TLE8457DLEXUMA1 - 3.3V LIN Transceiver | Infineon
料号： TLE8457DLEXUMA1 ✓ 量产中TLE8457DLEXUMA1 概述
A LIN transceiver, also called a Local Interconnect Network transceiver, connects a low-cost microcontroller to a vehicle network that uses one signal wire. The communication architecture is based on a master node and one or more slave nodes. Because LIN is designed for slow, short-range vehicle sub-networks, its physical-layer transceiver combines a regulated supply, bus interface, logic-level data interface, and fault-recovery functions in one device.
The TLE8457DLEXUMA1 uses a stable 3.3 V regulator to supply a microcontroller and attached peripherals up to 70 mA. This integration can reduce the number of discrete supply components and simplify PCB allocation in compact body, comfort, or sensor nodes. The 20 kBd bus rate is suitable for LIN 2.2A applications in which nodes exchange diagnostic or control information over low-speed vehicle networks.
The LIN physical layer provides bidirectional communication and is compliant with LIN specification 2.2A and SAE J2602. Its integrated regulator includes undervoltage-reset protection for the supplied microcontroller and peripherals. Exact input-voltage limits, regulator dropout behavior, bus thresholds, protection details, and timing limits should be taken directly from the Infineon TLE8457C/TLE8457D manufacturer datasheet when designing the power and interface networks.
Typical uses include LIN gateway modules, door and window control units, seat-control modules, climate-control peripherals, ambient-light sensors, and other distributed vehicle nodes. The integrated 3.3 V supply is particularly useful when the host controller and its immediate peripherals operate from a common low-voltage rail while also communicating through the LIN bus.
Layout the LIN bus connection for automotive transient immunity, keep the transceiver close to its connector, and provide the decoupling and protection network recommended by the manufacturer. Confirm the package land pattern and exposed-pad thermal requirements against the PG-TDSON-8-1 drawing before release because exposed-pad soldering and copper treatment strongly affect assembly yield and thermal performance.
This product page organizes the manufacturer specifications, interface requirements, application context, and design constraints for engineers evaluating the TLE8457DLEXUMA1. It also distinguishes verified drop-in alternatives from merely similar automotive LIN devices, helping prevent footprint or function mismatches during replacement planning.
直接替换替代料： TLE8457DLEXUMA1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料TLE8457DLEXUMA1 规格参数
| Product Type | Single-channel LIN transceiver with integrated voltage regulator |
| LIN Communication Standard | LIN specification 2.2A |
| Automotive Network Standard | SAE J2602 |
| Integrated Regulator Output | 3.3 V |
| Regulator Output Current | Up to 70 mA |
| LIN Data Rate | 20 kBd |
| Channel Count | 1 |
| Transceiver Configuration | Half-duplex LIN transceiver |
| 封装 | PG-TDSON-8-1 |
| Package Type | 8-pin surface-mount package with exposed pad |
| 安装类型 | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| Regulator Undervoltage Reset | Provided for the supplied microcontroller and peripherals |
TLE8457DLEXUMA1 8-pin surface-mount package with exposed pad 引脚配置指南
TLE8457DLEXUMA1（8-pin surface-mount package with exposed pad 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： TLE8457DLEXUMA1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLE8457DLEXUMA1 适用于 6 应用s: Automotive LIN Sensor Nodes, Door and Window Control Modules, Seat and Comfort Control Units, Climate-Control Peripheral Nodes, Automotive Ambient-Light Sensors, LIN Gateway and Body-Control Modules.
Automotive LIN Sensor Nodes
The TLE8457DLEXUMA1 fits compact automotive sensor nodes that exchange measurements or status over a LIN sub-network and also need a local 3.3 V rail. Its 20 kBd interface targets LIN 2.2A communication, while the integrated regulator can supply a host controller and peripherals with up to 70 mA. This consolidates the bus transceiver and local supply functions in an eight-pin PG-TDSON-8-1 package. The design must budget regulator current across the controller and sensors, and the bus connector should receive protection and grounding consistent with the manufacturer's application guidance.
推荐
Door and Window Control Modules
Door and window modules benefit from the TLE8457DLEXUMA1 because the LIN bus provides a compact connection to distributed body controllers while the integrated 3.3 V regulator powers local logic. At 20 kBd, the interface suits low-bandwidth switch-position, motor-command, and diagnostic information rather than high-bandwidth payloads. The 70 mA regulator output can support a microcontroller and limited peripherals when the complete load remains within budget. Automotive transient protection, connector grounding, and exposed-pad layout are essential for reliable operation in a vehicle electrical environment.
推荐
Seat and Comfort Control Units
The TLE8457DLEXUMA1 is appropriate for seat, mirror, and comfort-control modules that use LIN for distributed commands and require a nearby regulated supply. Its 3.3 V output of up to 70 mA can serve a controller and low-power peripherals, avoiding a separate regulator when board area is constrained. The 20 kBd LIN rate is suitable for control loops and diagnostic data rather than actuator-current feedback or other wideband signals. Engineers should reserve regulator margin for peak peripheral activity and use the manufacturer's pin and layout guidance for the exposed-pad package.
推荐
Climate-Control Peripheral Nodes
Climate-control peripherals can use the TLE8457DLEXUMA1 to connect a distributed actuator or sensor to a LIN-based body network. The 20 kBd interface supports commands, operating states, and diagnostic information at LIN 2.2A rates, while the integrated 3.3 V regulator provides up to 70 mA for local control logic. This integration can simplify a compact harness node by reducing the number of supply components. The design must account for motor-driver load transients, use a separate supply strategy where necessary, and preserve the regulator budget for the transceiver host electronics.
推荐
Automotive Ambient-Light Sensors
A LIN-connected ambient-light sensor node can use the TLE8457DLEXUMA1 when the module also requires a regulated 3.3 V supply for a sensor and signal-conditioning electronics. The transceiver's 20 kBd communication rate is more than sufficient for slow illumination measurements, configuration commands, and diagnostics. Its regulator can provide up to 70 mA, subject to the combined sensor and controller load. Keep sensitive analog signal paths away from the LIN return-current path and follow the manufacturer grounding and decoupling recommendations for predictable behavior.
推荐
LIN Gateway and Body-Control Modules
The TLE8457DLEXUMA1 is useful in a LIN gateway or body-control module that needs a local 3.3 V rail and one LIN network endpoint. Its half-duplex interface supports bidirectional communication at 20 kBd under LIN 2.2A and SAE J2602 requirements, making it appropriate for command and diagnostic traffic. The integrated regulator can power a controller and limited peripherals with a combined budget of no more than 70 mA. In a multi-channel gateway, keep each transceiver's bus routing and return path controlled so connector transients and ground currents do not disturb sensitive control circuitry.
推荐
推荐产品汇总
工程参考数据： TLE8457DLEXUMA1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Product Type | Single-channel LIN transceiver with integrated voltage regulator |
| Brand | Infineon Technologies |
| Package | PG-TDSON-8-1 |
| Regulator Output | 3.3 V |
| Regulator Output Current | Up to 70 mA |
| LIN Data Rate | 20 kBd |
| Communication Compliance | LIN specification 2.2A and SAE J2602 |
| Automotive Qualification | AEC-Q100 qualified |
关键差异点
- Integrated 3.3 V regulator reduces the need for a separate local supply component （对比 Generic standalone LIN transceiver)
- Automotive interface qualification supports vehicle-network deployments （对比 TLE7257SJXUMA1)
- Single integrated package combines the transceiver and regulated supply （对比 Discrete LIN transceiver plus regulator)
设计说明
Treat the integrated regulator's 70 mA rating as the total DC budget for the TLE8457DLEXUMA1 output, including the host microcontroller, pull-ups, interface logic, and attached peripherals. Use the Infineon TLE8457C/TLE8457D manufacturer datasheet for the permitted input range, dropout characteristic, thermal limits, and decoupling values. A separate regulator or a revised load budget is necessary when actuator drivers, sensors, or other peripherals cannot share the 3.3 V rail.
Place the TLE8457DLEXUMA1 close to the LIN connector and route the bus conductor as a short, controlled path with the protection network specified by the manufacturer. Keep high-current actuator returns and switching-node wiring away from the transceiver, regulator output, and exposed-pad copper. Follow the PG-TDSON-8-1 land pattern and exposed-pad soldering recommendations exactly to avoid assembly defects and preserve thermal performance.
Do not assume that any device labeled LIN transceiver is a drop-in replacement. The replacement must match the PG-TDSON-8-1 footprint, all eight pin functions, exposed-pad requirements, 3.3 V regulator output, 70 mA capability, 20 kBd operation, bus protection, and automotive qualification. Also verify the regulator's undervoltage-reset interaction with the intended host controller and ensure the total connected-node load does not exceed the device's permitted operating conditions.
合规信息
The component is identified as AEC-Q100 qualified and compliant with LIN specification 2.2A and SAE J2602. Confirm current RoHS, REACH, lead-free, halogen-free, and conflict-mineral statements from the manufacturer product documentation before release.
