Overview
The NCV7329D10R2G is a fully featured local interconnect network (LIN) transceiver designed by onsemi to interface between a LIN protocol controller and the physical bus. This component is tailored for automotive applications, particularly for communicating low-rate data from control devices such as door locks, mirrors, car seats, and sunroofs. The LIN bus is optimized to minimize wiring and costs, using a single wire in each node, with each node containing a slave MCU-state machine to interpret and execute specific instructions.
The LIN bus is notable for handling non-time-critical functions, primarily related to passenger comfort. The NCV7329D10R2G is compliant with ISO 17987-4 and SAE J2602 standards, ensuring compatibility and reliability in automotive environments.
Key Specifications
| Parameter | Conditions | Min. | Max. | Unit | |
|---|---|---|---|---|---|
| VBB Battery Supply | 5 | 12 | 18 | V | |
| IBB Battery Supply Current (Normal Mode; LIN recessive) | VBB = 5 V to 18 V; TJ = −40°C to +150°C | 0.2 | 0.55 | 1.2 | mA |
| IBB Battery Supply Current (Normal Mode; TxD = Low, LIN dominant) | VBB = 5 V to 18 V; TJ = −40°C to +150°C | 2 | 3.9 | 6.5 | mA |
| IBB Battery Supply Current (Sleep and Standby Mode; LIN recessive; VLIN = VBB; TJ < 85°C) | 6 | 10 | μA | ||
| PORH_VBB Power-on Reset; High Level on VBB | VBB Rising | 2.7 | 3.5 | 4.4 | V |
| MONH_VBB Battery Monitoring High Level | VBB Rising | 3.2 | 4.2 | 5.0 | V |
| Transmission Rate | 1 kbps | 20 kbps | |||
| VLIN_DOM Dominant Output Voltage (Normal mode; VBB = 7 V) | 1.2 | V | |||
| VLIN_DOM Dominant Output Voltage (Normal mode; VBB = 18 V) | 2.0 | V |
Key Features
- LIN-Bus Transceiver: Compliant to ISO 17987-4 and SAE J2602 standards, ensuring backwards compatibility with LIN Specification rev. 2.x and 1.3.
- Bus Voltage: Supports up to 42 V.
- Transmission Rate: Up to 20 kbps.
- TxD Timeout Function: Prevents the LIN bus from being permanently driven dominant due to application failures.
- Integrated Slope Control: Optimizes signal transmission.
- Protection Features:
- Thermal Shutdown
- Undervoltage Protection
- Bus Pins Protected Against Transients in an Automotive Environment
- Operating Modes:
- Normal Mode: Full functionality of the LIN transceiver available.
- Sleep Mode: Extremely low current consumption with the LIN transceiver inactive.
- Standby Mode: Transition mode reached after a wake-up event on the LIN bus.
- Compatibility: Pin-compatible subset with NCV7321 and K-line compatible.
- Quality and Compliance: AEC-Q100 qualified, PPAP capable, Pb-free, Halogen-free/BFR-free, and RoHS compliant.
Applications
The NCV7329D10R2G is primarily used in automotive applications for communicating with various control devices related to passenger comfort. These include:
- Door locks
- Mirrors
- Car seats
- Sunroofs
The component is also suitable for any system requiring a reliable and efficient LIN bus interface.
Q & A
- What is the primary function of the NCV7329D10R2G?
The NCV7329D10R2G is a local interconnect network (LIN) transceiver designed to interface between a LIN protocol controller and the physical bus.
- What standards is the NCV7329D10R2G compliant with?
The NCV7329D10R2G is compliant with ISO 17987-4 and SAE J2602 standards.
- What is the maximum transmission rate of the NCV7329D10R2G?
The maximum transmission rate is 20 kbps.
- What protection features does the NCV7329D10R2G have?
The component includes thermal shutdown, undervoltage protection, and protection against transients in an automotive environment.
- What are the operating modes of the NCV7329D10R2G?
The operating modes include Normal Mode, Sleep Mode, and Standby Mode.
- Is the NCV7329D10R2G compatible with other onsemi products?
Yes, it is pin-compatible with the NCV7321 and K-line compatible.
- What is the voltage range for the VBB supply?
The VBB supply voltage range is from 5 V to 18 V.
- How does the TxD timeout function work?
The TxD timeout function prevents the LIN bus from being permanently driven dominant by releasing the bus if TxD remains low for longer than a specified time.
- What is the purpose of the sleep mode?
The sleep mode minimizes current consumption, making the LIN transceiver inactive.
- Is the NCV7329D10R2G RoHS compliant?
Yes, the NCV7329D10R2G is Pb-free, Halogen-free/BFR-free, and RoHS compliant.
