TJA1124AHG/0Z - Quad LIN Transceiver | NXP Semiconductors
N.º da peça: TJA1124AHG/0Z ✓ AtivoTJA1124AHG/0Z Visão geral
A LIN transceiver is an interface integrated circuit that connects a microcontroller to a Local Interconnect Network bus. It converts microcontroller transmit commands into shaped LIN bus signals, receives bus states through high-impedance inputs, and transfers receive data to the host controller. LIN buses are commonly used for low-cost vehicle sub-networks involving sensors, switches, actuators, lighting, seat controls, and body electronics.
The TJA1124AHG/0Z supports four independent LIN channels, reducing the number of interface devices required in a multi-node vehicle body controller. Its internal pull-up resistors help simplify bus implementation, while the LIN output stage is designed to produce low-emission bus signals. The receiver paths report bus activity to a microcontroller through dedicated receive pins, allowing the host processor to determine LIN frame status.
The device is associated with an AEC-Q100 automotive qualification in distributor product information and an operating-temperature range of -40°C to 150°C junction temperature. Its 24-DHVQFN package is approximately 5.5 mm by 3.5 mm and includes an exposed thermal pad, supporting compact automotive controller layouts while providing a thermal path for the LIN output drivers.
Typical applications include automotive body-domain controllers, door modules, climate-control panels, lighting controllers, seat and switch assemblies, ambient-sensing nodes, and central comfort systems. Four channels are especially useful when several distributed LIN loads share one central ECU. Designers should maintain the required external baud-rate timing, pull-up resistor, bus capacitance, and termination values from the manufacturer datasheet.
This page combines the manufacturer datasheet and product-page information with pin-compatible family references, application guidance, and design checks for evaluating the TJA1124AHG/0Z in automotive LIN networks. Because the exact package pin names, electrical limits, and variant-specific behavior must be confirmed against the current NXP documentation before PCB release, use the pin-description and electrical-characteristics tables in the TJA1124 datasheet as the final engineering references.
Alternativas drop-in para TJA1124AHG/0Z — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
TJA1124AHG/1Z
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TJA1124CHG/1Z
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
SJA1124AHG/1Z
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TJA1124AHG/0Z Especificações
| Product Type | Quad LIN transceiver |
| Number of Channels | 4 channels |
| Transceiver Configuration | 4 transmit and 4 receive channels |
| Integrated Pull-Up Resistors | Yes |
| LIN Commander Termination | Enabled through internal termination resistors |
| Encapsulamento | 24-DHVQFN, 5.5 mm x 3.5 mm |
| Terminal Count | 24 terminals |
| Tipo de montagem | Surface mount |
| Automotive Qualification | AEC-Q100 |
| Temperatura de operação | -40°C to +150°C junction temperature |
Guia de Configuração de Pinos do TJA1124AHG/0Z 24-dhvqfn, 5.5 mm x 3.5 mm
Configuração de pinos para TJA1124AHG/0Z (pacote 24-dhvqfn, 5.5 mm x 3.5 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para TJA1124AHG/0Z.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TJA1124AHG/0Z é adequado para 6 aplicaçãos: Automotive Body Control Unit, Door and Seat Control Module, Lighting Control Module, Climate and Comfort Control, Automotive Switch and Sensor Hub, Central Comfort System.
Automotive Body Control Unit
The TJA1124AHG/0Z is well suited to an automotive body control unit that connects several LIN loads to one microcontroller. Four LIN channels reduce the number of interface packages required for door, lighting, switch, and convenience functions, while the integrated pull-up resistors simplify the bus network. Its 24-DHVQFN footprint measures about 5.5 mm by 3.5 mm, helping preserve board area in compact controllers. The designer should assign each channel only after checking the TJA1124 datasheet's terminal functions, electrical limits, termination behavior, and automotive qualification requirements.
Recomendado
Door and Seat Control Module
The TJA1124AHG/0Z can connect distributed door or seat functions to a central module through multiple LIN channels. A typical module might combine a door-switch node, seat-position sensor, ambient-light sensor, and motor control node on separate LIN sub-buses. Four channels provide a compact interface without requiring four physical transceiver packages. Integrated pull-up resistors support bus implementation, but the final external resistor and capacitor values must follow the baud rate and bus-capacitance guidance in the NXP TJA1124 datasheet.
Recomendado
Lighting Control Module
The TJA1124AHG/0Z fits lighting-control modules that interface with LIN-driven lamps, switches, and presence sensors. Its four-channel arrangement allows a single ECU to coordinate multiple lighting subnets while maintaining a consistent automotive bus interface. The LIN output stage shapes transmissions to reduce electromagnetic emissions, which is valuable when the module is installed near dense wiring harnesses and other communication equipment. Validate output rise time, bus timing, fault behavior, and protection requirements against the electrical-characteristics and application diagrams in the manufacturer datasheet.
Recomendado
Climate and Comfort Control
The TJA1124AHG/0Z is appropriate for climate and comfort-control ECUs that connect LIN-controlled fan, flap, sensor, switch, and seat-heating modules. Four integrated channels simplify the physical bus interface and keep the controller layout compact. Because automotive comfort systems can combine fast power-control outputs with diagnostic and sensing nodes, channel assignment should separate functions where appropriate and follow the datasheet's LIN timing, pull-up, and termination requirements. The AEC-Q100 designation supports automotive evaluation, while production suitability must be confirmed against the complete vehicle specification.
Recomendado
Automotive Switch and Sensor Hub
The TJA1124AHG/0Z can serve as the bus interface in a distributed switch or sensor hub where LIN nodes report switch positions and environmental measurements. Four receive paths permit the controller to monitor several low-speed nodes, while four transmit paths support command or diagnostic traffic. The integrated pull-up resistors reduce discrete-component count on the LIN side. Choose the appropriate baud rate and termination for each bus, observe the maximum bus-capacitance limit, and review low-power behavior so unused channels do not compromise system quiescent-current targets.
Recomendado
Central Comfort System
The TJA1124AHG/0Z fits a central comfort ECU that aggregates several LIN sub-networks for door locks, mirrors, windows, seats, and lighting. Consolidating four channels into one package can reduce PCB area and component handling compared with separate transceivers. The device's shaped LIN outputs and internal commander pull-up resistors support implementation of short automotive branches. Before layout approval, confirm every exposed-pad connection, supply decoupling point, bus termination value, and transceiver mode pin state in the current NXP package drawing and datasheet.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TJA1124AHG/0Z — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TJA1124AHG/1Z | TJA1124CHG/1Z | SJA1124AHG/1Z |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 24-DHVQFN (5.5 x 3.5 mm) | 24-DHVQFN - same package format | 24-DHVQFN - same package format | 24-DHVQFN - same package format |
| Transceiver Type | Quad LIN transceiver | Quad LIN transceiver | Quad LIN transceiver | Quad LIN transceiver with SPI interface |
| Channel Count | 4 channels | 4 channels | 4 channels | 4 channels |
Principais diferenciais
- Four LIN channels in one compact interface package (vs TJA1124CHG/1Z)
- Direct commander-interface option (vs SJA1124AHG/1Z)
- Documented automotive qualification (vs TJA1124AHG/1Z)
Notas de projeto
Place the TJA1124AHG/0Z close to the LIN connector and the protected wiring-harness entry point. Keep LIN traces short, route them away from sensitive clocks and analog inputs, use a continuous ground reference, and follow the manufacturer package drawing for the exposed thermal pad. Confirm every net against the TJA1124 pin-description table before layout release.
Use the supply and decoupling arrangement shown in the TJA1124 datasheet, including the recommended capacitor type, voltage rating, and placement. The four output drivers can create transient load on the vehicle supply, so verify the supply-network impedance and local energy-storage behavior across normal operation and LIN fault conditions. Do not select capacitors or resistor values without checking the specific variant's electrical limits.
The TJA1124AHG/0Z shapes LIN transmissions to reduce electromagnetic emissions, but PCB layout still determines practical EMC performance. Maintain the recommended bus geometry, avoid long stubs, keep return-current paths continuous, and observe common-mode-choke or protection-component guidance in the application schematic. Validate the completed module with the intended harness and load configuration.
Do not treat the /0Z and /1Z ordering suffixes as identical without checking the variant-specific functions. Likewise, the SJA1124AHG/1Z uses an SPI host interface and may not support the same firmware as a direct commander-interface device. Compare terminal names, mode settings, low-power behavior, electrical limits, and exposed-pad requirements before approving a substitute.
Informações de conformidade
AEC-Q100 qualification and the -40°C to +150°C junction-temperature range are identified for TJA1124AHG/0Z. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from current manufacturer material declarations.
