Overview
The TLIN2021-Q1 is a local interconnect network (LIN) physical layer transceiver designed by Texas Instruments for automotive and industrial applications. This device supports the LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and ISO 17987–4 electrical physical layer standards. It is AEC-Q100 qualified, ensuring its reliability and performance in harsh automotive environments. The TLIN2021-Q1 facilitates low-speed universal asynchronous receiver transmitter (UART) communication, making it suitable for in-vehicle networking.
Key Specifications
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VSUP) | High-voltage supply from the battery | 27 | - | 45 | V |
| Junction Temperature (TJ) | Operating temperature range | -40 | - | 150 | °C |
| TXD Data Rate | Transmitter data rate | - | - | 20 kbps | - |
| RXD Data Rate | Receiver data rate | - | - | 100 kbps | - |
| ESD Protection | Human body model (HBM) classification level | - | - | ±10000 V (LIN), ±8000 V (VSUP, INH, WAKE) | V |
| Load Dump Support | Maximum voltage during load dump | - | - | 42 V | V |
| Package Options | Available packages | - | - | SOIC (8), VSON (8) | - |
Key Features
- AEC-Q100 qualified for automotive applications
- Compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and ISO 17987–4 electrical physical layer standards
- Integrated 45-kΩ LIN pull-up resistor
- Local wake-up via the WAKE pin or EN pin
- Power-up/down glitch-free operation on LIN bus and RXD output
- Protection features: ±60-V LIN bus fault tolerant, 42-V load dump support, IEC ESD protection, undervoltage protection on VSUP input, TXD dominant state time-out, thermal shutdown, unpowered node or ground disconnection fail-safe at system level
- Current-limited wave-shaping driver to reduce electromagnetic emissions (EME)
- Low-power sleep mode with wake-up from sleep mode via wake over LIN, the WAKE pin, or the EN pin
- System-level power control using the INH pin
Applications
- Body Electronics and Lighting
- Automotive Infotainment and Cluster
- Hybrid Electric Vehicles and Power Train Systems
- Passive Safety
- Industrial Transportation
Q & A
- What is the TLIN2021-Q1 used for?
The TLIN2021-Q1 is a local interconnect network (LIN) physical layer transceiver used for low-speed UART communication in automotive and industrial applications.
- What are the key protection features of the TLIN2021-Q1?
The device includes ±60-V LIN bus fault tolerance, 42-V load dump support, IEC ESD protection, undervoltage protection on VSUP input, TXD dominant state time-out, thermal shutdown, and unpowered node or ground disconnection fail-safe at system level.
- How does the TLIN2021-Q1 support wake-up from low-power mode?
The device supports wake-up from low-power mode via wake over LIN, the WAKE pin, or the EN pin.
- What are the available package options for the TLIN2021-Q1?
The TLIN2021-Q1 is available in SOIC (8) and VSON (8) packages.
- What is the operating temperature range of the TLIN2021-Q1?
The operating temperature range is from -40°C to 150°C.
- Does the TLIN2021-Q1 have integrated ESD protection?
- How does the TLIN2021-Q1 reduce electromagnetic emissions?
The device has a current-limited wave-shaping driver to reduce electromagnetic emissions (EME).
- What is the purpose of the INH pin on the TLIN2021-Q1?
The INH pin is used to control system-level power supplies, allowing for reductions in battery current consumption.
- Is the TLIN2021-Q1 compliant with automotive standards?
- What are the typical applications of the TLIN2021-Q1?
The device is used in body electronics and lighting, automotive infotainment and cluster, hybrid electric vehicles and power train systems, passive safety, and industrial transportation.
