MLX81100 [MELEXIS]
LIN Slave for FET Control; LIN从属的FET控制
| 型号： | MLX81100 |
| 厂家： | 
Melexis Microelectronic Systems |
| 描述： | LIN Slave for FET Control |
| 文件： | 总15页 (文件大小：400K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MLX81100
LIN Slave for FET Control
Features
CPU
o
MelexCM CPU
o Dual RISC CPU MLX4/16 – 5MIPS
o 4-bit LIN protocol controller
o 16-bit application CPU
o
Internal RC-Oscillator
Memories
o
o
2kbyte RAM, 32kbyte Flash, 128 byte EEPROM
Flash for series production
Periphery
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
o
o
o
o
o
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, < 50µA 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
o
Seat heating control
Seat climatisation
o
o
Wiper control
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
OPERATING CONDITIONS .................................................................................................................... 4
ABSOLUTE MAXIMUM RATINGS ............................................................................................................ 4
3.
APPLICATION CIRCUITRY..................................................................................................................... 5
3.1
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
3.2
3.3
3.4
3.5
3.6
3.7
4.
5.
PIN DESCRIPTION ................................................................................................................................ 11
MECHANICAL SPECIFICATION........................................................................................................... 13
5.1
MLF 6X6 40 LEADS .......................................................................................................................... 13
ASSEMBLY INFORMATION.................................................................................................................. 14
DISCLAIMER.......................................................................................................................................... 15
6.
7.
MLX81100 – Product Abstract
Page 2 of 15
July 2007
Rev 015
MLX81100
LIN Slave for FET Control
1. Functional Diagram
CLKO
RTG
PS
VDD5V
POR
VS
RC-OSC.
GND
CWD
VDRV
5V/1.8V
Supply
300kHz
Voltage
Monitor
V1V8
fRC
Aux. Supply
Analog
Watchdog
Temp
SW2
Diff.
Amp
Reset
SHNT_L
SW0
BRMID1
Diff.
Amp
Ref. Mux
VS/2
BRMID1
SW1
BRMID2
Diff.
Amp
12V Ref
10 bit ADC
VS/2
BRMID2
GND
GND
MUX
VS/2
SW6
SW0 … SW7
VS/2
SW7
I/O Register
Pre-driver
Control
CP
SW0
Internal Communication Interface
Pre-
driver
High
HSBC1
HS1
Internal Communication Interface
PWM Control
50Hz...100kHz
Side 1
BRMID1
SW1
SW2
SW3
SW4
SW5
SW6
MelexCM
Dual Compare
CP
fPLL
PWMO
Prescaler
Compare on/off
Pre-
driver
High
HSBC2
HS2
16 bit TIMER
fOSC, fOSC/16,
fOSC/256
OSC2
fOSC/256
8 bit Counter
withPeriod register
Side 2
Dual Capture
Watchdog
BRMID2
Pre-
driver
Low
Clock
fPLL
Interrrupt
Controller
devider
LS1
LS2
Side 1
RAM
Pre-
driver
Low
2kbyte
Appl. CPU
MLX16
UART
SPI
Side 2
M
M
U
SW7
Flash
32kbyte
with ECC
Comm. CPU
MLX4
EEPROM
128byte
fOSC
fRC
Test
controller
PLL
LIN-SBI
(1.3 and 2.0)
fPLL
LIN-
PHY
30MHz
LIN
Multi-
CPU
debugger
GND
GND
External Communication Interface
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
Symbol
Min
Max
Unit
Battery supply voltage
Operation Current
VS
IVS
7.3
18
V
30
50
mA
µA
°C
Standby current
ISBY
Tamb
Operating ambient temperature
-40
+125 (150) [1]
Table 1 - Operating Conditions
2.2 Absolute Maximum Ratings
Parameter
Symbol
Condition
Min
Max
Unit
t < 60s
-1.0
-0.5
-20
26
40
Battery supply voltage
VS
V
t < 500 ms
t < 500 ms
BUS voltage
VBUS
VS.tr1
VBAT
V
V
V
V
V
V
V
V
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
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]
-150
VS.tr2
+100
+150
VS.tr3
-150
-150
VBUS.tr1
VBUS.tr2
VBUS.tr3
VDC
+100
+150
+7
ISO 7637/1 pulses 3A, 3B [3]
-150
-0.3
Human body model, equivalent to
discharge 100pF with 1.5kΩ,
ESD capability of pin LIN
ESDBUSHB
ESDHB
-4
-2
+4
+2
kV
kV
Human body model, equivalent to
discharge 100pF with 1.5kΩ,
ESD capability of any other pins
Thermal Resistance
Storage temperature
Rth
in free air
40.
K/W
°C
Tstg
-55
-40
+150
+150
(155)[1]
Junction temperature
Tvj
°C
Table 2 - Absolute Maximum Ratings
[1]
Target temperature after qualification. With temperature applications at TA>125°C 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 >1µF 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
VS
VDRV
CLKO
100nF
RTG
4.7…10uF
VDD5V
HSBC2
HS2
100nF
47uF
1uF
100n
V1V8
BRMID2
VBAT
100n
PS
VCC
HSBC1
HS1
IO4
IO5
VCC
Hall
sensor
100nF
BRMID1
LS1
M
VCC
SW0
SW1
SW3
SW4
Temperature
sensor
LS2
SW2
GND
SW5
SW6
SW7
Shunt
VBAT
SPI Interface
IO0
IO1
IO2
IO3
Reverse
Polarity
Protection
MLX
90316
SHNT_L
CWD
CWD
10
TI0
TI1
TO
LIN
LIN
180p
GND
GND
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
SW7
CAN
SW4
VCC
Transceiver
(TJA1050)
TxD
RxD
IO0
IO1
CANH
CANL
CS_1
SO
CAN
Controller
(MCP2515)
IO2
IO3
IO4
IO5
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
CLKO
VS
VBAT
VBAT
VS
VDRV
CLKO
100nF
100nF
4.7 ..10uF
47uF
4.7 ..10uF
RTG
RTG
VDD5V
VDD5V
HSBC2
HS2
HSBC2
HS2
47uF
1uF
100nF
100nF
100nF
100nF
V1V8
V1V8
BRMID2
BRMID2
1uF
VBAT
VBAT
100nF
100nF
PS
PS
VCC
VCC
VCC
VCC
Hall
sensor
HSBC1
HS1
HSBC1
HS1
IO4
IO4
VCC
VCC
Hall
sensor
100nF
Temperature
sensor
100nF
IO5
Temperature
sensor
IO5
BRMID1
LS1
BRMID1
LS1
M
M
SW3
SW3
SW4
SW5
SW4
SW5
SW6
VBAT VCC
VCC VBAT
High speed
comunication Interface
with propietary protocol
INH
STB
TxD
RxD
SW6
SW7
CANH
CANL
CANH
CANL
STB
RxD
TxD
HS-CAN
Transceiver
(TJA1041)
LS2
SW7
LS2
SW2
GND
HS-CAN
Transceiver
(TJA1041)
SW2
GND
SW0
SW1
SW0
SW1
EN
Shunt
Shunt
VBAT
VBAT
VCC
CS
VCC
IO0
IO1
IO2
IO3
Optional
serial EEPROM
if needed for
SCLK
SDOUT
SDIN
SHNT_L
CWD
SHNT_L
CWD
Reverse
Polarity
Protection
Reverse
Polarity
Protection
IO0
IO1
IO2
IO3
Serial
EEPROM
security reason
CWD
CWD
TI0
TI1
TO
TI0
TI1
TO
LIN
10
LIN
LIN
180p
GND
GND
GND
GND
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
VS
VDRV
CLKO
4.7 ..10uF
100nF
RTG
VDD5V
V1V8
HSBC2
HS2
100nF
47uF
1uF
100nF
100nF
BRMID2
VBAT
PS
SW0
SW1
SW3
HSBC1
HS1
SW4
SW5
100nF
BRMID1
LS1
M
SW6
SW7
VCC
LS2
SW2
GND
Temperature
sensor
IO0
IO1
IO2
IO3
VCC
Shunt
VBAT
VCC
SHNT_L
CWD
Reverse
Polarity
Protection
Rotation-
encoder
IO4
IO5
CWD
TI0
TI1
TO
10
LIN
LIN
180p
GND
GND
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 DC-
motors 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
VS
VDRV
CLKO
VBAT
4.7 ..10uF
RTG
HSBC2
VDD5V
47uF
VBAT
Fan 1
100nF
100nF
100nF
HS2
BRMID2
V1V8
1uF
Shunt
M
PS
SW6
SW1
Heater 2
VBAT
Fan 2
LS1
SW2
SW3
VBAT
M
HSBC1
100nF
SW7
LS2
HS1
BRMID1
Shunt
SW4
SW5
VCC
SW0
VBAT
IO4
IO5
Heater 1
GND
IO0
IO1
IO2
IO3
SHNT_L
CWD
CWD
10
TI0
TI1
TO
LIN
LIN
180p
GND
GND
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
Function
I/O Type
HV supply, battery voltage
Internal regulated voltage supply, 5V supply output
Internal regulated voltage supply, 1.8V supply output
Ground
P
P
VDD5V
V1V8
GND
PS
P
P
Switchable battery supply
Ground
P
GND
SHNT_L
GND
SW1
P
Low shunt input for differential ADC measurement
Ground
I
GND
IO
IO
IO
IO
IO
IO
IO
IO
IO
GND
IO
P
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
SW2
SW3
SW4
SW5
SW6
SW7
SW8
LIN
GND
CWD
VDRV
HSBC1
HS1
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
O
O
BRMID1
HSBC2
HS2
I
O
O
BRMID2
LS1
I
O
LS2
O
GND
GND
MLX81100 – Product Abstract
Page 11 of 15
July 2007
Rev 015
MLX81100
LIN Slave for FET Control
Name
IO0
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
I/O Type
IO
IO
IO
IO
IO
IO
I
IO1
IO2
IO3
IO4
IO5
TI0
TI1
Test input, debug interface
I
TO
Test output, debug interface
O
O
O
RTG
CLKO
Output for external voltage regulation transistor
Clock Output
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
A
D/2
A2
A1
A3
4x P
b
D1
D2
D1/2
PIN1 ID
0.20 R
D2/2
1
2
3
1
2
3
+
B
e
0.25min
(Nd-1)xe ref.
Top View
Bottom View
Side View
Figure 9 – MLF 6x6 40 Drawing
Table 4 – MLF40 Package Dimensions
Symbol
A
-
A1
0
A2
-
A3
B [4]
D
D1
D2
E
E1
E2
e
L
[1]
3.95
4.10
4.25
3.95
4.10
4.25
0.30
min
[2]
MLF40 nom
0.20
6.00
5.75
6.00
5.75
0.50
0.85
0.90
0.01
0.05
0.65
0.70
0.40
max
12°
0.50
Symbol
P
N [3] Nd [5] Ne [5]
[1]
[2]
0.24
0.42
0.60
min
MLF40 nom
max
40
10
10
[1] Dimensions and tolerances conform to ASME Y14.5M-1994
[2] All dimensions are in millimeters. All angels are in degrees
[3] N is the number of terminals
[4] Dimension b applies to metallized terminal and is measured between 0.25 and 0.30mm from terminal tip
[5] 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.
© 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
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MLX81100 – Product Abstract
Page 15 of 15
July 2007
Rev 015
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