TLE9831QV Equivalent & Substitute Parts

Part Overview

The TLE9831QV is an embedded motor driver IC manufactured by Infineon Technologies, designed for automotive applications with integrated power management capabilities. This device features an XC800 core processor with 36kB FLASH memory and operates across a wide voltage range of 3V to 27V, supporting temperatures from -40°C to 150°C. The product is currently classified as obsolete, necessitating identification of functionally compatible alternatives for ongoing system support and new designs requiring equivalent performance characteristics.

Substiute Parts

TLE9831QV

Infineon TechnologiesIn Stock: 1136TLE9831QV Datasheet

Current PartRFQ

TLE9842QXXUMA1

Infineon TechnologiesIn Stock: 3395TLE9842QXXUMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE9831QV is determined by strict alignment of the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 48-VFQFN Exposed Pad package (PG-VQFN-48-31) to ensure mechanical and electrical compatibility with existing PCB layouts.

Voltage Supply Range: The substitute must support the full operating voltage range of 3V to 27V or a range that encompasses this specification.

Interface Protocols: The substitute must maintain support for LIN, SSI, and UART interfaces to preserve communication compatibility with system architecture.

Operating Temperature Range: The substitute must support -40°C to 150°C junction temperature to meet automotive environmental requirements.

Automotive Grade: The substitute must carry automotive qualification to maintain system reliability and compliance standards.

Memory Configuration: Program memory of 36kB FLASH is a baseline requirement for code storage compatibility.

The TLE9842QXXUMA1 meets all these criteria, providing a direct functional substitute while offering enhanced capabilities in processor architecture and I/O count.

Parameter Comparison

Engineering Selection Recommendations

The TLE9842QXXUMA1 is the qualified substitute for the obsolete TLE9831QV. Both devices share identical package geometry (48-VFQFN Exposed Pad), matching voltage supply ranges (with TLE9842QXXUMA1 extending to 28V), and equivalent operating temperature specifications. Both maintain automotive-grade classification with identical interface support (LIN, SSI, UART) and 36kB FLASH program memory.

The TLE9842QXXUMA1 carries AEC-Q100 automotive qualification and ROHS3 compliance, providing enhanced regulatory assurance. The substitute offers increased I/O capability (10 versus 5) and slightly reduced RAM (2K x 8 versus 3.25K x 8), which may require firmware optimization but does not preclude functional equivalence for most motor driver applications.

The active product status of TLE9842QXXUMA1 ensures long-term availability and supply chain stability compared to the obsolete TLE9831QV.

Frequently Asked Questions (FAQ)

Q: Can the TLE9842QXXUMA1 directly replace the TLE9831QV in existing designs?

A: Yes, provided the firmware accommodates the reduced RAM size (2K x 8 versus 3.25K x 8) and the additional I/O pins (10 versus 5) are either utilized or left unconnected. The identical package footprint (48-VFQFN Exposed Pad) and matching electrical specifications ensure PCB-level compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete versus active), processor architecture (XC800 versus ARM Cortex-M0), I/O count (5 versus 10), RAM capacity (3.25K x 8 versus 2K x 8), and compliance certifications (AEC-Q100 and ROHS3 for the substitute). Functional motor driver capability and interface protocols remain equivalent.

Q: Are both parts qualified for automotive applications?

A: Yes. Both carry automotive grade classification. The TLE9842QXXUMA1 additionally specifies AEC-Q100 qualification, providing explicit automotive reliability certification.

Q: Does the package remain the same for both parts?

A: Yes. Both use the 48-VFQFN Exposed Pad package with supplier device package designation PG-VQFN-48-31, ensuring identical PCB layout compatibility.

Q: What is the voltage supply compatibility between these parts?

A: The TLE9831QV operates at 3V to 27V, while the TLE9842QXXUMA1 operates at 3V to 28V. The substitute supports the full operating range of the original part with a 1V extension at the upper limit.

Q: Is firmware modification required when substituting these parts?

A: Firmware review is necessary to confirm compatibility with the reduced RAM size (2K x 8 versus 3.25K x 8) and to address the increased I/O capability (10 versus 5). The identical FLASH memory size (36kB) and interface protocols minimize modification scope.