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NXP Semiconductors UJA1076TW/5V0,118
- Part No.:
- UJA1076TW/5V0,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-TSSOP (0.240", 6.10mm Width) Exposed Pad
- Datasheet:
-
UJA1076TW/5V0,118.pdf
- Description:
- IC INTFACE SPECIALIZED 32HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,079
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Product details
Overview
UJA1076TW/5V0,118 from NXP Semiconductors is a high-speed CAN core System Basis Chip (SBC) integrating a 5 V/250 mA microcontroller regulator (V1), dedicated 5 V CAN transceiver regulator (V2), ISO 11898-2/5-compliant CAN transceiver, SPI interface, dual local wake-up inputs, limp-home output, and advanced watchdog - all in a single HTSSOP32 package for automotive ECU power and communication management.
For engineers reviewing the UJA1076TW/5V0,118 datasheet, UJA1076TW/5V0,118 pinout, UJA1076TW/5V0,118 application, or UJA1076TW/5V0,118 equivalent, this SBC delivers deterministic startup, bus- and pin-triggered wake-up, programmable undervoltage thresholds, thermal shutdown, and remote flash programming support via CAN - critical for robust automotive body control, gateway, and sensor node designs.
Technical Context
The UJA1076TW/5V0,118 implements a state-machine-based system controller managing Off/Standby/Sleep/Normal/Overtemp modes with configurable transitions, including V1/V2 enable control, STBCC-governed CAN standby behavior, and LIMP activation on overtemperature fault. Its on-chip oscillator independently clocks the watchdog, decoupling timing from regulated supplies.
SPI communication uses full-duplex 16-bit framing with register-mapped access (WD_and_Status, Mode_Control, Int_Control, Int_Status), supporting read-only reads and interrupt-driven status reporting. Wake-up detection supports edge-selectable interrupts on WAKE1/WAKE2 and synchronized sampling via WBIAS with 16 ms or 64 ms intervals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CAN Standard | ISO 11898-2 and ISO 11898-5 compliant high-speed physical layer; interoperable with TJA1042 |
| V1 Regulator Output | 5 V ±2 %, 250 mA max; supports external PNP extension for thermal distribution across PCB |
| V2 Regulator Output | Dedicated 5 V supply for internal CAN transceiver; switchable off to reduce quiescent current |
| Watchdog Modes | Window, Timeout, and Off modes; programmable period (8–4096 ms); independent on-chip oscillator clock source |
| SPI Interface | Full-duplex 16-bit serial interface with chip select (SCSN), clock (SCK), data in (SDI), data out (SDO) |
| Thermal Protection | Overtemperature shutdown with hysteresis; LIMP output driven LOW upon activation |
| ESD Robustness | ±8 kV HBM and ±6 kV IEC 61000-4-2 on CANH/CANL and WAKE1/WAKE2 pins |
| Short-Circuit Tolerance | CAN bus pins withstand ±58 V transients; battery and CAN pins protected per ISO 7637-3 |
Pinout & Package
Package: HTSSOP32 (SOT549-1), 6.1 mm × 11 mm body, 0.65 mm pitch, exposed die pad for thermal dissipation (electrically isolated, may be left floating or connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V1 (Pin 4) | Main microcontroller supply output | 5 V ±2 % regulated output; powers MCU and peripherals; supports external PNP extension via VEXCTRL/VEXCC |
| RSTN (Pin 6) | Bidirectional reset I/O | Drives LOW during power-on, watchdog fault, or overtemperature; accepts external reset assertion |
| INTN (Pin 7) | Interrupt output | Active-low open-drain signal indicating V1/V2 undervoltage, wake-up, cyclic, or power-on events |
| EN (Pin 8) | Global enable output | Controls safety-critical hardware; driven HIGH in Normal mode when ENC = 1 |
| SDI/SDO/SCK/SCSN (Pins 9–12) | SPI interface signals | Full-duplex configuration interface; enables register read/write, status monitoring, and mode control |
| TXDC/RXDC (Pins 13–14) | CAN controller interface | Direct connection to MCU's CAN controller logic; isolates digital domain from bus physical layer |
| WDOFF (Pin 16) | Watchdog disable input | Forces watchdog into Off mode when pulled HIGH; overrides software control in all operating modes |
| LIMP (Pin 17) | Limp-home activation output | Drives LOW during overtemperature fault to trigger fail-safe hardware response |
| WAKE1/WAKE2 (Pins 18–19) | Local wake-up inputs | Edge-configurable (rising/falling/both) inputs with selectable 16 ms or 64 ms sampling window via WBIAS |
| V2 (Pin 20) | CAN transceiver supply | Dedicated 5 V regulator output; independent of V1 to improve EMC and enable CAN operation during V1 brownout |
| CANH/CANL (Pins 21–22) | CAN bus differential pair | High-speed physical layer interface; ±58 V short-circuit tolerant; floating when powered off |
| SPLIT (Pin 24) | CAN common-mode stabilization | Connects to split termination resistor to stabilize recessive bus level and reduce reflections |
| WBIAS (Pin 28) | Wake bias control output | Provides bias current to external wake-up transistor; sampling interval controlled by WBC bit |
| VEXCC/VEXCTRL (Pins 29/31) | External PNP interface | VEXCTRL drives base; VEXCC monitors collector current to activate external transistor above Ith(act)PNP threshold |
| BAT (Pin 32) | Battery supply input | Accepts 4.5 V–27 V; supports cranking (ISO 7637 pulse 4/4b, ISO 16750-2) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN Transceiver + Dual Regulators | Eliminates discrete CAN PHY, LDOs, and watchdog ICs - reduces BOM count and board area in ECU designs |
| Programmable Watchdog with Independent Clock | Prevents MCU lockup without relying on V1/V2 stability; Window mode enforces strict timing compliance |
| Flexible Wake-Up Architecture | Supports CAN bus activity, local switches (WAKE1/WAKE2), and cyclic wake-up - enabling ultra-low-power Standby/Sleep modes |
| Robust Automotive Qualification | Meets ISO 11898-2/5, ISO 7637-3, ISO 16750-2, ±8 kV HBM, and ±6 kV IEC 61000-4-2 - validated for under-hood environments |
| LIMP Home Fail-Safe Output | Hardware-level fault response activated on overtemperature; enables immediate degradation to safe operational mode |
| Remote Flash Programming Support | Enables firmware updates over CAN bus without requiring physical access - critical for OTA-capable ECUs |
Applications
| Body Control Module (BCM) | Powertrain Gateway |
|---|---|
Use Scenario: Centralized control of lighting, door locks, windows, and HVAC in modern vehicles using distributed CAN nodes. IC Role / Device Role / Timing Role: UJA1076TW/5V0,118 serves as primary power manager and CAN interface, supplying 5 V to BCM MCU while ensuring reliable bus communication and low-power wake-up. Use Value: Enables deterministic startup, bus-triggered wake-up, and limp-home response during thermal faults - improving system availability and functional safety compliance. | Use Scenario: Aggregation and routing of CAN messages between engine, transmission, and chassis networks in multi-bus vehicle architectures. IC Role / Device Role / Timing Role: UJA1076TW/5V0,118 provides isolated 5 V supply to gateway MCU and dedicated 5 V to its integrated CAN transceiver, maintaining bus integrity during voltage transients. Use Value: Independent V2 regulation prevents CAN communication collapse during V1 brownout, supporting ASAM-compliant diagnostic and reprogramming over CAN. |
| Advanced Driver Assistance Systems (ADAS) Sensor Node | Electric Vehicle Battery Management Interface |
Use Scenario: Powering radar or camera modules mounted near engine compartments where temperature and EMI are extreme. IC Role / Device Role / Timing Role: UJA1076TW/5V0,118 delivers stable 5 V to sensor MCU and handles CAN wake-up from host ECU, while its ±58 V CAN tolerance protects against load dump. Use Value: High EMC immunity and ±8 kV HBM protection ensure uninterrupted operation in noisy under-hood environments - reducing false wake-ups and communication errors. | Use Scenario: Interfacing battery pack sensors and contactors to vehicle CAN network in high-voltage EV platforms. IC Role / Device Role / Timing Role: UJA1076TW/5V0,118 supplies isolated 5 V to BMS microcontroller and manages CAN communication with thermal shutdown and LIMP signaling for cell overtemperature events. Use Value: Overtemperature-triggered LIMP output activates contactor disconnect logic, meeting ISO 26262 ASIL-B requirements for fail-safe battery isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive CAN SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1043TK/0Z | Single-function high-speed CAN transceiver only; no integrated regulators, watchdog, or SPI | Requires external LDOs, MCU reset IC, and wake-up logic - increases BOM and layout complexity | Select when only CAN PHY functionality is needed and system-level power management is handled elsewhere |
| UJA1075TW/5V0,118 | Same SBC family but lacks watchdog circuitry (no WD suffix); identical V1/V2, CAN, SPI, and pinout | Not suitable for applications requiring certified watchdog supervision per ISO 26262 ASIL-B | Choose for cost-sensitive non-safety-critical nodes where watchdog is implemented in MCU firmware |
Compared with TJA1043TK/0Z and UJA1075TW/5V0,118, the UJA1076TW/5V0,118 uniquely integrates power regulation, CAN PHY, watchdog, and diagnostics in one HTSSOP32 package - reducing design effort, PCB area, and qualification burden for ASIL-B-compliant automotive ECUs.
Availability
UJA1076TW/5V0,118 is available at Aetrix Electronics and suitable for automotive body control, gateway systems, ADAS sensor nodes, and EV battery interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified sourcing.
Supply support for UJA1076TW/5V0,118 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 deep expertise in CAN, SBC, and functional safety technologies.
The UJA1076TW/5V0,118 belongs to NXP's System Basis Chip product line, engineered specifically for automotive Electronic Control Units to consolidate power management, communication, and safety functions - enabling compact, robust, and ASIL-ready ECU designs.
FAQ
What is the nominal output voltage and accuracy of the V1 regulator in UJA1076TW/5V0,118?
The UJA1076TW/5V0,118 features a 5 V main regulator (V1) with ±2 % output voltage accuracy across temperature and load conditions. This precision ensures stable operation of connected microcontrollers and peripherals, and supports undervoltage warning at 90 % of nominal output (4.5 V) and reset at either 90 % or 70 % (4.5 V or 3.5 V) depending on RSTN pull-up configuration.
Does UJA1076TW/5V0,118 include an integrated watchdog, and how is it configured?
Yes, the UJA1076TW/5V0,118 includes an advanced independent watchdog clocked by an on-chip oscillator. It supports Window, Timeout, and Off modes, with programmable periods from 8 ms to 4096 ms via the NWP bits in the WD_and_Status register. The watchdog can be disabled via the WDOFF pin or software-controlled WMC bit, and automatically re-enables after interrupt handling in Normal mode.
How does the UJA1076TW/5V0,118 handle thermal faults, and what safety response is triggered?
Upon exceeding the overtemperature activation threshold, the UJA1076TW/5V0,118 enters Overtemp mode: V1 and V2 regulators shut down, CAN transceiver disables, RSTN is driven LOW, and the LIMP output is actively driven LOW. This LIMP signal directly activates external fail-safe hardware (e.g., contactor disconnect), fulfilling ASIL-B functional safety requirements for thermal runaway mitigation.
Can UJA1076TW/5V0,118 support remote firmware updates over CAN, and what interfaces enable this?
Yes, the UJA1076TW/5V0,118 supports remote flash programming via the CAN bus. Its integrated high-speed CAN transceiver (ISO 11898-2/5 compliant) enables robust communication, while the SPI interface allows the MCU to configure wake-up sources, monitor status registers (Int_Status), and manage power modes - all essential for secure, authenticated OTA update sequences.
What is the purpose of the SPLIT pin on UJA1076TW/5V0,118, and how should it be used?
Pin 24 (SPLIT) on the UJA1076TW/5V0,118 stabilizes the recessive common-mode voltage on the CAN bus by connecting to a split termination resistor (typically two 60 Ω resistors tied to Vcc/2). This reduces bus reflections and improves signal integrity - especially critical in longer or branched CAN topologies - and is required for optimal EMC performance per ISO 11898-2.
UJA1076TW/5V0,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-TSSOP (0.240", 6.10mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- SPI Serial
- Voltage - Supply:
- 4.5V ~ 28V
- Supplier Device Package:
- 32-HTSSOP
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
UJA1076TW/5V0,118 FAQ
1.How can I place an order for UJA1076TW/5V0,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for UJA1076TW/5V0,118 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 UJA1076TW/5V0,118 reliable?
The price and inventory of UJA1076TW/5V0,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UJA1076TW/5V0,118 is usually 5 days.
3.What payment methods are accepted for UJA1076TW/5V0,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UJA1076TW/5V0,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UJA1076TW/5V0,118?
UJA1076TW/5V0,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UJA1076TW/5V0,118 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 UJA1076TW/5V0,118?
For technical support, including UJA1076TW/5V0,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UJA1076TW/5V0,118 requirements.
6.How does Aetrix verify that UJA1076TW/5V0,118 is sourced from the original manufacturer or authorized distributors?
All UJA1076TW/5V0,118 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 UJA1076TW/5V0,118 meets industry standards.
7.What is the process for return or replacement of UJA1076TW/5V0,118?
All UJA1076TW/5V0,118 units undergo pre-shipment inspection (PSI). If there is an issue with UJA1076TW/5V0,118, 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 UJA1076TW/5V0,118 part is unused and in its original packaging.
Return procedure for UJA1076TW/5V0,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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