My Inquiry
My Account
NXP Semiconductors TJF1052IT/5Y
- Part No.:
- TJF1052IT/5Y
- Manufacturer:
- NXP Semiconductors
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TJF1052IT/5Y.pdf
- Description:
- DGTL ISOL 5000VRMS 2CH CAN 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,400
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TJF1052IT/5Y from NXP Semiconductors is a galvanically isolated high-speed CAN transceiver integrating capacitive isolation and physical-layer transceivers in a single SO16 package. It provides differential transmit/receive capability for microcontroller-based CAN controllers, supports data rates up to 5 Mbit/s in CAN FD fast phase, features 5 kVRMS isolation (UL 1577/IEC 61010), and operates across −40 °C to +105 °C ambient. It is deployed in industrial motor drives, elevator control systems, and isolated PLC nodes where safety-critical voltage barrier integrity and noise-immune bus communication are required.
For engineers reviewing the TJF1052IT/5Y datasheet, TJF1052IT/5Y pinout, TJF1052IT/5Y application, or TJF1052IT/5Y equivalent, this page delivers verified technical context including loop delay symmetry (≤220 ns), CMTI (45 kV/µs typ), bus common-mode range (±25 V), TXD dominant time-out (1.7 ms typ), and dual-supply undervoltage detection thresholds - all confirmed for the TJF1052IT/5Y variant per NXP Rev. 3 datasheet.
Technical Context
The TJF1052IT/5Y implements ISO 11898-2:2003-compliant CAN physical layer with integrated capacitive isolator enabling DC-stable signal transmission. Its dual-domain architecture separates controller-side (VDD1/GND1) and bus-side (VDD2/GND2) supplies, enforcing reinforced insulation rated at 5 kVRMS and supporting ±25 V common-mode bus voltage.
It features three operational states: Normal mode (full TX/RX active), Standby mode (low-power receiver active, bus terminated to GND), and switch-off (zero bus load). Critical fail-safes include TXD dominant time-out (0.3–5 ms), VDD2 undervoltage detection (1.3–4.75 V thresholds), and overtemperature shutdown (Tj(sd) = 190 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS per UL 1577 and IEC 61010 - enables safe separation between 24 V industrial control logic and 600 V motor drive bus domains. |
| Data Rate Support | Up to 5 Mbit/s in CAN FD fast phase - meets timing requirements for high-throughput diagnostics and firmware updates in modern industrial networks. |
| Loop Delay Symmetry | Max 220 ns (TXD→RXD) - ensures deterministic bit timing alignment critical for multi-node synchronization and error-free arbitration. |
| CMTI | 45 kV/µs typical - maintains signal integrity during fast transients from variable-frequency drives or relay switching in factory environments. |
| Bus Common-Mode Range | ±25 V - tolerates ground potential differences between distributed nodes in large-scale machinery or conveyor systems. |
| TXD Dominant Time-Out | 1.7 ms typical - prevents permanent bus lockup due to MCU hang or software fault, guaranteeing network-level fault containment. |
| Supply Voltage Ranges | VDD1: 3.0–5.25 V (controller side); VDD2: 4.75–5.25 V (bus side) - supports direct interfacing with 3.3 V and 5 V microcontrollers without level shifters. |
Pinout & Package
Package: SO16 (SOT162-1), plastic small outline, 16-pin, 7.5 mm body width, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 1) | Controller-side supply | Power domain for TXD/RXD logic; decoupling required near pin to suppress MCU switching noise coupling into isolation barrier. |
| GND1 (Pins 2, 7, 8) | Controller-side ground reference | Must be star-connected to single-point GND1 plane; electrically isolated from GND2 to maintain 5 kV barrier integrity. |
| TXD (Pin 3) | Digital input from CAN controller | CMOS-compatible; dominant time-out starts on LOW assertion - prevents bus lock if MCU freezes mid-transmission. |
| RXD (Pin 5) | Digital output to CAN controller | CMOS output referenced to VDD1; reflects bus state with ≤220 ns max loop delay - enables real-time protocol stack response. |
| GND2 (Pins 9, 10, 15) | Bus-side ground reference | Must be star-connected to isolated CAN bus ground; forms return path for CANH/CANL currents without compromising isolation. |
| VDD2 (Pins 11, 16) | Bus-side supply | Provides power to isolated transceiver and isolator; undervoltage detection triggers standby or switch-off to prevent undefined bus behavior. |
| CANL (Pin 12) | Low-side CAN bus line | Terminated internally; differential pair with CANH forms ISO 11898-2 compliant physical layer - immune to EMI in noisy motor control cabinets. |
| CANH (Pin 13) | High-side CAN bus line | Paired with CANL; outputs dominant voltage symmetry (±400 mV) - ensures robust differential signaling under load variation. |
| STB (Pin 14) | Standby mode control | Active-HIGH input; forces low-power monitoring mode when asserted - reduces VDD2 current to ~5.6 mA while retaining wake-up capability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated capacitive isolator + transceiver | Eliminates discrete isolation components (e.g., separate digital isolator + CAN transceiver), reducing BOM count by ≥3 parts and PCB area by >40%. |
| Reinforced 5 kVRMS isolation | Meets UL 1577, IEC 61010, and IEC 60950 safety standards - certified for use in Class I equipment requiring double insulation in industrial mains-connected systems. |
| Zero-load bus disengagement | When VDD2 falls below 1.3 V, transceiver fully disconnects from CANH/CANL - prevents unintended bus loading during power loss or brownout events. |
| Guaranteed loop delay symmetry | TXD→RXD delay ≤220 ns with <±40 ns asymmetry - enables precise timestamping and deterministic latency for time-sensitive motion control applications. |
| Robust ESD protection | ±8 kV HBM on CANH/CANL pins - withstands repeated handling and field electrostatic discharge without latch-up or parameter drift. |
Applications
| Industrial Motor Drives | Elevator Control Systems |
|---|---|
Use Scenario: Isolated CAN node connecting PLC to VFDs in multi-axis servo systems with 400 V AC mains exposure. IC Role / Device Role / Timing Role: Physical-layer interface bridging controller domain (24 V logic) and high-noise motor bus domain (±25 V CM, 5 kV barrier). Use Value: Prevents ground-loop-induced communication errors and protects PLC from transient surges during IGBT switching. |
Use Scenario: Safety-critical CAN network linking car controller, door operator, and machine-room panel in EN 81-20 compliant elevators. IC Role / Device Role / Timing Role: Galvanic barrier ensuring functional safety separation between SELV control circuits and non-SELV traction motor interfaces. Use Value: Meets IEC 61000-4-4/5 immunity requirements and eliminates risk of electric shock during maintenance access. |
| Programmable Logic Controllers | On-Demand Hydraulic Pumps |
Use Scenario: Distributed I/O module in modular PLC rack communicating via CANopen with remote analog/digital modules across 10+ meter cable runs. IC Role / Device Role / Timing Role: High-integrity physical transceiver maintaining bit-level accuracy at 1 Mbit/s despite 40 dB conducted noise on shared DIN rail power. Use Value: Enables deterministic cycle times (<100 µs jitter) and eliminates retransmission overhead in closed-loop control loops. |
Use Scenario: Beltless hydraulic pump system using CAN FD for real-time pressure/flow feedback and predictive maintenance telemetry in mining equipment. IC Role / Device Role / Timing Role: Isolated interface between 3.3 V ARM Cortex-M7 controller and 24 V CAN bus exposed to 10 kV EFT bursts from solenoid valves. Use Value: Sustains 5 Mbit/s FD fast-phase operation during EMC stress testing without packet loss or reset events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar galvanically isolated CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM3053BRWZ | 5 kVRMS isolation, but uses transformer-based isolation; higher loop delay (250 ns max); no TXD time-out function. | Requires external common-mode choke for optimal EMI performance; less suitable for CAN FD >2 Mbit/s due to timing uncertainty. | Select when legacy transformer-isolation design reuse is prioritized over CAN FD timing guarantees. |
| ISO1050DUBR | 5 kVRMS isolation, capacitive like TJF1052IT/5Y, but only supports up to 1 Mbit/s; lacks bus wake-up filter and STB pin. | Not qualified for CAN FD fast phase; limited to classical CAN networks; no standby mode for low-power monitoring. | Select for cost-sensitive classical CAN nodes where 5 Mbit/s and advanced fail-safes are unnecessary. |
Compared with ADM3053BRWZ and ISO1050DUBR, the TJF1052IT/5Y uniquely combines 5 Mbit/s CAN FD support, guaranteed ≤220 ns loop delay, integrated TXD time-out, and configurable standby mode - making it the only option validated for time-deterministic industrial automation requiring both safety isolation and high-speed diagnostics.
Availability
TJF1052IT/5Y is available at Aetrix Electronics and suitable for industrial motor drives, elevator control systems, programmable logic controllers, and on-demand hydraulic pumps requiring stable component supply with long-term lifecycle assurance.
Supply support for TJF1052IT/5Y includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with core expertise in CAN, SBC, and isolated interface technologies.
The TJF1052IT/5Y belongs to NXP's third-generation isolated CAN transceiver family, engineered specifically for industrial automation systems demanding reinforced safety isolation, CAN FD timing compliance, and robust EMC performance in harsh electromagnetic environments.
FAQ
What is the isolation voltage rating of the TJF1052IT/5Y?
The TJF1052IT/5Y has a rated insulation voltage of 5 kVRMS per UL 1577 and IEC 61010, verified by production testing at 6000 VPK for 1 second. This rating applies specifically to the TJF1052IT/5Y variant and enables safe operation in industrial equipment with high-voltage motor drives or mains-connected subsystems where reinforced insulation is mandated.
Does the TJF1052IT/5Y support CAN FD, and what is its maximum data rate?
Yes, the TJF1052IT/5Y supports CAN FD in the fast phase up to 5 Mbit/s, with timing parameters including loop delay symmetry (≤220 ns) and tbit(RXD) (120–550 ns) explicitly guaranteed for this speed. Its ISO 11898-2:2003 compliance and additional loop delay symmetry specs ensure reliable operation in CAN FD networks - a capability confirmed for the TJF1052IT/5Y in NXP's Rev. 3 datasheet.
How does the TXD dominant time-out function work in the TJF1052IT/5Y?
The TJF1052IT/5Y initiates a TXD dominant time-out timer when TXD is held LOW; if the LOW state persists beyond 1.7 ms (typical), the transmitter disables and releases the bus to recessive. This prevents permanent bus dominance caused by MCU faults. The timer resets on each TXD HIGH edge and is active only in Normal mode - a fail-safe feature documented specifically for the TJF1052IT/5Y in Section 7.2.1 of its datasheet.
What are the supply voltage requirements for TJF1052IT/5Y operation?
The TJF1052IT/5Y requires two independent supplies: VDD1 (3.0–5.25 V, controller side) powers TXD/RXD logic and interfaces directly with 3.3 V or 5 V microcontrollers; VDD2 (4.75–5.25 V, bus side) powers the isolated transceiver and isolator. Undervoltage detection thresholds - Vuvd(swoff)(VDD2) = 1.3–2.7 V and Vuvd(stb)(VDD2) = 3.5–4.75 V - are specified and tested for the TJF1052IT/5Y variant.
Can the TJF1052IT/5Y operate in standby mode, and how is it enabled?
Yes, the TJF1052IT/5Y enters Standby mode when STB pin is driven HIGH or when VDD2 drops below 3.5 V (Vuvd(stb)). In this mode, the main transmitter and receiver disable, but a low-power receiver remains active to monitor bus activity with 0.5–3 µs wake-up filter. RXD continues reflecting bus state, and bus lines are biased to GND - all behaviors confirmed for the TJF1052IT/5Y in Sections 7.1.2 and Table 5.
TJF1052IT/5Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- CAN
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Data Rate:
- 2Mbps
- Propagation Delay tpLH / tpHL (Max):
- -
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -
- Voltage - Supply:
- 3V ~ 5.25V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
TJF1052IT/5Y FAQ
1.How can I place an order for TJF1052IT/5Y through Aetrix?
Please submit a Request for Quotation (RFQ) for TJF1052IT/5Y on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TJF1052IT/5Y reliable?
The price and inventory of TJF1052IT/5Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TJF1052IT/5Y is usually 5 days.
3.What payment methods are accepted for TJF1052IT/5Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TJF1052IT/5Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TJF1052IT/5Y?
TJF1052IT/5Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TJF1052IT/5Y order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TJF1052IT/5Y?
For technical support, including TJF1052IT/5Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TJF1052IT/5Y requirements.
6.How does Aetrix verify that TJF1052IT/5Y is sourced from the original manufacturer or authorized distributors?
All TJF1052IT/5Y products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TJF1052IT/5Y meets industry standards.
7.What is the process for return or replacement of TJF1052IT/5Y?
All TJF1052IT/5Y units undergo pre-shipment inspection (PSI). If there is an issue with TJF1052IT/5Y, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TJF1052IT/5Y part is unused and in its original packaging.
Return procedure for TJF1052IT/5Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TJF1052IT/5Y Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
