TH8080 Single LIN Bus Transceiver Features and Benefits Pin Diagram Single wire LIN transceiver Compatible to LIN Protocol Specification, Rev. 1.1 Compatible to ISO9141 functions SOIC8NB RxD 1 8 N.C. Up to 20 kbps bus speed N.C. 2 7 VS Low RFI due to slew rate control VCC 3 6 BUS Fully integrated receiver filter Protection against load dump, jump start TxD 4 5 GND Bus terminals proof against short-circuits and transients in the automotive environment Very low (30 µA) typical power consumption in recessive state and therefore no sleep mode necessary Thermal overload and short circuit protection High impendance Bus pin in case of loss of ground and undervoltage condition 8-pin SOIC ±4kV ESD protection on Bus pin TH8080 Ordering Information Part No. Temperature Range Package TH8080 JDC -40ºC...125ºC SOIC8, 150mil General Description The TH8080 is a physical layer device for a single wire Because of the very low current consumption of the data link capable of operating in applications where high TH8080 in the recessive state it’s particularly suitable for data rate is not required and a lower data rate can ECU applications with hard standby current require- achieve cost reductions in both the physical media com- ments , whereby no sleep/wake up control due to the ponents and in the microprocessor which use the net- microprocessor is necessary. work. The TH8080 is designed in accordance to the physical layer definition of the LIN Protocol Specification , Rev. 1.1 . The IC furthermore can be used in ISO9141 systems. Target Data Sheet Rev 1.0 November 2000 Page 1 www.melexis.com TH8080 Single LIN Transceiver Functional Diagram VS internal Supply & References VCC Biasing & Bandgap Thermal Protection POR SLEW RATE BUS Driver TxD BUS GND RxD Receive Comparator Input Filter Figure 1 - Block Diagram Target Data Sheet Rev 1.0 Nov. 2000 Page 2 www.melexis.com TH8080 Single LIN Transceiver Application Circuit Car Battery VBAT LIN BUS 1N4001 2.2uF MASTER ECU Voltage regulator 100nF VBAT +5V 100nF optional 10 100nF 100nF 100p VS VCC 33µH RxD BUS µP ECU connector to Single Wire LIN Bus TH8080 TxD GND GND 1N4001 2.2uF VBAT SLAVE ECU Voltage regulator 100nF VBAT +5V optional 10 100nF 100nF 100p 100nF VS VCC 33µH RxD µP TH8080 TxD 82pF GND GND ECU connector to Single Wire LIN Bus BUS Figure 2 - Application Circuit Target Data Sheet Rev 1.0 Nov. 2000 Page 3 www.melexis.com TH8080 Single LIN Transceiver Electrical Specification 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 TH8080 is only specified within the limits shown in ”Operating conditions”. Operating Conditions Parameter Symbol Min Max Unit Battery voltage VS 6 20 V Supply voltage VCC 4.5 5.5 V Operating ambient temperature TA -40 +125 °C Junction temperature [1] TJc +150 °C Absolute Maximum Ratings Parameter Symbol Conditions Min. Max. Unit Batterry Supply Voltage VS -0.3 +27 V Supply Voltage VCC -0.3 +7 V Short-term supply voltage VS.ld Load dump; t<500ms +40 V Transient supply voltage VS.tr1 ISO 7637/1 pulse 1[1] Transient supply voltage VS.tr2 ISO 7637/1 pulses 2[1] Transient supply voltage VS.tr3 ISO 7637/1 pulses 3A, 3B BUS voltage VBUS Transient bus voltage VBUS.tr1 ISO 7637/1 pulse 1 [2] Transient bus voltage VBUS.tr2 ISO 7637/1 pulses 2 [2] Transient bus voltage VBUS.tr3 ISO 7637/1 pulses 3A, 3B [2] DC voltage on pins TxD, RxD VDC -150 V +100 V -150 +150 V -40 +40 V -150 V +100 V -150 +150 V -0.3 +7 V ESDBUSHB Human body model, equivalent to discharge 100pF with 1.5kΩ -4 +4 kV ESD capability of any other pins ESDHB Human body model, equivalent to discharge 100pF with 1.5kΩ -2 +2 kV Maximum latch – up free current at any Pin ILATCH -500 +500 mA ESD capability of pin BUS Maximum power dissipation Ptot At Tamb = +125 °C 197 mW Thermal impedance ΘJA in free air 152 K/W Storage temperature Tstg -55 +150 °C Junction temperature Tvj -40 +150 °C ______________________________ [1] [2] ISO 7637 test pulses are applied to VS via a reverse polarity diode and >1uF blocking capacitor . ISO 7637 test pulses are applied to BUS via a coupling capacitance of 1 nF. Target Data Sheet Rev 1.0 Nov. 2000 Page 4 www.melexis.com TH8080 Single LIN Transceiver Static Characteristics (VS = 6 to 20V, VCC= 4.5 to 5.5V, TA = -40 to +125°C, unless otherwise specified) All voltages are referenced to ground (GND), positive currents are flow into the IC. Parameter Symbol Conditions Min Typ Max Unit PIN VS,VCC Supply current, dominant ISd VS = 16V,VCC = 5.5V TxD=L tbd 50 µA Supply current, dominant ICCd VS = 16V,VCC = 5.5V TxD=L tbd 1 mA Supply current, recessive ISr VS = 16V,VCC = 5.5V TxD open 8 20 µA Supply current, recessive ICCr VS = 16V,VCC = 5.5V TxD open 20 30 µA 1.2 V PIN BUS / TRANSMITTER Bus output voltage, dominant Vol_BUS TxD=L , IBUS = 40mA Bus output voltage, recessive Voh_BUS VS = 8...18V, TxD open Bus short circuit current IBUS_SHORT 0.8* VS V TxD=L , VBUS > 2.5V 40 130 mA Bus input current, recessive IBUS_leakp TxD open ,VBUS = 18V -20 20 µA Bus reverse polarity current, re- IBUS_leakn TxD open ,VBUS = -18V -1 1 mA Bus pull up resistor RBUS_pu 47 kΩ 20 30 0.4x VS 0.45* VS PIN BUS / RECEIVER Bus input threshold, recessive to dominant VihBUS_rd TxD open , -18V<VBUS < VihBUS_rd Bus input threshold, dominant to recessive VihBUS_rd TxD open , VihBUS_rd <VBUS < 18V Bus input hysteresis VBUS_hys 0.55* VS V 0.6*VS 20 V mV PIN TXD High level input voltage Vih Rising edge Low level input voltage Vil Falling edge 0.7* VCC 0.3* VCC V V TxD pull up current, high level IIH_TXD VTxD = 4V -125 -50 -25 µA TxD pull up current, low level IIH_TXD VTxD = 1V -500 -250 -100 µA Low level output voltage Vol_rxd IRxD = 1.25mA 0.9 V High level output voltage Voh_rxd IRxD = -250µA PIN RXD VCC -0.9 V Thermal protection Tsd [1] Thermal shutdown Hysteresis Thys [1] 150 180 °C 5 25 °C ______________________________ [1] Thresholds not tested in production, guaranteed by design, only switch on/off tested . Target Data Sheet Rev 1.0 Nov. 2000 Page 5 www.melexis.com TH8080 Single LIN Transceiver Dynamic Characteristics All dynamic values of the table below refer to the test-schematic schown in Figure - Timing Diagram (6V ≤ VS ≤ 20V, -40°C ≤ TA ≤ 125°C, unless otherwise specified) Parameter Symbol Conditions Slew rate falling edge tSRF 80% < VBUS < 20% , minimum & maximum bus load Slew rate rising edge tSRR 20% < VBUS < 80% , minimum bus load [1] Min Typ Max Unit -2.5 -1.7 -1 V/µs 1 1.7 2.5 V/µs Propagation delay transmitter ( TxD->BUS) ttrans_pdf TxD high to low transition[2] 4 µs Propagation delay transmitter ( TxD->BUS) ttrans_pdr TxD low to high transition[2] 4 µs Propagation delay transmitter symmetry ttrans_sym Calculate ttrans_pdf - ttrans_pdr 2 µs -2 Propagation delay receiver ( BUS->RxD) trec_pdf BUS recessive to dominant [2] 6 µs Propagation delay receiver ( BUS->RxD) trec_pdr BUS dominant to recessive[2] 6 µs Propagation delay receiver symmetry trec_sym Calculate ttrans_pdf - ttrans_pdr -2 2 µs Receiver debounce time trec_deb BUS rising & falling edge[3] 1.2 3.1 µs ______________________________ [1] Minimum slew rate of the rising edge is determined by the network time constant [2] See timing diagram figure 3 [3] See timing diagram figure 4 Target Data Sheet Rev 1.0 Nov. 2000 Page 6 www.melexis.com TH8080 Single LIN Transceiver Timing Diagrams VTxD 50% t tTrans_pdf tTrans_pdr VBUS 60% 40% t tRec_pdf tRec_pdr VRxD 50% t Figure 3 - Input/Output Timing t < trec_deb t < trec_deb VBUS 60% 40% t VRxD 50% t Figure 4 - Receiver Debouncing Filter Target Data Sheet Rev 1.0 Nov. 2000 Page 7 www.melexis.com TH8080 Single LIN Transceiver Test Circuit for Dynamic Characteristics VSUP 100n VCC 100n 900 BUS TxD GND RxD Cload[1] 20p TH8080 [1] Cmin = 500pF / Cmax =10nF Figure 5 - Test Circuit for Dynamic Characteristics 100n VSUP VCC BUS TxD GND RxD 100n 900 1nF Oszi TH8080 Schaffnergenerator Pulse 3a,3b 12V Pulse 1,2,4 Figure 6 - Test Circuit for Automotive Transients Target Data Sheet Rev 1.0 Nov. 2000 Page 8 www.melexis.com TH8080 Single LIN Transceiver Pin Description RxD 1 8 INH EN 2 7 VS TH8082 Pin Name 1 RXD 2 N.C. 3 VCC 4 TXD 5 GND 6 BUS 7 VS 8 N.C. VCC 3 6 BUS TxD 4 5 GND I/O O Function Receive data from BUS to core, LOW in dominant state 5V supply input I Transmit data from core to BUS, LOW in dominant state Ground I/O Target Data Sheet Rev 1.0 Nov. 2000 Single wire bus pin, LOW in dominant state Battery input voltage Page 9 www.melexis.com TH8080 Single LIN Transceiver Mechanical Specifications SOIC8 Package Dimensions Small Outline Integrated Circiut (SOIC), SOIC 8, 150 mil All Dimension in mm, coplanarity < 0.1 mm D E H A A1 min 4.8 3.80 10.00 5.80 0.10 max 5.0 4.00 10.65 6.20 0.25 e 1.27 b L α 0.33 0.40 0° 0.51 1.27 8° 0.013 0.016 0° 0.020 0.050 8° All Dimension in inch, coplanarity < 0.004” min 0.189 0.150 0.228 0.053 0.004 max 0.197 0.157 0.244 0.069 0.010 Target Data Sheet Rev 1.0 Nov. 2000 Page 10 0.050 www.melexis.com TH8080 Single LIN Transceiver Target Data Sheet Rev 1.0 Nov. 2000 Page 11 www.melexis.com TH8080 Single LIN Transceiver For the latest version of this document, go to our website at: www.melexis.com Or for additional information contact Melexis direct: Europe Phone: +32 13 67 04 95 E-mail: [email protected] All other locations Phone: +1 603 223 2362 E-mail: [email protected] Important Notice 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 lifesustaining 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. © 2000 Melexis GmbH. All rights reserved. Target Data Sheet Rev 1.0 Nov. 2000 Page 12 www.melexis.com