TJA1044GTKZ - High-Speed CAN Transceiver, 5Mbps, HVSON-8 | NXP
料号： TJA1044GTKZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.3 | $130.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.86 | $860.00 |
| 2,500 | $0.72 | $1,800.00 |
TJA1044GTKZ 概述
A CAN transceiver is a physical-layer device that converts the digital transmit/receive signals of a CAN controller into the differential voltage levels required by the CAN bus standard (ISO 11898-2:2016). As a member of the high-speed CAN transceiver category, the TJA1044 sits at the bottom of the in-vehicle networking hierarchy: microcontroller -> CAN controller (typically integrated in the MCU) -> CAN transceiver (TJA1044) -> differential CAN bus. It is foundational to automotive and industrial communication networks where reliable, deterministic messaging is critical.
Key features include a very low-current Standby mode with remote wake-up via a wake-up pattern (WUP) recognition per ISO 11898-2:2016, bus-fault detection and protection against -27 V to +40 V automotive transients, thermal shutdown, and an undervoltage detector on VCC and VIO. The transceiver operates from a single 5 V supply (VCC), with a separate VIO pin for direct interfacing to 3.3 V or 5 V microcontrollers without level shifters.
The TJA1044 uses a fully ISO 11898-2:2016 compliant driver and receiver with dominant-timeout protection to prevent a faulty controller from permanently clamping the bus. The integrated slope-control function (via the STB/NRM pin) and low Electromagnetic Emission (EME) design simplify EMC compliance in dense automotive modules. The exposed thermal pad (EP) of the HVSON-8 package is essential for dissipating heat during sustained dominant transmission, ensuring reliable operation across the -40 C to +150 C automotive Grade-1 temperature range.
Typical applications include body control modules, gateway ECUs, powertrain ECUs, battery management systems (BMS), ADAS sensor ECUs, industrial CAN nodes, and telematics control units. Its 5 Mbps capability makes it suitable for CAN FD networks carrying larger payload data, while Standby mode enables CAN partial networking for ECUs that must wake only on recognized WUP messages.
When designing with the TJA1044, terminate the bus with a 120 ohm split-terminator network (RT = 60 ohm + 60 ohm + 4.7 nF common-mode cap) rather than a single 120 ohm resistor, which improves EMI/ESD immunity and DC stability. Place a 100 nF decoupling capacitor close to VCC and ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation.
This page synthesizes distributor pricing, drop-in alternatives, comparison parameters and practical design notes not found in the standalone datasheet PDF, giving a one-stop reference for component selection.
直接替换替代料： TJA1044GTKZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TJA1044GT/3Z
✅ 直接替换📋 参考替代料（不在目录中）
NCV7428D10R2G
✅ 直接替换📋 参考替代料（不在目录中）
TCAN1044A-Q1
✅ 直接替换📋 参考替代料（不在目录中）
NCA1044
✅ 直接替换📋 参考替代料（不在目录中）
SCAN1044T/NXP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TJA1044GTKZ 规格参数
| Product Type | High-Speed CAN Transceiver (Mantis family) |
| Data Rate (max) | 5 Mbps (CAN FD) |
| Number of Drivers/Receivers | 1/1 |
| Supply Voltage (VCC) | 4.75 V to 5.25 V |
| Logic Supply Voltage (VIO) | 2.8 V to 5.25 V |
| 工作温度 | -40 C to +150 C (AEC-Q100 Grade 1) |
| Common-Mode Bus Voltage | -27 V to +40 V |
| 封装 | HVSON-8 (3 mm x 3 mm) with Exposed Pad |
| 安装类型 | Surface Mount |
| Protocol | ISO 11898-2:2016 (CAN 2.0A, 2.0B, CAN FD) |
| Automotive Grade | AEC-Q100 qualified |
| Dominant Timeout | Yes (prevents bus latch-up) |
| Wake-Up Pattern (WUP) | Yes (per ISO 11898-2:2016) |
| RoHS 状态 | Compliant |
TJA1044GTKZ 引脚配置
| 引脚 1 | TXD — Transmit data input from CAN controller (logic-level referenced to VIO) |
| 引脚 2 | GND — Ground reference for the IC and bus |
| 引脚 3 | VCC — 5 V analog supply for the bus driver/receiver |
| 引脚 4 | RXD — Receive data output to CAN controller (logic-level referenced to VIO) |
| 引脚 5 | VIO — Logic-level supply for digital pins (2.8 V to 5.25 V) |
| 引脚 6 | CANL — Low-level CAN bus line |
| 引脚 7 | CANH — High-level CAN bus line |
| 引脚 8 | STB — Standby / Normal mode control input (high = standby) |
| 引脚 9 | EP — Exposed thermal pad - solder to ground for thermal dissipation |
典型应用
TJA1044GTKZ 适用于 7 应用s: Automotive Body Control Module (BCM), CAN Gateway ECU / Central Networking, Electric Vehicle Battery Management System (BMS), ADAS Sensor Node (Camera / Radar ECU), Industrial CANopen / DeviceNet Slave, In-Vehicle Infotainment Head Unit, Telematics Control Unit (TCU) and V2X Gateway.
Automotive Body Control Module (BCM)
The TJA1044GTKZ is a strong fit for body control modules that orchestrate lighting, mirrors, wipers, and door locks over a high-speed CAN backbone. With 5 Mbps CAN FD capability it transports aggregated body-domain messages without bus saturation, and the -27 V to +40 V bus-pin tolerance handles 12 V automotive jump-start and load-dump transients without external TVS diodes. The integrated Standby mode with WUP recognition enables selective wake-up so dormant nodes can sleep in the microamp range. Place it next to the system MCU with a 100 nF VCC decoupling cap and a 120 ohm split-terminator at the bus ends; the exposed pad must be soldered to a 1 cm squared copper pour for sustained-dominant thermal relief.
推荐
CAN Gateway ECU / Central Networking
Gateway ECUs bridge CAN and CAN FD sub-networks across vehicle domains (powertrain, chassis, body, ADAS) and require robust, high-throughput transceivers that can pass stringent automotive EMC tests. The TJA1044GTKZ's ISO 11898-2:2016 compliance, very low EME, and high EMS tolerance make it a drop-in fit at each gateway port. Its 5 Mbps payload rate keeps gateway latency low even when aggregating ADAS sensor streams. Position the transceiver at each CAN segment edge with a 60 ohm + 60 ohm split termination plus a 4.7 nF common-mode capacitor to optimise DC stability and radiated emissions.
推荐
Electric Vehicle Battery Management System (BMS)
In a battery management system, the TJA1044GTKZ connects each cell-monitoring slave to the CAN-FD backbone that links the battery pack to the vehicle's VCU. Its 40 V bus-pin tolerance rejects inverter-induced voltage ringing on the shared chassis harness, and AEC-Q100 Grade 1 qualification supports operation up to +150 C junction near pack heaters. Standby mode lets individual slave boards sleep when the bus is silent, then wake on a recognised WUP. Use a 100 nF X7R decoupling cap on VCC and keep CANH/CANL traces as a tightly coupled 100 ohm differential pair to the bus connector.
推荐
ADAS Sensor Node (Camera / Radar ECU)
ADAS radar and camera ECUs emit large CAN-FD frames carrying object lists, video metadata, and sensor status, where the TJA1044GTKZ's 5 Mbps CAN-FD rate prevents bus saturation. Its low EMI (EME) signature protects the tightly integrated RF stages of the same ECU from in-band interference, and the dominant-timeout function prevents a faulty controller from latching the bus in fault conditions. In radar ECUs the HVSON-8 footprint fits next to the radar MMIC; expose the thermal pad to a copper island of at least 0.5 cm squared.
推荐
Industrial CANopen / DeviceNet Slave
Beyond automotive, the TJA1044GTKZ is widely used in industrial CANopen and DeviceNet slave devices such as motor controllers, I/O blocks, and servo drives. The wide -40 C to +150 C temperature window and 40 V bus fault tolerance allow deployment on factory floors and outdoor cabinets where 24 V DC distribution causes inductive transients. Its 5 Mbps rate comfortably exceeds the 1 Mbit/s CANopen maximum and supports long-term migration to CAN-FD or CAN XL networks in industrial plants.
推荐
In-Vehicle Infotainment Head Unit
Modern head units aggregate telematics, cluster, and rear-seat entertainment traffic over one or more CAN-FD channels, where the TJA1044GTKZ isolates the noisy infotainment ground from the high-current chassis harness via its robust bus-pin ESD (8 kV HBM, IEC 61000-4-2). The VIO pin lets the part sit alongside 1.8 V or 3.3 V application processors without glue logic, while the exposed pad provides thermal margin for body-control messages during chassis relay switching. Mount it near the head-unit CAN connector with a 100 nF cap on VCC and a ferrite on the bus feed for EMI suppression.
推荐
Telematics Control Unit (TCU) and V2X Gateway
TCUs and V2X gateways route CAN-FD traffic between the in-vehicle network and the external cloud, and the TJA1044GTKZ's small HVSON-8 footprint lets designers place one transceiver per CAN domain in space-constrained 4G/5G-V2X boxes. Its low standby current helps the TCU stay connected to the OEM back-end while drawing minimum quiescent current, and the -27 V to +40 V common-mode range survives cranking and reverse-battery events in 12 V systems. Pair with a SIM7600 or similar LTE-V2X modem and an automotive-grade TC397 MCU for full gateway functionality.
推荐
推荐产品汇总
工程参考数据： TJA1044GTKZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TJA1044GT/3Z | NCV7428D10R2G | TCAN1044A-Q1 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | onsemi | Texas Instruments |
| Package | HVSON-8 (3x3) | HVSON-8 (3x3) - same | HVSON-8 with EP - same | HVSON-8 (DRB0014A) - same |
| Max Data Rate | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) |
| Operating Temperature | -40 C to +150 C | -40 C to +150 C | -40 C to +125 C (Grade 0 with -Q1) | -40 C to +125 C |
| Automotive Grade (AEC-Q100) | Yes (Grade 1) | Yes (Grade 1) | Yes (Grade 1 / 0 depending on variant) | Yes (Grade 1) |
关键差异点
- High-temperature AEC-Q100 Grade 1 (-40 C to +150 C) operation in HVSON-8 （对比 TCAN1044A-Q1)
- Pin-and-pin-footprint compatible cross-brand alternatives （对比 onsemi NCV7428D10R2G)
- Low-power Standby with WUP for partial networking （对比 NXP TJA1050)
设计说明
Use a split termination (RT = 60 ohm + 60 ohm with a 4.7 nF common-mode capacitor to ground) instead of a single 120 ohm bus termination - this is mandated by ISO 11898-2:2016 and dramatically improves DC stability, EMI, and ESD immunity. Route CANH and CANL as a tightly coupled differential pair with 100 ohm controlled impedance, keep them symmetrical and away from switching nodes by at least 3W spacing. Place the 100 nF VCC decoupling capacitor within 3 mm of the IC, and connect the exposed thermal pad to a copper pour of at least 0.5 square cm to dissipate dominant-state bus-clamping heat.
Decouple both VCC (5 V analog) and VIO (logic level 2.8 V to 5.25 V) with separate 100 nF X7R ceramic capacitors placed close to their respective pins. VCC can drop to 4.75 V minimum while still maintaining full TJA1044GTKZ electrical performance; the part enters a deterministic undervoltage reset below that threshold. Add a bulk-tant 4.7 uF to 10 uF on the VCC rail near the transceiver to hold up against simultaneous bus-dominant transients.
Although the TJA1044GTKZ's standby current is in the microamp range, dominant bus clamping in a fault can dissipate tens of milliamps continuously. With thermal resistance theta_JA around 35-45 C/W on a small HVSON-8 board, the junction temperature rises linearly with dissipation, so the exposed pad must be soldered to a sizeable copper area (>=0.5 cm squared on a 1 oz board) to maintain the +150 C automotive Grade-1 limit. Always verify worst-case thermal loads for your fault-management strategy.
Do not confuse the 'TJA1044GTK' and 'TJA1044GTKZ' - the 'Z' is mandatory for NXP's tape-and-reel automotive ordering code; sourcing without 'Z' may yield partial reels or sample packs. Check the NXP datasheet packaging code table before placing a purchase order. Another pitfall: do not assume the TJA1044GTKZ's STB pin is identical to the older TJA1050's S pin - logic levels, internal pull-ups, and wake-up timing differ; always refactor firmware when migrating between Mantis and older TJA families.
合规信息
AEC-Q100 Grade 1 qualified per NXP product page. RoHS and REACH compliant per NXP's product environmental compliance data. Halogen-free status not explicitly stated in verified web data - confirm via NXP's latest Product Compliance Report before committing to halogen-free assembly lines.
