TJA1145A-EVB - TJA1145A High-Speed CAN Transceiver Evaluation Board | NXP
N.º de pieza: TJA1145A-EVB ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $88.93 | $88,93 |
| 5 | $82.5 | $412,50 |
| 10 | $76.2 | $762,00 |
| 25 | $72.64 | $1.816,00 |
| 50 | $68.1 | $3.405,00 |
TJA1145A-EVB Descripción general
A CAN transceiver is the physical-layer interface between a microcontroller's CAN protocol controller and the differential CAN bus. The TJA1145A supports classic CAN and CAN FD at data rates up to 5 Mbit/s, with selective wake-up and partial networking that lets an ECU remain quiescent on the bus until addressed, an important feature for automotive networks that must stay electrically present but draw micro-amps when idle. The transceiver is AEC-Q100 qualified, operates from a 4.5 V to 28 V supply (with 40 V load-dump tolerance), and integrates bus fault diagnostics.
Key features exposed on the EVB include the high-speed CAN bus drivers, integrated 5 V LDO output for the host MCU, SPI register access for partial-networking configuration, hardware reset and wake inputs, and pin-selectable CAN HS or CAN FD modes. The board exposes the CANH/CANL differential pair on screw terminals for direct connection to a real bus or a CAN analyzer. Two user LEDs reflect TX/RX activity and power status.
Typical applications include rapid prototyping of automotive body controllers, gateway ECUs, partial-networking nodes, industrial CAN-FD sensor backbones, and bench characterization of TJA1145A sleep current, wake-up timing, and bus fault behavior. The EVB lets engineers evaluate algorithm, register map, and bus behavior before committing to a PCB spin.
Design consideration: when measuring sleep or standby current on the EVB, isolate the USB-to-SPI bridge supply so its quiescent draw does not mask the TJA1145A's microamp-level sleep signature. The board's Arduino Uno headers supply the host MCU; check jumper settings so the MCU is not back-powered through the SPI lines.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para TJA1145A-EVB — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
TJA1445A-EVB
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TJA1152-EVB
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TJA1153-EVB
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TJA1145A-EVB Especificaciones (publicadas por el fabricante)
| Product Type | Evaluation / Development Board |
| Supported Device | TJA1145A high-speed CAN transceiver |
| Función | CAN FD transceiver evaluation with partial networking |
| Bus Protocol | CAN, CAN FD up to 5 Mbit/s |
| Host Interface | SPI (via on-board USB-to-SPI bridge or Arduino Uno headers) |
| Bus Interface | Differential CANH, CANL on screw terminals |
| Tensión de alimentación | 4.5 V to 28 V (per TJA1155A device rating) |
| Arduino Compatibility | Pin-compatible with Arduino Uno headers |
| NXP EVB Family Compatibility | Drop-in compatible with S32K1xx evaluation boards |
| On-board CAN Termination | 120 ohm, jumper-selectable |
| Status Indicators | Power LED, TX/RX activity LEDs |
| Temperatura de funcionamiento | -40C to +125C (per TJA1145A device) |
| Board Form Factor | Arduino Uno shield-style PCB |
| Manufacturer | NXP Semiconductors |
| Estado RoHS | Compliant (per NXP product page) |
Interfaces y conectores de TJA1145A-EVB
TJA1145A-EVB expone las siguientes interfaces y conectores según lo publicado por el fabricante: Entrada de potencia, Expansión / Buses. El patillaje de la cabecera de expansión, la numeración de pines de los conectores y los límites eléctricos se definen en la documentación del fabricante.
| Entrada de potencia | 4.5 V to 28 V (per TJA1155A device rating) |
| Expansión / Buses | 120 ohm, jumper-selectable |
Consulte la documentación del fabricante para ver el patillaje completo del conector de expansión y la numeración de pines del conector.
Características de potencia y térmicas
| Entrada de potencia | 4.5 V to 28 V (per TJA1155A device rating) |
| Temperatura de funcionamiento | -40C to +125C (per TJA1145A device) |
Parámetros de entrada de potencia y térmicos para TJA1145A-EVB según lo publicado por el fabricante.
Aplicaciones típicas
TJA1145A-EVB es adecuado para 6 aplicacións: Automotive Body Controller CAN-FD Node Prototyping, Partial-Networking Selective Wake-Up Evaluation, Industrial CAN-FD Sensor Backbone Development, Automotive Gateway ECU Development, Bench Characterization of Bus Fault and EMC, Register-Map and Driver Development Reference.
Automotive Body Controller CAN-FD Node Prototyping
The TJA1145A-EVB lets automotive engineers prototype a CAN-FD body-control node in hours rather than weeks. The TJA1145A's 5 Mbit/s CAN-FD support, AEC-Q100 Grade 1 qualification, and 4.5 V to 28 V supply (40 V load-dump tolerant) match the harsh electrical environment of a 12 V automotive bus. Stacking the EVB onto a S32K1xx EVB provides a complete node stack with the TJA1145A physical layer, the S32K1 MCU, and partial-networking software to verify selective-wake behavior against a real body controller network.
Recomendado
Partial-Networking Selective Wake-Up Evaluation
The TJA1145A-EVB is purpose-built for evaluating NXP's partial-networking selective wake-up, which lets an ECU stay quiescent on the bus until addressed with a matching wake-up frame. The on-board USB-to-SPI bridge exposes the TJA1145A's register map so engineers can configure wake identifiers and measure sleep current down to the device's microamp-level quiescent draw. Compared to a discrete transceiver, the EVB isolates the TJA1145A's partial-networking supply so accurate standby measurements are possible.
Recomendado
Industrial CAN-FD Sensor Backbone Development
Industrial CAN-FD backbones for machinery, robotics, and process control benefit from the TJA1145A-EVB's 5 Mbit/s throughput and AEC-Q100 ruggedness. The board's 120-ohm jumper-selectable termination and screw-terminal CANH/CANL access let engineers attach it to a real industrial bus segment and capture traffic with a CAN analyzer. Stacking it onto a S32K1xx EVB delivers a complete CAN-FD sensor node with deterministic latency for control loops.
Recomendado
Automotive Gateway ECU Development
Gateway ECUs that bridge CAN, CAN-FD, and other in-car buses can be prototyped using a TJA1145A-EVB per CAN channel. The EVB's SPI control interface allows a host MCU to configure the TJA1145A's filters, wake identifiers, and bus-fault diagnostics independently per channel, replicating gateway behavior. Compared to a discrete bench setup, the EVB provides a production-representative reference for the TJA1145A's bus-fault tolerance and loopback diagnostic modes.
Recomendado
Bench Characterization of Bus Fault and EMC
Bench characterization of CAN bus fault behavior (short to battery, short to ground, loss of termination) is a primary use of the TJA1145A-EVB. Engineers can inject faults on the screw terminals and observe the TJA1145A's diagnostic registers via SPI, while the on-board LEDs reflect TX/RX activity and power status. The TJA1145A's AEC-Q100 Grade 1 EMC performance and integrated bus fault protection make the EVB a reliable platform for validating fault-handling firmware.
Recomendado
Register-Map and Driver Development Reference
Driver and firmware teams use the TJA1145A-EVB as a reference platform when writing SPI register-access drivers for the TJA1145A. The USB-to-SPI bridge lets a PC read and write every TJA1145A register without an external MCU, which shortens bring-up of the partial-networking and selective-wake code before integration with application firmware. Compared to point-to-point wiring, the EVB provides clean signal integrity and a known-good schematic.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TJA1145A-EVB — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TJA1445A-EVB | TJA1152-EVB | TJA1153-EVB |
|---|---|---|---|---|
| Package | Arduino Uno shield (EVB) | Arduino Uno shield (EVB) - same | Arduino Uno shield (EVB) - same | Arduino Uno shield (EVB) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Underlying Transceiver IC | TJA1145A (HS CAN, partial networking) | TJA1445A (next-gen HS CAN) | TJA1152 (HS CAN with 5V LDO) | TJA1153 (HS CAN, no partial NW) |
| CAN FD Support | Yes, up to 5 Mbit/s | Yes, up to 5 Mbit/s | Yes, up to 5 Mbit/s | Yes, up to 5 Mbit/s |
| Partial Networking | Yes (selective wake-up) | Yes (selective wake-up) | No | No |
| AEC-Q100 Grade | Grade 1 | Grade 1 | Grade 1 | Grade 1 |
| Supply Voltage | 4.5 V to 28 V (40 V load-dump) | 4.5 V to 28 V | 4.5 V to 28 V | 4.5 V to 28 V |
| Arduino Uno Compatible | Yes | Yes | Yes | Yes |
| S32K1xx EVB Compatible | Yes | Yes | Yes | Yes |
| On-board USB-to-SPI | Yes | Yes | Yes | Yes |
Diferenciadores clave
- Evaluates TJA1145A with full partial-networking and selective wake-up (frente a TJA1152-EVB)
- Drop-in Arduino Uno pinout for S32K1xx EVBs (frente a TJA1445A-EVB)
- Mature TJA1145A silicon with extensive automotive field history (frente a TJA1153-EVB)
Notas de diseño
When measuring the TJA1145A's sleep current on the EVB, isolate the USB-to-SPI bridge supply using the on-board jumper so its mA-level quiescent draw does not mask the TJA1145A's microamp-level sleep signature. According to the NXP datasheet, the TJA1145A's selective wake-up sleep current is in the low microamp range; without isolation, the measurement is dominated by the bridge IC.
Verify the EVB's 120-ohm termination jumper before attaching to a real CAN bus. A live bus already terminated at both ends will produce a parallel-resistance fault if the EVB's termination is also enabled. According to the EVB user manual, the termination jumper is the only bus-impedance setting; default is enabled for standalone bench use and should be disabled when stacking onto a bus that already has termination.
Do not back-power the EVB through the Arduino Uno SPI pins when the host MCU board is also supplying the bus. According to the NXP TJA1145A-EVB datasheet, jumper settings control which rail feeds the TJA1145A; check the supply-source jumper so the EVB and host do not source current into each other through the SPI lines, especially when measuring low sleep currents.
Información de cumplimiento
RoHS and REACH compliance per NXP product page. AEC-Q100 qualification applies to the underlying TJA1145A transceiver IC, not the EVB PCB itself.