TJA1021 ISO 17987/LIN 2.x/SAE J2602 transceiver Rev. 8 18 December 2018 Product data sheet 1. General description The TJA1021 is the interface between the Local Interconnect Network (LIN) master/slave protocol controller and the physical bus in a LIN. It is primarily intended for in-vehicle sub-networks using baud rates from 1 kBd up to 20 kBd (/20 variant) and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602 and ISO 17987-4:2016 (12 V). The TJA1021 is pin-to-pin compatible with the TJA1020 and MC33662(B). The transmit data stream of the protocol controller at the transmit data input (TXD) is converted by the TJA1021 into a bus signal with optimized slew rate and wave shaping to minimize ElectroMagnetic Emission (EME). The LIN bus output pin is pulled HIGH via an internal termination resistor. For a master application, an external resistor in series with a diode should be connected between pin INH or pin V and pin LIN. The receiver detects BAT the data stream at the LIN bus input pin and transfers it via pin RXD to the microcontroller. In Sleep mode, the power consumption of the TJA1021 is very low. In failure modes, the power consumption is reduced to a minimum. 2. Features and benefits 2.1 General LIN 2.x/ISO 17987-4:2016 (12 V)/SAE J2602 compliant Baud rate up to 20 kBd (/20 variant) Very low ElectroMagnetic Emission (EME) High ElectroMagnetic Immunity (EMI) Passive behavior in unpowered state Input levels compatible with 3.3 V and 5 V devices Integrated termination resistor for LIN slave applications Wake-up source recognition (local or remote) K-line compatible Pin-to-pin compatible with TJA1020 and MC33662(B) Available in SO8 and HVSON8 packages Leadless HVSON8 package (3.0 mm 3.0 mm) with low thermal resistance supporting Automated Optical Inspection (AOI) capability 2.2 Low power management Very low current consumption in Sleep mode with local and remote wake-upTJA1021 NXP Semiconductors ISO 17987/LIN 2.x/SAE J2602 transceiver 2.3 Protection mechanisms High ESD robustness: 6 kV according to IEC 61000-4-2 for pins LIN, V and BAT WAKE N Transmit data (TXD) dominant time-out function Bus terminal and battery pin protected against transients in the automotive environment (ISO 7637) Bus terminal short-circuit proof to battery and ground Thermally protected 3. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit battery supply voltage limiting value with respect to GND 0.3 - +40 V V BAT battery supply current Sleep mode V =V V =V 2710 A I BAT LIN BAT WAKE N BAT V = 0 V V = 0 V TXD SLP N Standby mode bus recessive 150 450 1000 A V =V V = V V =V INH BAT LIN BAT WAKE N BAT V = 0 V V = 0 V TXD SLP N Standby mode bus dominant 300 800 1200 A V = 12 V V = 12 V V = 0 V BAT INH LIN V =12V V = 0 V V = 0 V WAKE N TXD SLP N Normal mode bus recessive 300 800 1600 A V = V V = V V =V INH BAT LIN BAT WAKE N BAT V =5V V = 5 V TXD SLP N Normal mode bus dominant 124 mA V =12V V = 12 V V =12V BAT INH WAKE N V = 0 V V = 5 V TXD SLP N V voltage on pin LIN limiting value with respect to GND, V and 40 - +40 V LIN BAT V WAKE N T virtual junction temperature limiting value 40 - +150 C vj 4. Ordering information Table 2. Ordering information 1 Type number Package Name Description Version TJA1021T/10 SO8 plastic small outline package 8 leads body width 3.9 mm SOT96-1 TJA1021T/20 TJA1021TK/10 HVSON8 plastic thermal enhanced very thin small outline package no leads SOT782-1 TJA1021TK/20 8 terminals body 3 3 0.85 mm 1 TJA1021T/10 and TJA1021TK/10: for the low slope version that supports baud rates up to 10.4 kBd (SAE J2602) TJA1021T/20 and TJA1021TK/20: for the normal slope version that supports baud rates up to 20 kBd. TJA1021 All information provided in this document is subject to legal disclaimers. NXP B.V. 2018. All rights reserved. Product data sheet Rev. 8 18 December 2018 2 of 25