TJA1054AT/VM,512 NXP

TJA1054A Fault-tolerant CAN transceiver Rev. 5 3 August 2010 Product data sheet 1. General description The TJA1054A is the interface between the protocol controller and the physical bus wires in a Controller Area Network (CAN). It is primarily intended for low-speed applications up to 125 kBd in passenger cars. The device provides differential receive and transmit capability but will switch to single-wire transmitter and/or receiver in error conditions. The TJA1054A is the ElectroStatic Discharge (ESD) improved version of the TJA1054. The TJA1054AT is, as the TJA1054T, pin and downwards compatible with the PCA82C252T and the TJA1053T. This means that these two devices can be replaced by the TJA1054AT or the TJA1054T with retention of all functions. The most important improvements of the TJA1054 and the TJA1054A with respect to the PCA82C252 and the TJA1053 are: Very low ElectroMagnetic Emission (EME) due to a very good matching of the CANL and CANH output signals Good ElectroMagnetic Emission (EMI), especially in low power modes Full wake-up capability during bus failures Extended bus failure management including short-circuit of the CANH bus line to V CC Support for easy system fault diagnosis Two-edge sensitive wake-up input signal via pin WAKE 2. Features and benefits 2.1 Optimized for in-car low-speed communication Baud rate up to 125 kBd Up to 32 nodes can be connected Supports unshielded bus wires Very low ElectroMagnetic Emission (EME) due to built-in slope control function and a very good matching of the CANL and CANH bus outputs Good ElectroMagnetic Immunity (EMI) in normal operating mode and in low power modes Fully integrated receiver filters Transmit Data (TxD) dominant time-out function 2.2 Bus failure management Supports single-wire transmission modes with ground offset voltages up to 1.5 VTJA1054A NXP Semiconductors Fault-tolerant CAN transceiver Automatic switching to single-wire mode in the event of bus failures, even when the CANH bus wire is short-circuited to V CC Automatic reset to differential mode if bus failure is removed Full wake-up capability during failure modes 2.3 Protections Bus pins short-circuit safe to battery and to ground Thermally protected Bus lines protected against transients in an automotive environment An unpowered node does not disturb the bus lines 2.4 Support for low power modes Low-current sleep mode and standby mode with wake-up via the bus lines Power-on reset flag on the output 3. Quick reference data Table 1. Quick reference data V = 4.75 V to 5.25 V V = 5.0 V to 27 V V =V T = 40 C to +150 C all voltages are CC BAT STB CC vj defined with respect to ground positive currents flow into the device unless otherwise 1 2 3 specified. Symbol Parameter Conditions Min Typ Max Unit V supply voltage 4.75 - 5.25 V CC V battery supply voltage no time limit 0.3 - +40 V BAT on pin BAT operating mode 5.0 - 27 V load dump - - 40 V I battery supply current sleep mode V =0V -30 50 A BAT CC on pin BAT V =12V BAT V voltage on pin CANH V = 0 V to 5.0 V 27 - +40 V CANH CC V 0 V no time limit BAT with respect to any other pin V voltage on pin CANL V = 0 V to 5.0 V 27 - +40 V CANL CC V 0 V no time limit BAT with respect to any other pin V voltage drop on pin CANH I = 40 mA - - 1.4 V CANH CANH V voltage drop on pin CANL I =40mA - - 1.4 V CANL CANL t bus line output rise time between 10 % and 90 % -0.6- s r C1 = 10 nF see Figure 5 t bus line output fall time between 10 % and 90 % -0.3- s f C1 = 1 nF see Figure 5 4 T virtual junction temperature 40 - +150 C vj 1 All parameters are guaranteed over the virtual junction temperature range by design, but only 100 % tested at T = 125 C for dies on wafer level, and above this for cased products 100 % tested at T =25 C, amb amb unless otherwise specified. 2 For bare die, all parameters are only guaranteed if the back side of the die is connected to ground. TJA1054A All information provided in this document is subject to legal disclaimers. NXP B.V. 2010. All rights reserved. Product data sheet Rev. 5 3 August 2010 2 of 27