th8056 Melexis Company, th8056 Datasheet

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th8056

Manufacturer Part Number
th8056
Description
Enhanced Single Wire Can Transceiver
Manufacturer
Melexis Company
Datasheet

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Features
Ordering Information
Part No.
TH8056 KDC A
TH8056 KDC A8
General Description
The TH8056 is a physical layer device for a single wire data link capable of operating with various CSMA/CR protocols
such as the Bosch Controller Area Network (CAN) version 2.0. This serial data link network is intended for use in
applications where a high data rate is not required and a lower data rate can achieve cost reductions in both the physical
media components and the microprocessor and/or dedicated logic devices that use the network.
The network shall be able to operate in either the normal data rate mode or the high-speed data download mode for
assembly line and service data transfer operations. The high-speed mode is only intended to be operational when the
bus is attached to an off-board service node. This node shall provide temporary bus electrical loads which facilitate
higher speed operation.
The bit rate for normal communications is typically 33.33kbit/s, for high-speed transmissions as described above a typical
bit rate of 83.33kbit/s is recommended. The TH8056 is designed in accordance with the Single Wire CAN Physical Layer
Specification GMW3089 V2.4 and supports many additional features like under-voltage lock-out, time-out for faulty
blocked
TH8056 – Datasheet
3901008056
input signals, output blanking time in case of bus ringing and a very low sleep mode current.
Fully compliant to GMW3089 V2.4 and J2411 Single Wire CAN specification for Class B
in-vehicle communications
Only 60 µA worst case sleep mode current independent from CAN voltage range
Operating voltage range 5V to 26.5V
Up to 40 kbps bus speed
Up to 100 kbps high-speed transmission mode
Logic inputs compatible with 3.3V and 5V supply systems
Control pin for external voltage regulators
Low RFI due to output wave shaping in normal and high voltage wake up mode
Fully integrated receiver filter
Bus terminals proof against short-circuits and transients in automotive environment
Loss of ground protection, very low leakage current (typ. 20µA at 26.5V and 125°C)
Protection against load dump, jump start
Thermal overload and short circuit protection
Under voltage lockout
Bus dominant time-out feature
Pb-Free 14-pin thermally enhanced and 8-pin SOIC package
Temperature Range
-40 to 125 °C
-40 to 125 °C
Page 1 of 26
Enhanced Single Wire CAN Transceiver
Package
SOIC14
SOIC8
TH8056
Revision
A
A
March 2007
Rev 012

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th8056 Summary of contents

Page 1

... TH8056 KDC A8 General Description The TH8056 is a physical layer device for a single wire data link capable of operating with various CSMA/CR protocols such as the Bosch Controller Area Network (CAN) version 2.0. This serial data link network is intended for use in applications where a high data rate is not required and a lower data rate can achieve cost reductions in both the physical media components and the microprocessor and/or dedicated logic devices that use the network ...

Page 2

... Functional Description.............................................................................................11 3.1 TxD Input pin .......................................................................................................11 3.2 Mode 0 and Mode 1 pins .....................................................................................11 3.3 RxD Output pin ....................................................................................................12 3.4 Bus LOAD pin......................................................................................................12 3.5 V INPUT pin....................................................................................................13 bat 3.6 CAN BUS pin.......................................................................................................13 3.7 INH Pin (TH8056 KDC A8 only)...........................................................................13 3.8 State Diagram......................................................................................................14 3.9 Power Dissipation................................................................................................15 3.10 Application Circuitry.............................................................................................17 4. Pin Description .........................................................................................................18 5. Package Dimensions................................................................................................19 5.1 SOIC14................................................................................................................19 5.2 SOIC8..................................................................................................................20 6. ...

Page 3

... Functional Diagram V BAT 5V Supply & References RCOsc TxD Time Out MODE0 MODE CONTROL MODE1 RxD * INH terminal is present on TH8056 KDC A only TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Biasing& V Monitor BAT Reverse Current Protection Wave Shaping CAN Driver Feedback- ...

Page 4

... Long term exposure to limiting values may affect the reliability of the device. 2.1 Operating Conditions Parameter Battery voltage Operating ambient temperature for TH8056 KDC A Junction temperature 2.2 Absolute Maximum Ratings Parameter Supply Voltage ...

Page 5

... Bus leakage current during loss of ground Bus leakage current, bus positive Bus input threshold Bus input threshold low battery Fixed Wake-up Input High Voltage Threshold Offset Wake-up Input High Voltage Threshold TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Symbol Condition PIN VBAT V BAT ...

Page 6

... Leakage current Thermal shutdown Thermal recovery [1] Leakage current in case of loss of ground is the sum of both currents I [2] Thresholds are not tested in production, but characterized and guaranteed by design TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Symbol Condition PIN LOAD I = 1mA, all active modes ...

Page 7

... Delay from Normal to High-speed/HVWU Mode Delay from High-speed /HVWU to Normal Mode Delay from Normal Mode to Standby Delay from Standby to Sleep Mode Delay from Sleep to normal Mode TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Symbol Condition min and max loads acc [1] 2 ...

Page 8

... The following load conditions are used for the measurement of the dynamic characteristics: Normal and high volt. Wake-up mode min.load/min tau 3.3KΩ/ 540pF min.load/max tau 3.3KΩ/ 1.2nF max.load/min tau 200Ω/ 5nF max.load/max tau 200Ω/ 20nF TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver cmos ih Symbol Min 2 Bus length R ...

Page 9

... Timing Diagrams V TxD 50% V CANH V max + V max ih goff 1V V RxD 50% TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Figure 2 – Input / Output Timing Page TH8056 March 2007 Rev 012 ...

Page 10

... V CANH goff V RxD V TxD 50% V CANH RxD 50% TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver < WuF Figure 3 – Wake-up Filter Time Delay Figure 4 – Receive Blanking Time Page TH8056 WuF wake up interrupt ...

Page 11

... Note: High-speed mode is only allowed with connected tool resistance in parallel to the network load. Otherwise the stability of the output signal is not guaranteed because of the slew rate enhancement for the required rise times . TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver ...

Page 12

... Mode Mode – Normal speed and signal voltage mode Transmission bit rate in normal communication is 33.333 Kbits/sec. TH8056 supports controlled waveform rise and overshoot times. Waveform trailing edge control is required to assure that high frequency components are minimized at the beginning of the downward voltage slope. ...

Page 13

... In case of battery loss (VBAT = 0 or open) the transceiver does not disturb bus communication. The maximum reverse current into power supply system doesn’t exceed 500µA. 3.7 INH Pin (TH8056 KDC A only) This Pin is a high-voltage highside switch used to control the ECU’s regulated microcontroller voltage supply. ...

Page 14

... State Diagram M0&1=>Low (if V after min. 100ms -> no mode change -> no valid wake up [1] low after HVWU, high after V TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver HVWU Mode M0 M1 INH low high V BAT High Speed Mode M0 M1 INH ...

Page 15

... The Junction temperature shouldn’t exceed under normal operating conditions the limit specified in chapter 2.3 Static Characteristics. The power dissipation the major factor determining the junction temperature. The TH8056 consumes current in different functions. A part of the supply current goes to the load and the other part dissipates internally ...

Page 16

... The thermal impedance of an SOIC8 package is about twice in comparison to the thermally enhanced SOIC14 package. Therefore the maximum power dissipation within this package is only about the half. The using of the SOIC8 version of TH8056 depends on the network architecture (number of nodes), the max. ambient temperature and the needed functionality (using of INH pin). ...

Page 17

... VBAT_ECU > 1uF (immunity to ISO7637/1 test pulses) Figure 8 – Application Circuitry TH8056 KDC A V BAT [1] recommended capacitance at VBAT_ECU > 1uF (immunity to ISO7637/1 test pulses) Figure 9 – Application circuitry TH8056 KDC A8 TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver other loads ...

Page 18

... TH8056 KDC TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver 14 GND MODE0 13 N.C. MODE1 12 CANH 11 LOAD 10 VBAT 9 INH 8 GND Name IO-Typ GND P Ground TXD I Transmit data from MCU to CAN MODE0 I ...

Page 19

... Small Outline Integrated Circiut (SOIC), SOIC 14, 150 mil All Dimension in mm, coplanarity < 0.1 mm min 0.10 0.36 0.19 max 0.25 0.45 0.25 All Dimension in inch, coplanarity < 0.004” min 0.004 0.014 0.0075 max 0.01 0.018 0.0098 TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver 8.56 3.81 5.80 0.25 1.27 8.74 3.99 6.20 0.50 0.337 0.160 0.228 0.010 0.050 0.344 ...

Page 20

... Small Outline Integrated Circiut (SOIC), SOIC 8, 150 mil All Dimension in mm, coplanarity < 0.1 mm min 0.10 0.36 0.19 max 0.25 0.46 0.25 All Dimension in inch, coplanarity < 0.004” min 0.004 0.014 0.0075 max 0.0098 0.018 0.0098 TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver 4.80 3.81 5.80 0.25 1.27 4.98 3.99 6.20 0.50 0.189 0.150 0.2284 0.0099 0.050 0.196 ...

Page 21

... SOIC8 1.5 1.75 4.0 2.0 0.6 ±0.1 ±0.1 ±0.1 +0 can be calculated with package specification Cover Tape width 13.3 mm. TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver max. 10° Sectional View < A > Parts per Reel 2500 2500 ...

Page 22

... Reel Specification for SOIC14NB A A max 330 Width of half reel TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver 2.0 ±0.5 13.0 +0,5/-0,2 N min 100.0 100.0 Page TH8056 min 20 max 4.4 7.1 8.4 11.1 March 2007 Rev 012 ...

Page 23

... Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 7.2 ESD-Test The TH8056 is tested according to MIL883D (human body model). 7.3 EMC The test on EMC impacts is done according to ISO 7637-1 for power supply pins and ISO 7637-3 for data- and signal pins ...

Page 24

... Change of “Short duration operating supply voltage” Change of “Receive Delay” - Change of “Low level input voltage” at TxD, Mode 0,1 - 012 - Change of load pin definition to be compliant to GMW3089 2.4 TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Changes Page TH8056 Remark Date Initial Release Sep ...

Page 25

... Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information on qualification 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_leadfree.asp TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver Page ...

Page 26

... For the latest version of this document our website at Or for additional information contact Melexis Direct: Europe and Japan: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com TH8056 – Datasheet 3901008056 Enhanced Single Wire CAN Transceiver www.melexis.com All other locations: Phone: +1 603 223 2362 E-mail: sales_usa@melexis ...

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