TLE9843QXXUMA2

Overview

The TLE9843QXXUMA2 is an automotive-grade microcontroller from Infineon's TLE984x family, designed for embedded power applications. It integrates an ARM Cortex-M0 core operating at a maximum frequency of 40 MHz with a 32-bit data bus. The device features 52 kB of Flash program memory and 4 kB of RAM. It supports supply voltages between 3 V and 28 V and operates within a temperature range of -40°C to +150°C. Key peripherals include 12 ADC channels with 8-bit and 10-bit resolution, three timers/counters, and interfaces such as LIN, SSC, and UART. The component is housed in a VQFN-48 package.

Feature Summary

• ARM Cortex-M0 core with 40 MHz maximum clock frequency
• Integrated embedded power capabilities for automotive use
• AEC-Q100 qualified for automotive reliability standards
• Wide operating voltage range from 3 V to 28 V

Applications

• Automotive body electronics control modules
• Embedded power management systems
• LIN bus network nodes
• Motor control applications requiring integrated power stages

Procurement Notes

Verify the specific suffix 'UMA2' against official Infineon documentation to confirm tape-and-reel packaging details and environmental compliance status. Ensure compatibility with existing PCB footprints for the VQFN-48 package. Cross-reference the exact part number with authorized distributors to avoid counterfeit components, as automotive MCUs require strict supply chain verification.

Selection Notes

Select this MCU when an automotive-compliant controller with integrated power drivers is required. The TLE9843 offers a balance of processing power and peripheral integration suitable for cost-sensitive automotive applications. Compare memory sizes and I/O counts against requirements; if higher performance or additional interfaces are needed, consider the TLE989x series. Verify thermal dissipation capabilities for the VQFN-48 package in the target enclosure.

Part Context

This component belongs to the Infineon TLE984x family of single-chip solutions combining MCU and power technology. It is distinct from the TLE987x and TLE989x families, which offer different core architectures (Cortex-M3) and memory capacities. The TLE9843 targets entry-level to mid-range automotive functions where integrated power switching reduces external component count.

Replacement Considerations

Direct pin-to-pin replacements within the same family may include other TLE984x variants with differing memory sizes. For functional equivalents with higher performance, the TLE9877QXA40XUMA4 (Cortex-M3, 64 kB Flash) or TLE9893QKW62SXUMA1 (Cortex-M3, 256 kB Flash) are available but require software adaptation due to architectural differences.