VBAT
4.7 ..10uF
VS RTG VDD5V
47uF 100nF
VDRV CLKO HSBC2
100nF 100nF
CLKO HSBC2
100nF
HS2 BRMID2 VBAT PS V1V8
100nF
HS2 V1V8 BRMID2 VBAT PS
1uF 100nF
1uF 100nF
VCC VCC VCC Hall sensor VCC
VCC
HSBC1 HS1
IO4
IO4
VCC
HSBC1 HS1
MLX81100
MLX81100
Hall sensor
100nF
M
IO5 SW3 SW4 SW5 SW6 SW7 SW0 SW1 IO0 IO1 IO2 IO3 LIN
INH STB TxD HS-CAN Transceiver (TJA1041) VBAT VCC
BRMID1
Temperature sensor
Temperature sensor
IO5 SW3
100nF
BRMID1
M
LS1
High speed comunication Interface with propietary protocol CANH CANL CANH CANL
VCC VBAT
SW4 SW5 SW6
STB RxD TxD
LS1
LS2 SW2 VBAT Reverse Polarity Protection
CWD
RxD
HS-CAN Transceiver (TJA1041)
SW7 SW0 SW1
LS2 SW2 GND Shunt VBAT Reverse Polarity Protection
CWD
Shunt
GND
EN VCC VCC Optional serial EEPROM if needed for security reason Serial EEPROM CS SCLK SDOUT SDIN
SHNT_L CWD TI0 TI1 TO GND GND
IO0 IO1 IO2 IO3 LIN
SHNT_L CWD TI0 TI1 TO GND GND
10
LIN
180p
GND GND
GND GND
Application example for Dual DC motor driver
Figure 6 - Application circuitry for a dual DC-motor system
MLX81100 - Product Abstract
Page 8 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
3.6 Human Interface Device with DC-Motor
In this sample application the IC can realize the driving of a feedback DC-motor via an external power N-FET bridge. The high side N-FET driving is done with a bootstrap output stage. The current control of the motor is done via shunt measurement and the reverse polarity protection of the bridge must be realized with an external power FET connected to the ground line. Short circuits of the bridge will be detected from fast comparators and in this case the bridge will be switched off. Weak short circuits are monitored with an external temperature sensor. The reading of the direction and positions of a rotating encoder can be easy done via the timer capture inputs. With SW0 to SW5 and IO0 to IO3 it is possible to implement a switch matrix or to connect single switches.
100nF
VBAT
4.7 ..10uF
VS RTG VDD5V
47uF 100nF
VDRV CLKO HSBC2 HS2
100nF
100nF
V1V8
1uF 100nF
BRMID2 VBAT
PS SW0 SW1 SW3 SW4 HSBC1 HS1
MLX81100
100nF
BRMID1
M
SW5
LS1 SW6
VCC
SW7 LS2 SW2
VCC
Temperature sensor IO0 IO1 IO2 IO3 IO4 IO5
GND
Shunt
VBAT
VCC
Rotationencoder
SHNT_L CWD TI0 TI1 TO GND GND
CWD
Reverse Polarity Protection
LIN
10
LIN
180p
GND GND
Figure 7 - Application circuitry for human interface device with DC-motor
MLX81100 - Product Abstract
Page 9 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
3.7 Seat Heating and Climatisation
In this sample application is implemented the driving of two heat elements via the high side and two DCmotors via the low side N-FET drivers. The high side N-FET driving is done with a bootstrap output stage. The current control of the high side FETs will be done via shunt measurement and the shunt voltage is amplified with a differential amplifier connected to the ADC. The reverse polarity protection of the low side FETs is implemented with an external power FET connected to the ground line. Short circuits of the single FETs will be detected from fast comparators and in this case the FETs will be switched off. Weak short circuits are monitored with an external temperature sensor.
100nF
100nF
VBAT
4.7 ..10uF
VS RTG VDD5V
100nF
VDRV VBAT CLKO HSBC2
100nF
VBAT Fan 1
47uF
1uF
V1V8
100nF
HS2 BRMID2 Shunt
M
PS SW6
SW1 Heater 2
VBAT Fan 2
LS1 SW2 SW3
MLX81100
VBAT HSBC1
100nF
M
SW7
HS1 BRMID1 Shunt SW0
LS2 VCC VBAT SW4 SW5 IO4 IO5 IO0 IO1 IO2 IO3 LIN
10
Heater 1 GND SHNT_L CWD TI0 TI1 TO GND GND
CWD
LIN
180p
GND GND
Figure 8 - Application circuitry for seat heating and seat climatisation
MLX81100 - Product Abstract
Page 10 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
4. Pin Description
Table 3 - Pin Description MLX81100 MLF 6x6 40 Name VS VDD5V V1V8 GND PS GND SHNT_L GND SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 LIN GND CWD VDRV HSBC1 HS1 BRMID1 HSBC2 HS2 BRMID2 LS1 LS2 GND HV supply, battery voltage Internal regulated voltage supply, 5V supply output Internal regulated voltage supply, 1.8V supply output Ground Switchable battery supply Ground Low shunt input for differential ADC measurement Ground HV in- or output, ADC-input HV in- or output, ADC-input HV in- or output, ADC-input HV in- or output, ADC-input HV in- or output, ADC-input HV in- or output, ADC-input HV in- or output, ADC-input HV in- or output, ADC-input Connection to LIN bus Ground Watchdog capacitor Clamped 12V reference voltage for bootstrap High side bootstrap capacitor driver 1 N-FET high side gate driver 1 Source connection of HS1 High side bootstrap capacitor driver 2 N-FET high side gate driver 2 Source connection of HS2 N-FET low side gate driver 1 N-FET low side gate driver 2 Ground Function I/O Type P P P P P P I GND IO IO IO IO IO IO IO IO IO GND IO P O O I O O I O O GND
MLX81100 - Product Abstract
Page 11 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
Name IO0 IO1 IO2 IO3 IO4 IO5 TI0 TI1 TO RTG CLKO Function General purpose in- or output, SPI, UART General purpose in- or output, SPI, UART General purpose in- or output, SPI, UART General purpose in- or output, SPI, UART Timer capture input 1, general purpose in- or output Timer capture input 2, general purpose in- or output Test input, debug interface Test input, debug interface Test output, debug interface Output for external voltage regulation transistor Clock Output I/O Type IO IO IO IO IO IO I I O O O
MLX81100 - Product Abstract
Page 12 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
5. Mechanical Specification
5.1 MLF 6x6 40 leads
D D/2 D1 D1/2
4x P b
A A2 D2 D2/2 PIN1 ID 0.20 R A1 A3
E1/2
0.45
1 2 3
E/2
+
1 2 3 (Ne-1)xe ref.
E1
4x P
E2/2
E2
E
B
0.25 min. L
e (Nd-1)xe ref.
0.25min
Top View
Bottom View
Figure 9 - MLF 6x6 40 Drawing
Side View
Table 4 - MLF40 Package Dimensions Symbol min MLF40 nom max A 0.85 0.90 P 0.24 0.42 0.60 40 10 10 A1 0 0.01 0.05 N [3] A2 0.65 0.70 Nd [5] Ne [5]
[1] [2]
A3 0.20
B [4]
D 6.00
D1 5.75
D2 3.95 4.10 4.25
E 6.00
E1 5.75
E2 3.95 4.10 4.25
e 0.50
L 0.30 0.40 0.50
[1] [2]
12
Symbol min MLF40 nom max
[1] [2] [3] [4] [5]
Dimensions and tolerances conform to ASME Y14.5M-1994 All dimensions are in millimeters. All angels are in degrees N is the number of terminals Dimension b applies to metallized terminal and is measured between 0.25 and 0.30mm from terminal tip Nd and Ne refer to the number of terminals on each D and E side respectively
MLX81100 - Product Abstract
Page 13 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
6. Assembly Information
Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: Reflow Soldering SMD's (Surface Mount Devices) * * IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices (classification reflow profiles according to table 5-2) EIA/JEDEC JESD22-A113 Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing (reflow profiles according to table 2)
Wave Soldering SMD's (Surface Mount Devices) and THD's (Through Hole Devices) * * EN60749-20 Resistance of plastic- encapsulated SMD's to combined effect of moisture and soldering heat EIA/JEDEC JESD22-B106 and EN60749-15 Resistance to soldering temperature for through-hole mounted devices
Iron Soldering THD's (Through Hole Devices) * EN60749-15 Resistance to soldering temperature for through-hole mounted devices
Solderability SMD's (Surface Mount Devices) and THD's (Through Hole Devices) * EIA/JEDEC JESD22-B102 and EN60749-21 Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) additional classification and qualification tests have to be agreed upon with Melexis. The application of Wave Soldering for SMD's is allowed only after consulting Melexis regarding assurance of adhesive strength between device and board. Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information on qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of the use of certain Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality.asp
MLX81100 - Product Abstract
Page 14 of 15
July 2007 Rev 015
MLX81100
LIN Slave for FET Control
7. Disclaimer
Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Melexis reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with Melexis for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by Melexis for each application. The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of Melexis' rendering of technical or other services. (c) 2005 Melexis NV. All rights reserved.
For the latest version of this document. Go to our website at www.melexis.com Or for additional information contact Melexis direct: Europe and Japan: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com All other locations: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com
ISO/TS16949 and ISO14001 Certified MLX81100 - Product Abstract Page 15 of 15 July 2007 Rev 015

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