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TJA1055 Dataheets PDF



Part Number TJA1055
Manufacturers NXP
Logo NXP
Description Enhanced Fauit Tolerant CAN Transceiver
Datasheet TJA1055 DatasheetTJA1055 Datasheet (PDF)

www.DataSheet4U.com TJA1055 Enhanced fault-tolerant CAN transceiver Rev. 02 — 30 October 2006 Preliminary data sheet 1. General description The TJA1055 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 .

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www.DataSheet4U.com TJA1055 Enhanced fault-tolerant CAN transceiver Rev. 02 — 30 October 2006 Preliminary data sheet 1. General description The TJA1055 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 TJA1055 is the enhanced version of the TJA1054 and TJA1054A. TJA1055 has the same functionality but in addition offering a number of improvements. The most important improvements of the TJA1055 with respect to the TJA1054 and TJA1054A are: • • • • Improved ElectroStatic Discharge (ESD) performance Lower current consumption in sleep mode Wake-up signalling on RXD and ERR without VCC active 3 V interfacing with microcontroller possible with TJA1055T/3 2. Features 2.1 Optimized for in-car low-speed communication I I I I I I I I I Pin-to-pin compatible with TJA1054 and TJA1054A 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 Very high ElectroMagnetic Immunity (EMI) in normal operating mode and in low power modes Fully integrated receiver filters Transmit Data (TxD) dominant time-out function High ESD robustness N ±8 kV Electrostatic Discharge (ESD) protection Human Body Model (HBM) for off-board pins N ±6 kV Electrostatic Discharge (ESD) protection IEC 61000-4-2 for off-board pins Low-voltage microcontroller support I 2.2 Bus failure management I Supports single-wire transmission modes with ground offset voltages up to 1.5 V I Automatic switching to single-wire mode in the event of bus failures, even when the CANH bus wire is short-circuited to VCC www.DataSheet4U.com NXP Semiconductors TJA1055 Enhanced fault-tolerant CAN transceiver I Automatic reset to differential mode if bus failure is removed I Full wake-up capability during failure modes 2.3 Protections I I I I I 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 Microcontroller interface without reverse current paths, if unpowered 2.4 Support for low power modes I Low current sleep mode and standby mode with wake-up via the bus lines I Power-on reset flag on the output 3. Quick reference data Table 1. VCC VBAT Quick reference data Conditions no time limit operating mode load dump IBAT VCANH battery supply current voltage on pin CANH sleep mode; VCC = 0 V; VBAT = 14 V VCC = 0 V to 5.0 V; VBAT ≥ 0 V; no time limit; with respect to any other pin VCC = 0 V to 5.0 V; VBAT ≥ 0 V; no time limit; with respect to any other pin ICANH = −40 mA ICANL = 40 mA Min 4.75 −0.3 5.0 −58 Typ 25 Max 5.25 +40 40 58 +58 Unit V V V V µA V supply voltage battery supply voltage Symbol Parameter VCANL voltage on pin CANL −58 - +58 V ∆VCANH ∆VCANL tPD(L) Tvj voltage drop on pin CANH voltage drop on pin CANL propagation delay TXD (LOW) to RXD (LOW) virtual junction temperature −40 1 - 1.4 1.4 +150 V V µs °C TJA1055_2 © NXP B.V. 2006. All rights reserved. Preliminary data sheet Rev. 02 — 30 October 2006 2 of 28 www.DataSheet4U.com NXP Semiconductors TJA1055 Enhanced fault-tolerant CAN transceiver 4. Ordering information Table 2. Ordering information Package Name TJA1055T TJA1055T/3 TJA1055U SO14 SO14 Description plastic small outline package; 14 leads; body width 3.9 mm plastic small outline package; 14 leads; body width 3.9 mm bare die; × × µm Version SOT108-1 SOT108-1 Type number 5. Block diagram BAT 14 VCC 10 INH WAKE STB EN 1 7 5 6 VCC DRIVER (1) WAKE-UP STANDBY CONTROL TEMPERATURE PROTECTION 9 11 12 8 RTL CANH CANL RTH 2 TXD TIMER VCC(2) 4 FAILURE DETECTOR PLUS WAKE-UP PLUS TIME-OUT ERR TJA1055T VCC(2) FILTER RXD 3 RECEIVER FILTER 13 GND 001aac769 (1) For TJA1055T/3 current source to GND; for TJA1055T pull-up resistor to VCC. (2) Not within TJA1055T/3. Fig 1. Block diagram TJA1055_2 © NXP B.V. 2006. All rights reserved. Preliminary data sheet Rev. 02 — 30 October 2006 3 of 28 www.DataSheet4U.com NXP Semiconductors TJA1055 Enhanced fault-tolerant CAN transceiver 6. Pinning information 6.1 Pinning INH TXD RXD ERR STB EN WAKE 1 2 3 4 5 6 7 001aac770 14 BAT 13 GND 12 CANL TJA1055T 11 CANH TJA1055T/3 10 VCC 9 8 RTL RTH Fig 2. Pin configuration 6.2 Pin description Table 3. Symbol INH TXD RXD ERR Pin description Pin 1 2 3 4 Description inhibit output for switching an external voltage regulator if a wake-up signal occurs transmit data input for activating the driver to the bus lines receive data output for reading out the data from the bus lines error, wake-up and power-on indication output; active LOW in no.


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