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NXP Semiconductors UJA1075ATW/5V0,118
- Part No.:
- UJA1075ATW/5V0,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-TSSOP (0.240", 6.10mm Width) Exposed Pad
- Datasheet:
-
UJA1075ATW/5V0,118.pdf
- Description:
- IC INTFACE SPECIALIZED 32HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,128
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Product details
Overview
UJA1075ATW/5V0,118 from NXP Semiconductors is a high-speed CAN/LIN core System Basis Chip (SBC) integrating a 5 V ±2 % main voltage regulator (V1), ISO 11898-2:2003–compliant CAN transceiver, LIN 2.2A/SJ2602–compliant transceiver, SPI interface, dual wake-up inputs, and limp home output - designed for automotive ECU power and communication management in engine control, body electronics, and chassis modules.
For engineers reviewing the UJA1075ATW/5V0,118 datasheet, UJA1075ATW/5V0,118 pinout, UJA1075ATW/5V0,118 application, or UJA1075ATW/5V0,118 equivalent, this page delivers verified technical context, exact pin functions, automotive-grade fault diagnostics, thermal-safe 250 mA V1 regulation with external PNP extension, and ISO 7637-3 transient-protected bus I/O - all confirmed for the /5V0 variant in HTSSOP32 package.
Technical Context
The UJA1075ATW/5V0,118 implements a dual-regulator architecture: V1 delivers 5 V ±2 % at up to 250 mA for microcontroller supply, while V2 provides dedicated 5 V regulation for the integrated CAN transceiver - both operating down to 4.5 V (V1) and 5.5 V (V2) during cranking per ISO 16750-2. Its SPI interface supports full-duplex register access with read-only mode for status monitoring.
System control uses a state-machine controller managing Off/Standby/Normal/Sleep/Overtemp modes, with wake-up detection on CAN, LIN, and two local inputs (WAKE1/WAKE2), plus programmable watchdog (Window/Timeout/Off) clocked by an independent on-chip oscillator. Bus pins are short-circuit proof to ±58 V and protected per ISO 7637-3 and IEC 61000-4-2 (±6 kV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V1 Output Voltage | 5 V ±2 % - powers MCU and peripherals with stable rail under cranking (VBAT ≥ 4.5 V) |
| V1 Max Current | 250 mA - extendable via external PNP transistor for thermal distribution across PCB |
| CAN Compliance | ISO 11898-2:2003 & ISO 11898-5:2006 - interoperable with TJA1042, supports HS-CAN networks |
| LIN Compliance | LIN 2.2A & SAE J2602 - backward compatible to LIN 1.0, includes low-slope mode for EMC optimization |
| Package | HTSSOP32 (SOT549-1) - 6.1 mm × 11 mm, exposed die pad for thermal dissipation |
| ESD Protection | ±8 kV HBM on CAN/LIN/wake-up pins - meets automotive robustness requirements |
| Operating Temp | −40 °C to +150 °C - qualified for under-hood and transmission control applications |
Pinout & Package
HTSSOP32 package (SOT549-1) with 0.65 mm pitch, 6.1 mm body width, and thermally enhanced exposed die pad soldered to PCB ground for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BAT (32) | Battery input supply | Primary power source for SBC; enables operation down to 4.5 V during cranking |
| V1 (4) | Main regulator output | 5 V ±2 % supply for MCU and peripherals; supports external PNP current boost |
| V2 (20) | CAN transceiver regulator | Dedicated 5 V rail for internal CAN PHY - improves EMC and isolates CAN noise from MCU supply |
| RXDC (14) / TXDC (13) | CAN data interface | Connects to MCU's CAN controller; enables bidirectional HS-CAN communication |
| RXDL (5) / TXDL (3) | LIN data interface | Links to MCU's LIN controller; supports LIN 2.2A frame handling and wake-up signaling |
| WAKE1 (18) / WAKE2 (19) | Local wake-up inputs | Analog wake sources with configurable sampling (16 ms/64 ms); detect switch closures without MCU active |
| LIMP (17) | Limp home output | Active-low signal to trigger fail-safe hardware (e.g., mechanical valve hold) during Overtemp or critical fault |
| SPLIT (24) | CAN common-mode stabilizer | Reduces bus reflections and improves recessive-level stability in long or noisy harnesses |
| INTN (7) | Interrupt output | Open-drain signal notifying MCU of V1/V2 undervoltage, wake events, or cyclic interrupts |
| RSTN (6) | Bidirectional reset | Drives LOW during power-on, watchdog timeout, or overtemperature; configurable reset pulse length |
| SDI/SDO/SCK/SCSN (9–12) | SPI interface | Full-duplex configuration and diagnostic channel; allows real-time status readback without register write |
| WDOFF (16) | Watchdog disable input | Hardware override to disable watchdog independently of software control - used for debug or safe boot |
| DLIN (26) | LIN termination diode | Integrated diode eliminates need for external LIN bus termination resistor |
| VEXCTRL (31) / VEXCC (29) | External PNP control | Drive base and monitor collector of external PNP to share V1 load and reduce die temperature |
Key Features
| Feature | Design Value |
|---|---|
| Independent CAN & LIN regulators | V2 powers CAN transceiver separately from V1 - prevents CAN switching noise from corrupting MCU supply |
| Programmable watchdog with on-chip oscillator | Window/Timeout/Off modes; 128 ms default period; immune to V1/V2 supply fluctuations due to dedicated oscillator |
| Automotive-grade bus protection | ±58 V short-circuit tolerance + ISO 7637-3 transient immunity - eliminates need for external TVS on CAN/LIN lines |
| Flexible wake-up architecture | Three wake sources (CAN/LIN/local) with source identification and configurable sampling - enables ultra-low-power Standby (< 100 µA) |
| Limp home fail-safe output | Hardware-driven LIMP pin activates on Overtemp or critical fault - bypasses software to ensure deterministic safety response |
| Thermally optimized V1 regulation | 250 mA internal + external PNP support with selectable current thresholds (50/85 mA activation) - distributes heat across PCB |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Centralized power and communication management for diesel/gasoline engine controllers interfacing with crank/cam sensors, injectors, and throttle actuators. IC Role / Device Role / Timing Role: Core SBC providing regulated 5 V MCU supply, HS-CAN backbone connectivity, LIN sub-network for sensors, and fail-safe limp home output during thermal runaway. Use Value: Eliminates discrete regulators, CAN/LIN transceivers, and watchdog ICs - reduces BOM count by ≥7 components while meeting ISO 26262 ASIL-B readiness via diagnostic SPI registers and overtemperature shutdown. | Use Scenario: Power and network hub for door modules, lighting controls, and seat position memory in premium vehicles. IC Role / Device Role / Timing Role: Supplies 5 V to body MCU, manages LIN slave nodes (e.g., mirror motors, window switches), and wakes system via local inputs or CAN message. Use Value: Enables <100 µA Standby current with wake-up source detection - extends battery life in parked vehicle mode while maintaining full CAN/LIN responsiveness. |
| Chassis Control Unit | Transmission Control Module |
Use Scenario: Safety-critical ABS/ESC controller requiring robust power sequencing, bus fault resilience, and deterministic reset behavior. IC Role / Device Role / Timing Role: Delivers controlled power-up sequence, monitors V1/V2 undervoltage, signals faults via INTN, and asserts LIMP to hold hydraulic valves open during failure. Use Value: Meets ASIL-B functional safety requirements through hardware-based overtemperature shutdown, independent watchdog, and SPI-accessible status registers for runtime diagnostics. | Use Scenario: High-reliability control unit managing torque converter clutch, gear solenoids, and shift logic in automatic transmissions. IC Role / Device Role / Timing Role: Provides 5 V MCU supply tolerant to cranking dips (down to 4.5 V), interfaces with CAN for vehicle network commands, and uses LIN for internal sensor feedback. Use Value: Maintains operation during cold-cranking transients per ISO 16750-2; integrated SPLIT pin stabilizes CAN recessive level across long transmission harnesses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar core SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1023TK/0Z | Single 5 V regulator (250 mA), no LIN transceiver, no SPI interface, no limp home output | Targeted for CAN-only ECUs without sub-bus or advanced diagnostics | Select when LIN networking and SPI-configurable watchdog are unnecessary - lower cost, smaller footprint (SOIC8) |
| UJA1169ATW/5V0,118 | Includes integrated 32-bit ARM Cortex-M0+ safety monitor, ASIL-B certified, supports CAN FD, adds GPIOs and ADC | Designed for ASIL-B systems requiring runtime self-test and CAN FD upgrade path | Choose for next-gen designs needing embedded safety co-processor and future-proof CAN FD capability - higher integration, higher BOM cost |
Compared with TJA1023TK/0Z, UJA1075ATW/5V0,118 adds LIN, SPI, and limp home for multi-protocol ECUs; versus UJA1169ATW/5V0,118, it offers lower cost and simpler firmware but lacks safety-certified processor and CAN FD - ideal for established CAN/LIN architectures requiring proven reliability.
Availability
UJA1075ATW/5V0,118 is available at Aetrix Electronics and suitable for engine control units, body control modules, chassis control units, and transmission control modules requiring stable component supply across automotive production lifecycles.
Supply support for UJA1075ATW/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 focused on automotive, industrial, and IoT applications, with deep expertise in secure connectivity and embedded processing.
The UJA1075ATW/5V0,118 belongs to NXP's System Basis Chip product line, engineered specifically for automotive electronic control units that require integrated power management, HS-CAN/LIN networking, and fail-safe diagnostics in harsh environments.
FAQ
What is the nominal output voltage and accuracy of the main regulator in UJA1075ATW/5V0,118?
The UJA1075ATW/5V0,118 features a main voltage regulator (V1) delivering 5 V with ±2 % accuracy across temperature and load. This tight tolerance ensures reliable operation of connected microcontrollers and peripherals under varying battery conditions, including cranking events down to 4.5 V VBAT - fully compliant with ISO 16750-2. The UJA1075ATW/5V0,118 maintains this specification without external trimming components.
Does UJA1075ATW/5V0,118 include a watchdog timer, and how is it configured?
Yes, the UJA1075ATW/5V0,118 includes a programmable watchdog with Window, Timeout, and Off modes, clocked by an independent on-chip oscillator. Configuration occurs via the WD_and_Status register (bits WMC and NWP) over SPI, with default period set to 128 ms. The UJA1075ATW/5V0,118 also supports hardware disable via the WDOFF pin, enabling debug-safe boot sequences without software intervention.
How does UJA1075ATW/5V0,118 handle wake-up from low-power states?
The UJA1075ATW/5V0,118 supports wake-up from Standby or Sleep modes via three independent sources: HS-CAN bus activity, LIN bus activity, or assertion on either WAKE1 or WAKE2 inputs. Wake-up source is identifiable via status bits (WLS1/WLS2) in the WD_and_Status register, and sampling timing (16 ms or 64 ms) is configurable via WBC bit. This enables deterministic, low-current wake detection essential for automotive always-on functions - a core capability of the UJA1075ATW/5V0,118.
What protection features does UJA1075ATW/5V0,118 provide on its CAN and LIN bus pins?
The UJA1075ATW/5V0,118 provides ±58 V short-circuit protection on CANH/CANL and LIN pins, transient immunity per ISO 7637-3, ±6 kV IEC 61000-4-2 ESD, and ±8 kV HBM ESD. These protections eliminate the need for external TVS diodes in most automotive harness environments. The UJA1075ATW/5V0,118 also features floating bus pins in Off mode and SPLIT output for recessive-level stabilization - enhancing robustness in electrically noisy vehicle networks.
Can UJA1075ATW/5V0,118 supply external transceivers, and how is current extended beyond 250 mA?
Yes, the UJA1075ATW/5V0,118's V1 regulator can supply external transceivers and supports current extension beyond 250 mA using an external PNP transistor. Control is managed via VEXCTRL (base drive) and VEXCC (collector current sense) pins, with programmable activation thresholds (50 mA or 85 mA rising edge). This distributes thermal load across the PCB - a key design feature of the UJA1075ATW/5V0,118 for high-current ECU applications.
UJA1075ATW/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:
- Not For New Designs
- Applications:
- -
- Interface:
- CAN, LIN
- Voltage - Supply:
- 4.5V ~ 28V
- Supplier Device Package:
- 32-HTSSOP
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
UJA1075ATW/5V0,118 FAQ
1.How can I place an order for UJA1075ATW/5V0,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for UJA1075ATW/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 UJA1075ATW/5V0,118 reliable?
The price and inventory of UJA1075ATW/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 UJA1075ATW/5V0,118 is usually 5 days.
3.What payment methods are accepted for UJA1075ATW/5V0,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UJA1075ATW/5V0,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UJA1075ATW/5V0,118?
UJA1075ATW/5V0,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UJA1075ATW/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 UJA1075ATW/5V0,118?
For technical support, including UJA1075ATW/5V0,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UJA1075ATW/5V0,118 requirements.
6.How does Aetrix verify that UJA1075ATW/5V0,118 is sourced from the original manufacturer or authorized distributors?
All UJA1075ATW/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 UJA1075ATW/5V0,118 meets industry standards.
7.What is the process for return or replacement of UJA1075ATW/5V0,118?
All UJA1075ATW/5V0,118 units undergo pre-shipment inspection (PSI). If there is an issue with UJA1075ATW/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 UJA1075ATW/5V0,118 part is unused and in its original packaging.
Return procedure for UJA1075ATW/5V0,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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