MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 1 of 15
June 2012
Rev 00
6
MLX80104/5
QFN 5x5 28
IO3
SW8
VS
SW7
SW6
IO6
IO4
AWD
LIN
GNDL
GNDD
IO0
IO7
SW9
TI0
IO1
SW0
SW1
SW2
IO2
IO5
GNDA
TI1
TO
SW3
SW4
SW5
IREF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Features
Application Controller
o Internal 12 MHz RC-Oscillator
o 16-bit MULAN MCU with 16kB ROM or OTP, 512 Byte
RAM, 192 Byte EEPROM with ECC
LIN Protocol Controller according to LIN 2.x and
SAE J2602
o Baud rate up to 19.2 kBaud
o Frame processing
o Low interrupt load to the application
LIN Transceiver according to LIN 2.x and SAE J2602
o Slew rate control for best EME behaviour
o High EMI immunity
IO Configuration
o 18 fully configurable high current/high voltage inputs/outputs (7mA/26.5V)
o Ground shift tolerant I/Os
o All IOs configurable pull up or pull down characteristics
o Eight PWM outputs (8-bit, 80Hz to 30kHz)
o Ten 10-bit ADC channels
o Eight Interrupt capable Inputs
o Configurable Wake up sources (LIN, IOs, ADC)
o Constant current output (2mA) for external low voltage loads via bipolar transistor
o IOs fully diagnosable
o Integrated window watchdog and additional independent analogue watchdog
Voltage Regulator
o Low standby current consumption of typ 25µA in sleep mode
o Over-temperature shutdown, 45V load dump protected
Other Features
o Automotive Temperature Range of –40°C to 125°C
o Small MLF 5x5 28pin package
o Ready-to-use firmware available (UniROM)
Order Code Temp.
Range
Package Delivery Remark
MLX80104 KLQ-DAF-000-RE -40 - 125 °C QFN 5x5 Reel ROM
MLX80105 KLQ-DAA-000-RE -40 - 125 °C QFN 5x5 Reel OTP
Short Description
This IC is a fully integrated LIN Slave for matrix switch or single switch Applications in automotive
environment. It is suitable for bus systems according to LIN 2.x as well as SAE J2602.
The combination of physical layer LIN transceiver and LIN protocol controller along with easy to configure
switch inputs and PWM outputs make it possible to develop in a short timeframe simple, but powerful and
cheap switch slave nodes for LIN Bus systems.
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 2 of 15
June 2012
Rev 00
6
Contents
1. General Overview .............................................................................................................................. 3
1.1 MLX80104 Block Diagram ........................................................................................................... 3
2. Electrical Characteristics .................................................................................................................. 4
2.1 Absolute Maximum Ratings ......................................................................................................... 4
2.2 Operating Conditions ................................................................................................................... 5
3. IO Ports .............................................................................................................................................. 6
3.1 Common Features of Pin SWx and IOx ....................................................................................... 6
3.1.1. Pin structure ..................................................................................................................................... 6
3.2 Additional Operation Modes SWx Ports ....................................................................................... 7
3.3 Additional Operation Modes IOx Ports ......................................................................................... 8
3.4 The IREF pin ............................................................................................................................... 9
4. Application Hints ..............................................................................................................................10
4.1 Application Examples .................................................................................................................10
5. Pin Description .................................................................................................................................11
6. Mechanical Specification .................................................................................................................13
7. Standard information regarding manufacturability of Melexis products with different soldering
processes ..................................................................................................................................................14
8. Disclaimer .........................................................................................................................................15
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 3 of 15
June 2012
Rev 00
6
1.
General Overview
1.1 MLX80104 Block Diagram
Figure 1 - MLX80104 Block Diagram
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 4 of 15
June 2012
Rev 00
6
2.
Electrical Characteristics
All voltages are referenced to ground (GND). Positive currents flow into the IC.
2.1 Absolute Maximum Ratings
In accordance with the Maximum Rating System (IEC 60134). 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.
Parameter
Symbol
Condition
Min
Max
Unit
Battery Supply Voltage
V
S
-
0.3
40
V
Short term supply voltage
V
S_ld
ISO 7637/2 pulse 5; t < 400 ms
-
0.3
40
V
Transients at supply voltage
V
S_tr1
ISO 7637/2 pulse 1
[1]
-
100
V
Transients at supply voltage
V
S_tr2
ISO 7637/2 pulses 2
[1]
+50
V
Transients at high voltage signal pins
V
LINx_tr1
ISO 7637/3 pulse 1
[2]
-
100
V
Transients at high voltage signal pins
V
LINx_tr2
ISO 7637/3 pulses 2
[2]
+50
V
Transient at high voltage signal and power supply pins
V
HV_tr3
ISO 7637/2 pulses 3A, 3B
[3]
-
150
+100
V
DC voltage on LIN, SWx, IOx pins VLIN_DC
T<500ms, V
S
= 18V
VS = 0V
-
22
-40 40 V
DC voltage on IREF, AWD pin
V
logic_DC
-
0.3
7
V
ESD capability
VESDIEC
IEC 61000
-
4
-
2
Pin LIN, VS to GND -6 6 kV
VESDHBM
HBM (AEC
-
Q100
-
002)
[4]
Pin LIN, VS to GND
Other pins
-8
-2
8
2
kV
kV
V
ESDCDM
CDM (AEC
-
Q100
-
011)
-
750
750
V
Maximum latch
–
up free current at any pin
I
LATCH
-
500
500
mA
Maximum power dissipation Ptot
T
amb
= +125 °C
0.78
W
T
amb
= + 85 °C
2
Thermal impedance JA JEDEC 1s2p board, none air flow 32 K/W
Storage temperature
T
stg
-
55
+150
°C
Junction temperature
T
vj
-
40
+150
°C
Table 1 - Absolute Maximum Ratings
[1] ISO 7637/2 test pulses are applied to VS via a reverse polarity diode and >2uF blocking capacitor.
[2] ISO 7637/3 test pulses are applied to LIN via a coupling capacitance of 100nF.
[3] ISO 7637/3 test pulses are applied to LIN via a coupling capacitance of 1nF.
ISO 7637/2 test pulses are applied to VS via a reverse polarity diode and >2uF blocking capacitor.
[4] Equivalent to discharging a 100pF capacitor through a 1.5Kohm resistor conforms to AEC-Q100-002
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 5 of 15
June 2012
Rev 00
6
2.2 Operating Conditions
Parameter Symbol Min Max Unit
Battery supply voltage
[1]
V
S
5
27
V
Operating ambient temperature
T
amb
-
40
+125
°C
Table 2 - Operating Conditions
[1] Vs is the IC supply voltage including voltage drop of reverse battery protection diode, VDROP = 0.4…1V, VBAT_ECU = 6…27V.
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 6 of 15
June 2012
Rev 00
6
3.
IO Ports
The MLX80104/5 contains two types of ports. All of them are proof to battery voltage.
In case of ECU loss of battery (LOB) and a short of the wiring harness to an external supply line the
MLX80104/5 will be reverse powered.
3.1 Common Features of Pin SWx and IOx
The ports SW0..9 as well as the ports IO0..7 allow a very flexible control of up to 18 single switches or a
switch matrix or any combination of both, supplied by an internal current source of typically >7mA. The
switch control is sequential and periodical, so that only one port will be supplied at the same time.
If switches are placed outside and connected via a wiring harness to the ECU the MLX80104/5 allows full
diagnosis of short circuits or broken line.
All ports provide a programmable wake up function and a 10mA open drain low side switch (matrix row
connection to GND).
If ports are not used for switch detection, they can be configured passive (tristate behaviour) or as general
purpose 10mA open drain output with port monitor. The input thresholds are compatible to 3.3V/5V supply
systems. The accuracy of the input threshold allows a monitoring of external voltages without ADC. It allows
connection of external supplied encoders, halls or similar.
Furthermore this architecture supports driving of logic output signals for other ECU components via an
external pull up resistor as well as the driving of high side or low side loads by providing base current for an
external pnp transistor.
3.1.1. Pin structure
Figure 2 - Common pin Structure SWx and IOx
Pin
SW1
Vs
Rswitch
+
Rprot
COMP Swin_PU
Vref_h
18x multiplex
High side
COMP
Swin_PD
18x multiplex
Low side
Pad
SWx/IO_x
EN_GND
S1x
S2x
S3x
I1
I2
2µs
2µs
COMP
Vref_CMOS
Vs
ESD
Central switch pin
configuration block
SW_in Pad
SWx/IO_x
Pin
SW2
EN_GND
S3x
COMP
Vref_CMOS
Vs
ESD
SW_in
Rswitch
+
Rprot
Vbat
LS-switch
HS-switch
Vref_l
MLX80104
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 7 of 15
June 2012
Rev 00
6
Figure 2 illustrates the basic structure and control of the ports for switch detection.
The default configuration of all ports after power on or wake up is tristate. After the initialisation procedure
the ports will be configured by the MCU. The pull up or pull down current is provided by two central current
sources I1 and I2. The currents for switch control have to be applied sequentially by the multiplex switches
S1x or S2x. If a low impedance path to Ground is required (open drain buffer or matrix mode row
connection), the local switch S3x has to be used.
Because of the multiplex principle only two comparators are required to detect the port input voltage levels.
For RF interference as well as suppression of automotive disturbances the comparator path contains a
debounce filter of typically 2µs.
The multiplex switches S1, S2 as well as the local open drain buffer S3 are controlled by the registers S3H
and S3L.
3.2 Additional Operation Modes SWx Ports
Open drain output mode
The SWx pins can also be used as normal open drain outputs. This mode can be switched on via the
configuration register bits. In this mode the central current source (S1x and S3x) should not be applied to the
open drain configured pin.
Because of the high voltage capability of the pin the current capability can be easy extended via an external
pnp-transistor.
Figure 3 - Structure of SWx pins
Pin
SW_x
S3x
COMP
Vs
ESD
SW_IN
S1x/S2x
HV_clamp
EN_GND
SBY
LS/
latch
1.25V
+/-2%
MLX80104
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 8 of 15
June 2012
Rev 00
6
3.3 Additional Operation Modes IOx Ports
Open drain output mode
The IOx pin can also be used as normal open drain outputs. This mode can be switched on via the
configuration register bits. In this mode the central current source (S1x and S3x) should not be applied to the
open drain configured pin.
Because of the high voltage capability of the pin the current capability can be easy extended via an external
pnp-transistor.
ADC input mode
Every IOx pin can also be used as analogue input signal for the integrated 10-bit ADC. Via the ADC_CTL
register the IOx pins can be selected to be used as ADC channel.
Interrupt capable input
In case external events should generate an interrupt the IOx pins can also be configured as an interrupt
source. The interrupt sensitivity can be configured either for the falling or for the rising or for both edges.
PWM Output
The eight available PWM channels can be applied to the corresponding IOx pin via the register PWM_AD.
For output of the PWM channels the pin must be configured in open drain configuration.
Figure 4 - Structure of IOx pins
25µs
both edge
detect
IO_WU
Pin
IO_x
S3x
COMP
1.25V
Vs
ESD
IO_IN
S1x/S2x
IO_WAKE_EN
Level
shift
VDDD
WU
filter
ADC_IN
ADC_EN
HV_clamp
SBY
LS/
latch
HV_clamp
EN_GND
SBY
LS/
latch
MLX80104
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 9 of 15
June 2012
Rev 00
6
3.4 The IREF pin
This pin provides a calibrated pull up current from the VS supply. This output current can be used for
generation of an external reference or supply voltage by using an external bipolar transistor.
Figure 5 - Sample circuitry for IREF pin
For increasing the accuracy of the V_ext voltage at higher loads a zener diode can be placed at the base of
the transistor. V_ext = VB - VBE
Via the central current source diagnose register the IREF current can be switched on/off.
The voltage at this pin can be monitored via the internal ADC channel IREF
PAD
IREF_OUT
Vs
ESD
IREF_EN
SBY
LS/
latch
Vs
2mA +/- 5%
MLX80104
VBat
Rref 1%
V_ext +/- 10%
VB
VBE
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 10 of 15
June 2012
Rev 00
6
4.
Application Hints
Further information regarding the use of the IO and SW pins can be found in the Application note “Standard
input/output pin configurations”.
4.1 Application Examples
The SWx are used for connection to a switch matrix as well as for single switches to GND or VS
The IOx pins can be used for different purposes:
1. Single switch input connected to GND or VS
2. Rotating encoder input
3. General purpose digital input
4. Open drain high voltage capable output
5. ADC Input
The pin IREF, via an external bipolar transistor, is used to generate a 5V voltage to supply external pull up
resistors.
Figure 6 - Application schematic sample
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 11 of 15
June 2012
Rev 00
6
5.
Pin Description
Figure 7 - Pin out MLX80104/5 – Top view
MLX80104/5
QFN 5x5 28
IO3
SW8
VS
SW7
SW6
IO6
IO4
AWD
LIN
GNDL
GNDD
IO0
IO7
SW9
TI0
IO1
SW0
SW1
SW2
IO2
IO5
GNDA
TI1
TO
SW3
SW4
SW5
IREF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 12 of 15
June 2012
Rev 00
6
Table 1 – Pin Description MLX80104 QFN 5x5 28
Pin No Name Function I/O Type
1 GNDA Analogue ground and ADC ground GND
2 IREF IREF output O
3 SW5 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
4 SW4 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
5 SW3 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
6 TO Test output, unconnected in application mode O
7 TI1 Test input - connect to GND in application mode I
8 TI0 Test input - connect to GND in application mode I
9 IO5 SWx functionality and ADC input, wake up capable, PWM output I/O
10 IO2 SWx functionality and ADC input, wake up capable, PWM output I/O
11 SW2 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
12 SW1 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
13 SW0 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
14 IO1 SWx functionality and ADC input, wake up capable, PWM output I/O
15 LIN Connection to LIN bus IO
16 GNDL LIN driver ground GND
17 GNDD Digital ground GND
18 IO0 SWx functionality and ADC input, wake up capable, PWM output I/O
19 IO7 SWx functionality and ADC input, wake up capable, PWM output I/O
20 SW9 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
21 AWD Watch dog load capacitor I/O
22 SW8 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
23 VS High voltage supply, battery voltage P
24 SW7 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
25 SW6 Switch matrix I/O, single switch input, open drain output, wake up capable I/O
26 IO6 SWx functionality and ADC input, wake up capable, PWM output I/O
27 IO4 SWx functionality and ADC input, wake up capable, PWM output I/O
28 IO3 SWx functionality and ADC input, wake up capable, PWM output I/O
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 13 of 15
June 2012
Rev 00
6
6.
Mechanical Specification
Figure 8 – QFN Drawing
Table 2 – QFN28 Package Dimensions
Symbol
A
A1
A3
b
D
D2
E
E2
e
K
L
N
[6][3]
ND
[5]
NE
[5]
[1]
[2]
min
QFN28 nom
max
0.80
0
0.20
0.
18
5.00
3
.
0
0
5.00
3
.
00
0.5 0.20
0.
5
5
28 7 7
0.
90
0.0
2
0.25
3
.
10
3
.
10
0.
60
1.00
0.05
0.30
3
.
2
5
3
.
2
5
0.65
[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 total number of terminals
[4] Dimension b applies to metalized 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
[6] Depopulation is possible in a symmetrical fashion
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 14 of 15
June 2012
Rev 00
6
7.
Standard information regarding
manufacturability of Melexis products with
different soldering processes
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.aspx
MLX80104/5
LIN Slave for Switches/LIN IO Extension
MLX80104/5 – Short Datasheet Page 15 of 15
June 2012
Rev 00
6
8.
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.
© 2012 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, Africa, Asia: America:
Phone: +32 1367 0495 Phone: +1 248 306 5400
E-mail: sales_europe@melexis.com E-mail: sales_usa@melexis.com
ISO/TS 16949 and ISO14001 Certified
