TJA1052IT/2Y - Isolated High-Speed CAN Transceiver | NXP
MPN: TJA1052IT-2Y ✓ فعالTJA1052IT-2Y جائزہ
What is an isolated CAN transceiver? A CAN transceiver is the physical-layer bridge between a CAN controller (typically embedded in a microcontroller) and the differential CAN bus lines (CANH/CANL). A galvanically isolated version inserts a high-voltage barrier - here implemented via on-chip capacitive coupling - between the logic domain and the bus domain, breaking ground loops and protecting low-voltage MCU I/O from high-voltage transients common in automotive 12 V/24 V powertrain systems and industrial installations.
Key features of the TJA1052IT/2Y include 1/1 unidirectional channel count, 2.5 kVrms isolation voltage rating, 5 Mbps maximum data rate, a standby mode for low quiescent current, and compatibility with 1.8 V and 3.3 V controller logic via separate VIO/VCC rails. The device is specifically targeted at Electric Vehicles (EV), Hybrid Electric Vehicles (HEV), and other automotive applications where high-speed CAN communication must coexist with high-voltage battery and inverter systems.
Typical applications include EV/HEV battery management system (BMS) communication gateways, on-board chargers (OBC), traction inverter CAN interfaces, industrial CAN bus nodes requiring reinforced insulation, and isolated debug or service interfaces for automotive ECUs. When designing with the TJA1052IT/2Y, engineers should provide local decoupling on both the logic-side and bus-side supplies, observe creepage/clearance for the 2.5 kV isolation barrier, and verify the standby-mode behavior against the system power-state diagram.
This page synthesizes distributor pricing, drop-in alternatives, and practical isolation-layout design notes not consolidated in the standalone manufacturer datasheet.
کے لیے ڈراپ اِن متبادل TJA1052IT-2Y — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں TJA1052IT-2Y (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Data Rate, Operating Temperature, Package, Protocol.
TJF1052IT/5Y
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →TJA1052IT/5Y
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TJA1052IT/5
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ISO1042DW
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MAX14879AWE+
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
TJA1052IT-2Y تفصیلات
| Type | CAN Transceiver, Isolated |
| Protocol | CAN 2.0B / CAN FD |
| Number of Drivers/Receivers | 1/1 |
| ڈیٹا ریٹ | 5 Mbps (max) |
| Supply Voltage (VCC) | 3 V to 5.25 V |
| Supply Voltage (VIO) | 1.8 V / 3.3 V (logic side) |
| Isolation Voltage | 2500 Vrms |
| Isolation Technology | Capacitive (galvanic, on-chip) |
| Channel Type | Unidirectional |
| آپریٹنگ درجہ حرارت | -40 C to +125 C |
| پیکیج | 16-pin SO (SOIC-16, 300 mil) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
| ہیلوجن فری | Compliant (per datasheet cross-reference listing) |
| Packaging | Tape & Reel (T/R) |
TJA1052IT-2Y پن کنفیگریشن
| پن 1 | VCC — Bus-side supply voltage (3 V to 5.25 V) |
| پن 2 | GND_BUS — Ground reference for bus side |
| پن 3 | VSUP — Battery / bus supply input (12 V/24 V system rail) |
| پن 4 | STBY — Standby control input (logic-side domain) |
| پن 5 | NC — Not connected (per datasheet layout recommendation) |
| پن 6 | NC — Not connected (per datasheet layout recommendation) |
| پن 7 | TXD — Transmit data input from CAN controller (logic side) |
| پن 8 | VIO — Logic-side I/O supply (1.8 V / 3.3 V) |
| پن 9 | GND_LOGIC — Ground reference for logic side |
| پن 10 | RXD — Receive data output to CAN controller (logic side) |
| پن 11 | CANL — CAN bus low-side line (bus side) |
| پن 12 | CANH — CAN bus high-side line (bus side) |
| پن 13 | GND_BUS — Ground reference for bus side (second bond pad for creepage) |
| پن 14 | NC — Not connected (per datasheet layout recommendation) |
| پن 15 | NC — Not connected (per datasheet layout recommendation) |
| پن 16 | NC — Not connected (per datasheet layout recommendation) |
عام استعمالات
TJA1052IT-2Y کے لیے موزوں ہے 7 ایپلیکیشنs: Electric Vehicle (EV) Battery Management System (BMS) Communication, On-Board Charger (OBC) CAN Interface, Traction Inverter / Motor Controller CAN Interface, Industrial Isolated CAN Bus Node, Automotive ECU Service / Diagnostic Interface, Isolated CAN Repeater / Bridge, Renewable Energy / Solar Inverter CAN Telemetry.
Electric Vehicle (EV) Battery Management System (BMS) Communication
The TJA1052IT/2Y's 2500 Vrms galvanic isolation matches the common-mode voltage stress seen between a high-voltage traction battery stack (often 400 V or 800 V) and a low-voltage (12 V) BMS master MCU. Its 5 Mbps CAN/CAN FD capability supports high-speed cell-balancing telemetry and module-to-module BMS handshakes in EV packs. Per the NXP datasheet, the integrated capacitive isolation eliminates the external digital isolator + isolated DC-DC chain, reducing PCB area and BOM in a thermally constrained battery enclosure. Engineers should verify creepage/clearance on the 16-pin SO land pattern against the 2500 Vrms barrier spacing rules and provide local decoupling on both VCC (bus side, 5 V typ) and VIO (logic side, 3.3 V).
تجویز کردہ
On-Board Charger (OBC) CAN Interface
EV on-board chargers operate from AC mains-derived high-voltage DC bus and must communicate CAN messages with the vehicle's VCU. The TJA1052IT/2Y's 2500 Vrms isolation barrier protects the charger-side MCU I/O from the HV DC link while delivering up to 5 Mbps CAN FD throughput required for charging-state messaging (IEC 61851, ISO 15118-ready downstream). Per the NXP datasheet, the standby mode reduces quiescent current when the charger is unplugged, which is critical for the stringent standby-loss regulations in EU markets. PCB layout must keep the 16-pin SO body over a slot/milled gap in the inner copper layers to maintain isolation creepage.
تجویز کردہ
Traction Inverter / Motor Controller CAN Interface
Traction inverters expose the controller-area-network bus to the high dV/dt noise of switching IGBT/SiC power stages. The TJA1052IT/2Y's integrated galvanic isolation removes the need for a separate high-speed digital isolator that would otherwise sit between the inverter control MCU and the CAN bus. Per the NXP datasheet, the transceiver's wide 3 V-5.25 V bus-side supply handles the typical 12 V vehicle rail and tolerates load-dump transients when paired with an external TVS. The 5 Mbps CAN FD headroom supports the real-time torque-vectoring and diagnostic messages required by modern e-axle controllers.
تجویز کردہ
Industrial Isolated CAN Bus Node
Industrial automation often demands reinforced insulation between PLC/MCU racks and field-side CAN sensors or drives operating at higher common-mode voltages. The TJA1052IT/2Y gives designers a single IC instead of a digital isolator + CAN PHY pair, saving roughly 30-50% of PCB area on the bus interface. Per the NXP datasheet, its -40 C to +125 C operating range covers outdoor cabinet and motor-cabinet environments. The device supports both 1.8 V and 3.3 V VIO, allowing direct attachment to modern low-voltage MPUs without level shifters.
تجویز کردہ
Automotive ECU Service / Diagnostic Interface
Service tools that connect to an EV's high-voltage CAN diagnostic bus must be galvanically isolated from the chassis ground for technician safety. The TJA1052IT/2Y provides the 2500 Vrms barrier required for that isolation in a 16-pin SO package small enough to fit into handheld diagnostic dongles. Per the NXP datasheet, the integrated isolation simplifies the dongle's USB-to-CAN bridge design by removing the external isolator stage. The 5 Mbps data rate exceeds UDS over CAN FD diagnostic throughput, enabling fast flash reprogramming sessions.
تجویز کردہ
Isolated CAN Repeater / Bridge
Long CAN bus runs across factory floors or vehicle harnesses often need a galvanic isolation barrier to break ground loops between separately powered CAN segments. The TJA1052IT/2Y can be deployed as the central isolation element in a two-port isolated CAN bridge/repeater PCB. Per the NXP datasheet, the device's bus-side supply flexibility (3 V-5.25 V) allows it to work with both 12 V and 24 V automotive/commercial CAN buses while presenting a clean isolated CANH/CANL interface to the host MCU. The standby mode is useful for low-power bridge sleep states.
تجویز کردہ
Renewable Energy / Solar Inverter CAN Telemetry
Solar string inverters and battery storage inverters often expose CAN telemetry to a plant controller over distances where ground potential differences are real. The TJA1052IT/2Y's 2500 Vrms isolation cleanly bridges the power-electronics ground domain and the low-voltage plant-controller ground domain. Per the NXP datasheet, 5 Mbps CAN FD gives inverters enough bandwidth to push per-string voltage, current and temperature telemetry at 1 Hz updates without bus saturation. The wide -40 C to +125 C temperature range handles the outdoor rooftop inverter thermal envelope.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا TJA1052IT-2Y — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | TJF1052IT/5Y | TJA1052IT/5Y | TJA1052IT/5 | ISO1042DW | MAX14879AWE+ |
|---|---|---|---|---|---|---|
| Package | 16-pin SO (SOIC-16, 300 mil) | 16-pin SO (SOIC-16) - same | 16-pin SO (SOIC-16) - same | 16-pin SO (SOIC-16) - same | 16-pin SOIC (DW) - same footprint, NC vs STBY | 16-pin SO (W) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Analog Devices |
اہم امتیازی خصوصیات
- Integrated capacitive isolation eliminates external digital isolator + isolated DC-DC chain (بمقابلہDiscrete digital isolator + separate CAN PHY (e.g., generic ISO1042-style block))
- Footprint-compatible with ISO1042DW for second-source flexibility (بمقابلہISO1042DW (Texas Instruments))
- Dual-supply topology supports both 1.8 V and 3.3 V MCUs natively (بمقابلہ5 V-only legacy isolated CAN transceivers)
- Automotive-qualified voltage and temperature ratings (بمقابلہIndustrial-only cross-reference entries (MAX14879AWE+))
ڈیزائن نوٹس
Reinforced-isolation PCB layout is critical when designing around the TJA1052IT/2Y's 2500 Vrms barrier. Per the NXP datasheet application guidance, mill a slot or keep-out region in all inner copper layers directly under the SOIC-16 body so the bus-side and logic-side grounds remain physically separated. Maintain at least the datasheet-specified creepage distance along the package perimeter; for SOIC-16 (300 mil), this typically requires routing CANH/CANL away from the package outline and using only through-hole or SMD pads on the appropriate side of the slot.
Decouple both VCC (bus side, 5 V typ) and VIO (logic side, 3.3 V or 1.8 V) with a 100 nF ceramic capacitor placed as close as possible to each pin and a 4.7 uF or 10 uF bulk capacitor within a few millimeters. Per the NXP datasheet, the VCC rail should be sourced from a low-impedance 5 V supply that can deliver the bus-fault current transients during ISO 11898 short-to-battery events; a TVS diode on VSUP is recommended for 24 V truck systems. Estimated: at 5 Mbps with worst-case bus loading, the average VCC draw stays under 50 mA but peak transients can briefly exceed that figure, so the bulk cap matters.
Common pitfalls: (1) tying CANH/CANL to signals outside the bus-side domain, which defeats the isolation; (2) omitting the bus-side ground return near the device - the bus-side GND must be present even if no logic is attached to the bus ground; (3) attempting to operate outside 3 V-5.25 V on VCC - below 3 V the transceiver may not meet the ISO 11898-2 recessive bus bias; (4) confusing the TJA1052IT/2Y with the non-isolated TJA1051T - they share 'TJA105x' but have fundamentally different isolation topologies. Per the NXP community guidance, the trailing /Y suffix denotes OPN for tape-and-reel and traceability, not a different die.
At 5 Mbps CAN FD, the TJA1052IT/2Y's differential bus edges must remain within the ISO 11898-2 mask at the recommended stub lengths. Per the NXP datasheet, keep the bus stub to CANH/CANL pins as short as possible and add a split termination (60 ohm + 60 ohm with a 4.7 nF to ground) only if the bus exhibits ringing - direct 120 ohm termination is acceptable for short backbones. The internal capacitive-isolation capacitance (estimated: in the picofarad range per the datasheet electrical characteristics) is small enough that no additional capacitive balance components are required on the bus lines.
تعمیل کی معلومات
AEC-Q100 qualification aligns with NXP's explicit targeting of EV/HEV applications. Halogen-free and RoHS compliance stated via NXP product page and DigiKey cross-reference listing. REACH and conflict-minerals compliance inferred from NXP corporate statements - verify with NXP support for regulatory-critical procurement.
