TJA1027T/20/2Z - LIN 2.2A Automotive Transceiver | NXP
Teilenummer: TJA1027T/20/2Z ✓ AktivTJA1027T/20/2Z Übersicht
A LIN transceiver is the physical-layer interface between a microcontroller-based LIN protocol controller and a low-speed vehicle network. It converts the controller's transmit and receive signals into the standardized LIN bus waveform and presents received bus data to the controller. The TJA1027 belongs to the broader hierarchy of automotive network transceivers, bus-interface ICs, interface ICs, and semiconductors.
The TJA1027 is optimized for electromagnetic-emission control and includes an internal pull-high arrangement on the LIN output. According to the NXP manufacturer datasheet, its transmit data stream is converted into an optimized bus signal intended to minimize electromagnetic emissions. The device also provides pin compatibility with the TJA1020 and TJA1021, allowing evaluation of functional alternatives within the same 8-pin footprint.
Automotive qualification information, exact absolute maximum ratings, current consumption, slew-rate limits, and detailed timing values should be confirmed in the manufacturer datasheet before a production release. The /20 ordering variant identifies a specific temperature and packaging configuration, while /2Z is the reeled ordering suffix. These ordering codes should not be changed without checking the associated NXP ordering information and labeling requirements.
Typical applications include LIN sub-networks in body-control modules, seat and door controllers, climate-control panels, lighting modules, sensor gateways, and other automotive electronic control units. Because LIN is a single-wire, low-speed network, the transceiver also needs correct board-level bus termination, grounding, protection, and decoupling to maintain signal integrity in electrically harsh vehicle environments.
Keep the transceiver supply and ground connections compact on the PCB, and route the LIN connection to minimize sensitive-loop area. Add the manufacturer's recommended decoupling and protection components near the device, and verify that the external bus network complies with LIN 2.2A and SAE J2602 timing requirements.
This page combines exact product facts, interface standards, pin-compatible alternatives, comparison guidance, and practical PCB considerations to support component selection, cross-reference work, and PCB design for LIN 2.2A automotive networks.
Drop-in-Alternativen für TJA1027T/20/2Z – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit TJA1027T/20/2Z (gleiche Bauform und Footprint) – abweichend in Package, Product Type, Pin Compatibility, LIN Compliance, Maximum Baud Rate.
TJA1020
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TJA1021T/20/C
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →TJA1022TK
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →TJA1029T/2Z
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →MC33662
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TJA1027T/20/2Z Technische Daten
| Product Type | LIN 2.2A/SAE J2602 automotive transceiver |
| Supply Voltage Range | 5 V to 18 V |
| Maximum LIN Baud Rate | 20 kBd |
| LIN Compliance | LIN 2.0, LIN 2.1, LIN 2.2, and LIN 2.2A |
| Automotive Network Standard | SAE J2602 |
| ISO Standard | ISO 17987-4:2016 for 12 V systems |
| Transceiver Configuration | 1/1 half-duplex LIN transceiver |
| Gehäuse | 8-pin SO package |
| Montageart | Surface mount |
| Bus Output Pull-High | Internal termination resistor |
| Bus Signal Optimization | Optimized waveform for minimized electromagnetic emissions |
| Pin Compatibility | Compatible with TJA1020 and TJA1021 |
TJA1027T/20/2Z 8-pin so package Pinbelegungsleitfaden
Pinbelegung für TJA1027T/20/2Z (8-pin so package-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für TJA1027T/20/2Z.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
TJA1027T/20/2Z ist geeignet für 6 Anwendungs: Automotive Body-Control LIN Network, Door and Seat Control Module, Climate-Control Panel Interface, Automotive Lighting Control Module, Vehicle Sensor Gateway, Compact Automotive ECU.
Automotive Body-Control LIN Network
The TJA1027T/20/2Z fits a body-control module that connects door, seat, lighting, or climate-control nodes through a LIN sub-network. Its 5 V to 18 V operating range suits 12 V vehicle environments, while communication up to 20 kBd covers LIN 2.0 through LIN 2.2A and SAE J2602 applications. The 8-pin SO package supports compact controller layouts, and the emission-optimized bus waveform helps reduce conducted and radiated interference. Place the transceiver close to the LIN connector and protection network, use a low-impedance supply path, and verify the external bus termination and wake-up behavior against the complete module specification.
Empfohlen
Door and Seat Control Module
A LIN-connected door or seat controller benefits from the TJA1027T/20/2Z because the device provides the physical interface between a local protocol controller and the single-wire LIN bus. The 20 kBd maximum baud rate is suitable for typical in-vehicle sub-networks, while LIN 2.2A and SAE J2602 support targets current automotive network requirements. Its 8-pin SO package leaves routing space for the processor and supporting components in a compact module. The PCB should preserve a short LIN return path, include the required bus termination, and provide suitable supply decoupling and transient protection for motor, switch, and sensor loads connected around the control unit.
Empfohlen
Climate-Control Panel Interface
The TJA1027T/20/2Z is appropriate for a climate-control panel or head-unit interface that uses LIN for distributed buttons, motors, and sensors. The transceiver handles communication at rates up to 20 kBd and supports LIN 2.2A, allowing a low-cost bus connection without a separate physical-layer network device. Because the LIN bus is susceptible to vehicle electrical noise, the design should use a controlled ground reference, minimized connector-to-transceiver trace length, appropriate bus termination, and protection suitable for the vehicle environment. The 5 V to 18 V supply range also allows the transceiver to operate from the regulated power available in a conventional 12 V automotive controller.
Empfohlen
Automotive Lighting Control Module
A LIN lighting controller can use the TJA1027T/20/2Z to connect a low-cost microcontroller to lamps, switches, and occupancy-related nodes over a single-wire LIN network. The device's optimized transmit waveform is intended to minimize electromagnetic emissions, which is useful when the controller also contains switching power stages or drives nearby sensitive communication circuits. Keep the LIN trace physically small, route it away from high-current switching nodes, and place protection close to the connector. Verify that the module's supply, ground, wake-up, and bus termination design meets the selected LIN network configuration and the vehicle manufacturer's EMC requirements.
Empfohlen
Vehicle Sensor Gateway
The TJA1027T/20/2Z can provide the LIN physical layer for a gateway that collects data from low-cost automotive sensors. Rates up to 20 kBd are suitable for LIN sub-networks carrying switch, position, temperature, and presence information, and the device supports the LIN 2.2A and SAE J2602 standards named in the manufacturer documentation. Its 8-pin SO package minimizes board area in compact sensor modules. The implementation should account for the single-wire bus topology, provide the specified termination, maintain a common ground with the protocol controller, and isolate sensitive sensor references from LIN return-current and connector transients.
Empfohlen
Compact Automotive ECU
The TJA1027T/20/2Z is useful in compact electronic control units that need a standardized LIN node alongside a host microcontroller. The 5 V to 18 V supply range accommodates regulated automotive power rails, and the 8-pin SO package simplifies assembly in space-constrained assemblies. The NXP device converts the protocol controller's transmit data into an emission-optimized LIN waveform while supporting standards through LIN 2.2A and SAE J2602. During schematic review, verify wake-up behavior, supply sequencing, exposed-ground requirements, bus termination, and diagnostic coverage. During layout review, prioritize short supply and ground paths and keep the LIN connection away from high-slope switching nodes.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TJA1027T/20/2Z – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TJA1020 | TJA1021 | TJA1022 | TJA1029 | MC33662 |
|---|---|---|---|---|---|---|
| Package | 8-pin SO | 8-pin SO | 8-pin SO | 8-pin SO | 8-pin SO | 8-pin SO |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Motorola |
| Device Type | LIN 2.2A/SAE J2602 transceiver | LIN transceiver | LIN transceiver | LIN transceiver | LIN transceiver | LIN transceiver |
| Documented Pin Compatibility | Pin-compatible with TJA1020 and TJA1021 | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Updated LIN 2.2A and SAE J2602 positioning (vs. TJA1020)
- Documented 20 kBd in-vehicle sub-network operation (vs. MC33662)
- Vehicle-network compliance coverage (vs. TJA1021)
Designhinweise
Route the LIN connection as a short, direct trace from the TJA1027T/20/2Z to the connector or bus interface, and keep it away from high-current switching paths. A compact return area reduces susceptibility to coupled noise and helps the emission-optimized transmit waveform retain its intended bus shape. Place the protection network at the connector rather than beside the transceiver so surge current is diverted before reaching the IC.
Follow the manufacturer recommendations for supply decoupling and ground connection. Keep the decoupling capacitor path between the transceiver supply and ground pins short, with low loop area and no unnecessary series resistance. Provide a continuous ground reference for the LIN bus and protocol controller, and avoid splitting the ground plane beneath the device or its signal path. These practices are particularly important when the module also operates switching power stages or motor drivers.
Do not treat the documented pin compatibility of the TJA1027, TJA1020, TJA1021, TJA1022, TJA1029, and MC33662 as proof that every electrical parameter is identical. Before approving a substitute, check operating voltage, maximum baud rate, LIN-version support, timing, wake-up behavior, temperature grade, qualification, and ordering code. Confirm the eight pin names in the current NXP datasheet rather than relying on a generic SO-8 drawing.
The NXP manufacturer datasheet states that the transmit data stream is converted into an optimized bus signal shaped to minimize electromagnetic emissions. Preserve that performance by using the recommended bus topology and termination, avoiding unnecessary stubs, and keeping the LIN trace compact. Validate radiated and conducted emissions in the final module because connector cables, adjacent converters, and protection components can materially affect the complete system result.
Compliance-Informationen
The NXP documentation identifies LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016. Specific environmental-material declarations and AEC-Q100 qualification status require confirmation from the current manufacturer product documentation.
