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TJA1053 Datasheet(PDF) 2 Page - NXP Semiconductors |
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TJA1053 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 20 page  1997 Oct 15 2 Philips Semiconductors Preliminary specification Fault-tolerant CAN transceiver TJA1053 FEATURES Optimized for in-car low-speed communication • Baud rate up to 125 kbaud • Up to 32 nodes can be connected • Supports unshielded bus wires • Low RFI due to built-in slope control function • Fully integrated receiver filters • Permanent dominant monitoring of TXD. Bus failure management • Supports one-wire transmission modes with ground offset voltages up to 1.5 V • Automatic switching to single-wire mode in the event of bus failure • Automatic reset to differential mode if bus failure is removed. Protection • Short-circuit proof to battery and ground in 12 V powered systems • Thermally protected • Bus lines protected against transients in an automotive environment • An unpowered node does not disturb the bus lines. Support for low-power modes • Low current sleep/standby mode with wake-up via the bus lines • Power-on reset flag on the output. GENERAL DESCRIPTION The TJA1053 is the interface between the CAN protocol controller and the physical bus. It is primarily intended for low-speed applications, up to 125 kbaud, in passenger cars. The device provides differential transmit capability but will switch in error conditions to a single-wire transmitter and/or receiver. The TJA1053 is derived from the PCA82C252. 1. It is better equipped for networks with more than 15 nodes 2. A timer has been integrated at the TXD input to prevent a permanent dominant state 3. Reduced supply current in VCC standby mode 4. CANH output driver is disabled in the event that CANH is short-circuited to battery failure mode. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MIN. UNIT VCC supply voltage 4.75 − 5.25 V VBAT battery voltage no time limit −0.3 − +27 V operating 6.0 − 27 V load dump −− 40 V Isleep sleep mode current VCC =0V; VBAT =12V − 65 −µA VCANH,VCANL CANH, CANL input voltage VCC = 0 to 5.5 V; VBAT ≥ 0V; no time limit −10 − +27 V VCC = 0 to 5.5 V; VBAT ≥ 0V; t < 0.1 ms; load dump −40 − +40 V VDROP(H) CANH transmitter drop voltage ICANH =40mA −− 1.4 V VDROP(L) CANL transmitter drop voltage ICANL =40mA −− 1.4 V tPD propagation delay TXD to RXD − 1 −µs tf bus output fall time 90% to 10% − 0.5 −µs tr bus output rise time 10% to 90% − 0.5 −µs Tamb operating ambient temperature −40 − +125 °C |
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