TLE8458GUXUMA1 - 10.4 kbps LIN Transceiver | Infineon
MPN: TLE8458GUXUMA1 ✓ ActiveTLE8458GUXUMA1 Overview
A LIN transceiver is an interface IC that combines a LIN bus transmitter, receiver, and required bus-interface circuitry. LIN, or Local Interconnect Network, is a low-cost serial communication network used for distributed automotive body and comfort electronics. The integrated voltage regulator places the device in the power-management IC hierarchy while its communication functions place it in the interface-IC hierarchy.
The TLE8458GUXUMA1 is identified as a LIN Transceiver with Integrated Vreg, 5 V output, 10.4 kbit/s data rate, and 8-pin DSO package. Its integrated regulator and LIN transceiver are intended to reduce the number of discrete components required in LIN nodes. The same TLE8458Gx family is described as suitable for supplying microcontrollers and driving a LIN bus simultaneously.
The device is applicable in vehicle body-control modules, door and window controllers, seat and climate-control electronics, lighting modules, sensor interfaces, and other distributed ECU nodes. Its 5 V regulator can support a controller that communicates through the LIN physical layer, while the transceiver handles the bus-side signal interface.
A key design consideration is the relationship between the LIN transceiver supply, the regulated 5 V rail, bus termination, and the selected microcontroller. Follow the manufacturer datasheet for pin assignments, external component requirements, timing values, and layout recommendations. Keep the LIN interface and regulator grounding path organized to reduce coupling between the communication node and sensitive supply circuitry.
This page consolidates the confirmed product identity, family-level alternatives, application guidance, and design considerations into a concise engineering reference for evaluating the TLE8458GUXUMA1 in LIN-based automotive electronic systems.
Drop-in alternatives for TLE8458GUXUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
TLE8458GV33
✅ Drop-In📋 Reference alternative (not in catalog)
TLE8458GU
✅ Drop-In📋 Reference alternative (not in catalog)
TLE8458GUV33
✅ Drop-In📋 Reference alternative (not in catalog)
TLE8458GUXUMA1 Specifications
| Product Type | LIN transceiver with integrated voltage regulator |
| LIN Bus Data Rate | Up to 10.4 kbit/s |
| Integrated Regulator Output | 5 V |
| Number of LIN Channels | 1 |
| Transceiver Configuration | Transceiver half |
| Package | PG-DSO-8-16 |
| Number of Terminals | 8 |
| Terminal Pitch | 1.27 mm |
| Terminal Form | Gull wing |
| Output Voltage Tolerance | 2 % |
| Regulator Topology | Fixed positive single-output LDO regulator |
| Automotive Qualification | Automotive application |
| Primary Bus | LIN bus |
| Integrated Supply Function | Microcontroller supply and LIN bus operation |
| Mounting Type | Surface mount |
TLE8458GUXUMA1 pg-dso-8-16 Pin Configuration Guide
Pin configuration for TLE8458GUXUMA1 (pg-dso-8-16 package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TLE8458GUXUMA1.
Refer to the datasheet for full pin configuration.
Typical Applications
TLE8458GUXUMA1 is suitable for 6 applications: Automotive Body-Control Module, Door and Window Control Unit, Automotive Lighting Controller, Seat and Climate-Control Electronics, Automotive Sensor Interface, High-Reliability Automotive ECU.
Automotive Body-Control Module
The TLE8458GUXUMA1 fits a body-control module that connects a microcontroller to a LIN subnetwork while also requiring a local 5 V rail. Its 10.4 kbit/s LIN rate supports the relatively low communication bandwidth typical of distributed body electronics, while the integrated regulator reduces the number of separate supply components. A design can place the transceiver near the LIN connector and route the regulated 5 V output to the controller. Confirm bus termination, transceiver load limits, thermal performance, and the exact package land pattern in the manufacturer datasheet before production release.
Recommended
Door and Window Control Unit
A door or window ECU is a natural application for the TLE8458GUXUMA1 because it combines the LIN physical interface with a 5 V supply for local control electronics. The 10.4 kbit/s data rate is appropriate for switch-position, motor-command, and diagnostic signaling over a LIN branch. Using the integrated regulator can simplify the power architecture when the node lacks a suitable 5 V rail. The implementation should include correct LIN termination, protection appropriate to the vehicle environment, and a PCB layout that separates bus routing from sensitive control paths.
Recommended
Automotive Lighting Controller
The TLE8458GUXUMA1 can provide the LIN interface and local 5 V supply in a distributed automotive lighting controller. A lighting node may need to exchange diagnostic or control commands with a central body module while operating actuators or indicator drivers locally. The integrated 5 V regulator reduces the board area required for a separate regulator stage, and the 10.4 kbit/s LIN rate aligns with low-bandwidth command traffic. Verify regulator current capability, thermal rise, transient behavior, and protection requirements against the operating load.
Recommended
Seat and Climate-Control Electronics
Seat-position, heating, ventilation, and climate-control nodes often use distributed serial links to reduce wiring complexity. The TLE8458GUXUMA1 combines a 10.4 kbit/s LIN transceiver with a fixed 5 V regulator, allowing a microcontroller and local actuator interface to share a compact node design. Its integration is useful where enclosure space and component count are constrained. Confirm that the available regulator current covers the local electronics, and validate start-up, bus fault, and thermal behavior in the final automotive electrical environment.
Recommended
Automotive Sensor Interface
A LIN-connected sensor interface can use the TLE8458GUXUMA1 to bridge a local microcontroller to the vehicle network and provide a 5 V supply to low-power sensing circuitry. The 10.4 kbit/s communication rate supports configuration and diagnostic data rather than high-volume multimedia traffic. Integrating the regulator is especially helpful in compact modules where a separate supply IC would increase footprint. The designer should account for sensor current, regulator dissipation, LIN bus capacitance, and protection requirements at the wiring boundary.
Recommended
High-Reliability Automotive ECU
The TLE8458GUXUMA1 is appropriate for compact ECU nodes that must combine bus communication and regulated local power in one device. Its integrated voltage regulator supports the TLE8458Gx family's stated use case of simultaneously supplying a microcontroller and driving a LIN bus. This architecture can lower component count and simplify board partitioning in body, comfort, and sensor modules. For a high-reliability program, verify the exact temperature grade, automotive qualification status, EMC limits, and fault behavior in the current manufacturer documentation.
Recommended
Engineering reference data for TLE8458GUXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLE8458GV33 | TLE8458GU | TLE8458GUV33 |
|---|---|---|---|---|
| Package | PG-DSO-8-16 | PG-DSO-8-16 | PG-DSO-8-16 | PG-DSO-8-16 |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Product Type | LIN transceiver with integrated voltage regulator | TLE8458Gx-family LIN transceiver with integrated voltage regulator | TLE8458Gx-family LIN transceiver with integrated voltage regulator | TLE8458Gx-family LIN transceiver with integrated voltage regulator |
| LIN Channels | 1 | 1 | 1 | 1 |
| Maximum LIN Data Rate | 10.4 kbit/s | 10.4 kbit/s | 10.4 kbit/s | 10.4 kbit/s |
| Integrated Regulator | Yes, fixed 5 V output | Yes, output configuration requires verification | Yes, output configuration requires verification | Yes, output configuration requires verification |
| Terminal Count | 8 | 8 | 8 | 8 |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Automotive Application | Yes | Yes | Yes | Yes |
Key Differentiators
- Combines LIN communication and local power regulation (vs TLE7259-2GE)
- Single-device LIN node implementation (vs TLE8458GV33)
- Compact automotive interface footprint (vs TLE8458GUV33)
Design Notes
Place the TLE8458GUXUMA1 near the LIN connector or branch node to minimize sensitive bus-trace exposure. Follow the manufacturer datasheet for the LIN, supply, regulator-output, and ground connection layout. Keep the regulator's input and output return paths compact and preserve the recommended grounding arrangement so switching activity from local circuitry does not disturb the LIN interface.
Calculate the regulator's dissipation from the actual input-to-output voltage difference and load current. Estimated: use Pd = (VIN - 5 V) x ILOAD, then compare the resulting junction-temperature estimate with the package and board thermal limits. Confirm maximum regulator current and startup behavior in the manufacturer datasheet before adding sensors, indicators, or actuators to the 5 V output.
Do not treat a same-family ordering suffix as proof of electrical equivalence. Compare the exact regulator voltage, output tolerance, package pad construction, temperature rating, and terminal assignment for TLE8458GUXUMA1 and the selected derivative. The stand-alone TLE7259-2GE is described as pin compatible with the TLE8458Gx family, but it does not provide the same integrated regulator function and is not included as a drop-in alternative.
Keep the LIN route short and away from high-current switching nodes, display clocks, and other sources of electromagnetic interference. Use the application information in the TLE8458 datasheet for bus termination and external component selection. Validate radiated and conducted emissions, bus fault recovery, and ground-offset tolerance on the completed PCB because the integrated regulator and LIN interface share a compact automotive node.
Compliance Information
The product is identified for automotive applications, but no specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was confirmed for this ordering code.
