TLE6258-2G

D ata Sheet, Rev. 2.1, Aug. 2007 TLE6258-2G LIN Transceiver Automotive Power Edition 2007-08-08 Published by Infineon Technologies AG 81726 Munich, Germany © 2004 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. LIN Transceiver TLE6258-2G Features • • • • • • • • • • Single-wire transceiver, suitable for LIN protocol Compatible to LIN specification 1.2, 1.3 and 2.0 Compatible to ISO 9141 functions Transmission rate up to 20 kBaud Very low current consumption in stand-by mode Wake-up from Bus Short circuit proof to ground and battery Overtemperature protection Green Product (RoHS compliant) AEC Qualified Description The single wire transceiver TLE6258-2G is a monolithic integrated circuit in a PG-DSO-8 package. It works as an interface between the protocol controller and the physical bus. The TLE6258-2G is especially suitable to drive the bus line in LIN systems in automotive and industrial applications. Further it can be used in standard ISO9141 systems. In order to reduce the current consumption the TLE6258-2G offers a stand-by mode. A wake-up caused by a message on the bus sets the RxD output low until the device is switched to normal operation mode. The IC is based on the Smart Power Technology SPT® which allows bipolar and CMOS control circuitry in accordance with DMOS power devices existing on the same monolithic circuit. The TLE6258-2G is designed to withstand the severe conditions of automotive applications. Type TLE6258-2G Data Sheet 3 Package PG-DSO-8 Rev. 2.1, 2007-08-08 TLE6258-2G TL E6258- 2G R xD EN H 1 2 3 4 8 7 6 5 AEP03406.VSD N .C . VS Bus GN D V CC T xD Figure 1 Table 1 Pin No. 1 2 3 4 5 6 7 8 Pin Configuration (top view) Pin Definitions and Functions Symbol RxD ENN Function Receive data output; integrated pull-up, LOW in dominant state Enable not input; integrated 30 kΩ pull-up, transceiver in normal operation mode when LOW 5 V supply input Transmit data input; integrated pull-up, LOW in dominant state Ground Bus output/input; internal 30 kΩ pull-up, LOW in dominant state Battery supply input Not connected VCC TxD GND Bus VS n.c. Data Sheet 4 Rev. 2.1, 2007-08-08 TLE6258-2G VS 7 TL E6258 -2G 3 VCC 30 kΩ M ode C ontrol D river T em p.Protection 2 ENN 30 k Ω 6 Output Stage Bus 4 T xD R eceiver 1 5 R xD GND AEB03405.VSD Figure 2 Functional Block Diagram Data Sheet 5 Rev. 2.1, 2007-08-08 TLE6258-2G Application Information Normal Mode ENN Low VCC ON ENN Low Start Up Power Up Power-Up ENN High ENN Low ENN High VCC RxD Low 1) ON or High 3) Off Wake Up t > tWAKE Stand-by Mode ENN High VCC ON or Off 1) After wake-up via bus 3) After start up, VCC ON TOAEA03451_1.VSD Figure 3 State Diagram For fail safe reasons the TLE6258-2G has already a pull-up resistor of 30 kΩ implemented. To achieve the required timings for the dominant to recessive transition of the bus signal an additional external termination resistor of 1 kΩ is required. It is recommended to place this resistor in the master node. To avoid reverse currents from the bus line into the battery supply line in case of an unpowered node, it is recommended to place a diode in series to the external pull-up. For small systems (low bus capacitance) the EMC performance of the system is supported by an additional capacitor of at least 1 nF in the master node (see Figure 6). In order to reduce the current consumption the TLE6258-2G offers a stand-by mode. This mode is selected by switching the Enable Not (ENN) input high (see Figure 3). In the stand-by mode a wake-up caused by a message on the bus is indicated by setting the RxD output low. When entering the normal mode this wake-up flag is reset and the RxD output is released to transmit the bus data. Data Sheet 6 Rev. 2.1, 2007-08-08 TLE6258-2G Table 2 Parameter Voltages Absolute Maximum Ratings Symbol Limit Values Min. Max. 6 40 32 40 V V V V V kV kV – – – Unit Remarks Supply voltage Battery supply voltage Bus input voltage Bus input voltage Logic voltages at EN, TxD, RxD Electrostatic discharge voltage at VS, Bus Electrostatic discharge voltage Temperatures Junction temperature VCC VS Vbus Vbus VI VESD VESD -0.3 -0.3 -20 -20 -0.3 -4 -2 VCC + 0.3 4 2 t