TLE7729TXUMA1 - 4-Channel Airbag Receiver | Infineon
料号： TLE7729TXUMA1 ✓ 量产中TLE7729TXUMA1 概述
An interface IC is an integrated circuit that connects sensors, controllers, and other system blocks using standardized electrical signaling. Within the automotive electronics hierarchy, the TLE7729TXUMA1 belongs to the specialized interface IC category rather than a general-purpose communications transceiver. Its defining role is to receive information from multiple remote sensing nodes and forward it to the vehicle safety controller over a serial interface, reducing the number of separate wiring connections required by a distributed restraint system.
According to the available TLE7729 documentation, the principal identified functions are four-channel satellite reception, SatRIC operation, and a serial interface for automotive airbag systems. The automotive qualification designation and specialized SatRIC architecture make the IC suitable only where the surrounding sensing, bus, and restraint-control architecture is compatible with Infineon’s system. It should not be treated as a general-purpose UART, SPI, or CAN transceiver because the verified sources describe a dedicated satellite-receiver application.
The verified component information identifies the package as PG-TSSOP-28, also described by distributors as a 28-pin TSSOP. Tape-and-reel ordering is indicated by the TXUMA1 ordering code and by distributor listings that identify the part as 28TSSOP T/R. Because the retrieved sources do not expose individual terminal names or a complete pin-assignment table, the package diagram is identified separately from the electrical pin map.
Typical uses include distributed airbag satellite sensors, remote acceleration-sensing modules in vehicle restraint systems, and central airbag control units that collect crash data from several remote sensor locations. The four-channel architecture supports multi-axis sensing systems by consolidating several satellite signals behind a dedicated serial receiver.
The critical design constraint is system-level interoperability. A PCB redesign should preserve the Infineon-defined SatRIC physical interface, power distribution, reference connections, and communication timing because no verified evidence in the supplied data confirms that an unrelated generic interface IC is pin-to-pin compatible. Vehicle-level EMC behavior, diagnostic coverage, and air-quality or functional-safety conclusions should be validated against the complete manufacturer datasheet and the deployment platform rather than inferred from distributor summaries.
直接替换替代料： TLE7729TXUMA1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
TLE7729
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLE7729TXUMA1 规格参数
| Manufacturer | Infineon Technologies |
| Product Type | 4-channel airbag satellite receiver IC |
| Number of Receiver Channels | 4 channels |
| Interface Technology | SatRIC |
| Serial Interface | Serial interface |
| Application | Automotive airbag satellite receiver |
| Automotive Classification | Automotive Systems |
| 封装 | PG-TSSOP-28 |
| Package Type | 28-pin TSSOP |
| 安装类型 | Surface mount |
| Shipping Format | Tape and reel (T/R) |
TLE7729TXUMA1 28-pin tssop 引脚配置指南
TLE7729TXUMA1（28-pin tssop 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： TLE7729TXUMA1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLE7729TXUMA1 适用于 6 应用s: Distributed Airbag Satellite Sensors, Automotive Restraint Control Modules, Multi-Axis Crash Sensing Nodes, Vehicle Sensor Network Backbones, Automotive Restraint Test Benchmarks, Crash-Data Acquisition Modules.
Distributed Airbag Satellite Sensors
The TLE7729TXUMA1 fits a remote vehicle sensing module that consolidates four SatRIC receiver channels into a serial link toward the central airbag controller. Its verified four-channel airbag satellite receiver function and 28-pin PG-TSSOP package allow the satellite electronics to occupy a standardized surface-mount footprint without a separate receiver for every sensor axis. The interface should be treated as an Infineon-specific satellite link rather than a generic serial port. Final deployment requires the authoritative pin table, timing limits, supply range, and automotive qualification data, none of which are numerically exposed in the supplied sources.
推荐
Automotive Restraint Control Modules
The TLE7729TXUMA1 is applicable to the satellite-interface section of a central airbag control unit that gathers measurements from remote crash sensors. Four-channel reception reduces the number of dedicated receiver blocks and wiring runs compared with several unrelated point-to-point sensor links. The dedicated SatRIC architecture is valuable when sensor timing, channel identification, and diagnostic behavior are defined by the Infineon vehicle system. Engineers must verify the controller’s supported device variant and complete timing specification from the manufacturer documentation before schematic release.
推荐
Multi-Axis Crash Sensing Nodes
A multi-axis crash-sensing node can use the TLE7729TXUMA1 where four related sensor channels must be consolidated behind a dedicated automotive satellite interface. The IC’s verified four-channel capability supports this arrangement without treating it as a generic SPI or CAN controller. Because the exact channel mapping, signal thresholds, and timing windows are absent from the supplied distributor evidence, PCB and firmware engineering should use the authoritative TLE7729 datasheet and its pin description. This ensures that mechanical sensor orientation corresponds to the correct electrical channel.
推荐
Vehicle Sensor Network Backbones
The TLE7729TXUMA1 can serve within a proprietary vehicle sensor network that connects remote satellite sensors to a central safety controller through SatRIC signaling. Its dedicated serial interface is more appropriate than a general-purpose transceiver when the network relies on Infineon-defined framing, channel behavior, and diagnostics. The four-channel package also supports compact harnesses by sharing a common receiver architecture. Integration is appropriate only where both the satellite node and controller have been validated against the same Infineon interface specification and automotive electromagnetic requirements.
推荐
Automotive Restraint Test Benchmarks
The TLE7729TXUMA1 is suitable for a laboratory interface fixture that emulates or exercises the receive side of an Infineon SatRIC satellite network. The 28-pin PG-TSSOP format supports repeatable PCB construction, and the dedicated four-channel function allows multiple sensor links to be tested with consistent timing assumptions. Such a bench should follow the manufacturer’s recommended application conditions rather than infer limits from a generic serial interface. Confirm supply voltage, termination, channel direction, fault injection, and SatRIC frame timing from the complete datasheet before applying vehicle-level transient waveforms.
推荐
Crash-Data Acquisition Modules
The TLE7729TXUMA1 may be used in an automotive crash-data acquisition path that receives sensor information from remote satellite modules before the restraint controller evaluates it. Dedicated SatRIC reception is preferable when the platform expects Infineon channel semantics and serialized event data rather than a transparent general-purpose byte stream. The verified four-channel and 28-pin TSSOP facts support this use, but no numerical bandwidth, latency, temperature, or diagnostic values are present in the supplied data. Production deployment therefore requires detailed timing and fault-mode verification against manufacturer documentation.
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推荐产品汇总
工程参考数据： TLE7729TXUMA1 ——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 | TLE7729 |
|---|---|---|
| Package | PG-TSSOP-28 | PG-TSSOP-28 |
| Brand | Infineon Technologies | Infineon Technologies |
| Receiver Channels | 4 channels | 4 channels |
| Interface Technology | SatRIC | SatRIC |
| Primary Function | Airbag satellite receiver IC | Airbag satellite receiver IC |
| Application Class | Automotive Systems | Automotive Systems |
| Pin Count | 28 pins | 28 pins |
关键差异点
- Dedicated four-channel satellite reception rather than general-purpose serial conversion （对比 Generic UART, SPI, or CAN transceiver)
- Automotive system specialization （对比 General-purpose industrial interface IC)
- Verified base-family relationship （对比 TLE7729)
设计说明
Do not substitute a generic serial transceiver for the TLE7729TXUMA1 merely because both use a PG-TSSOP-28 outline. The device is a dedicated four-channel SatRIC airbag satellite receiver, so channel mapping, frame timing, electrical levels, diagnostics, and fault behavior may be architecture-specific. Verify the complete terminal list, SatRIC timing, supply range, and recommended external components in the authoritative Infineon datasheet before considering any cross-reference.
Reserve the PG-TSSOP-28 land pattern exactly as defined by the Infineon package drawing and follow the manufacturer’s ground and supply-pin arrangement. Because the supplied evidence does not include the pin table, do not infer supply, ground, or serial-signal locations from the distributor package name. Place bypass capacitors and protection devices according to the reference layout once the missing schematic and layout guidance are obtained from the manufacturer documentation.
An automotive satellite-receiver board is part of a safety-related environment, so conducted and radiated emissions must be evaluated with the complete harness, sensor modules, and controller rather than on the receiver IC alone. Apply the manufacturer’s EMC recommendations, preserve return paths, and validate immunity to transient pulses at the vehicle interface. The retrieved sources identify automotive use but do not provide ESD, surge, or immunity ratings, so those values must not be assumed.
The TLE7729 family designation and the TXUMA1 ordering code are not automatically interchangeable without checking the ordering table. Confirm package variant, temperature grade, qualification status, production lifecycle, and shipping format for the exact suffix. A procurement substitution should also include date-code and traceability review because automotive-interface components may be subject to change-control and lot-management requirements.
合规信息
The verified sources identify automotive-system use but do not expose RoHS, REACH, AEC-Q100 grade, lead-free, halogen-free, or conflict-minerals declarations. These fields remain unknown rather than being inferred from the automotive description.
