TLE9871QXA20XUMA4

Overview

The TLE9871QXA20XUMA4 is an ARM Cortex-M3 based microcontroller from Infineon's MOTIX family, designed for embedded power applications. It integrates a 32-bit core with 36 kB of Flash program memory and 3 kB of RAM. The device operates within a supply voltage range of 5.5 V to 28 V and supports interfaces including PWM, SSC, and UART. It features 8 or 10 ADC channels with 8-bit or 10-bit resolution. Qualified under AEC-Q100 standards, it functions reliably between -40°C and +150°C in a 48-pin VQFN package.

Feature Summary

• Integrates an ARM Cortex-M3 processor core running at a maximum clock frequency of 24 MHz.
• Includes 36 kB of Flash memory and 3 kB of data RAM for code and variable storage.
• Features integrated communication interfaces such as PWM, SSC, and UART.
• Equipped with multiple ADC channels (8 or 10) supporting 8-bit and 10-bit resolution.

Applications

• Automotive sensorless BLDC motor control
• Fuel pump driver systems
• HVAC blower motor control
• Water pump applications

Procurement Notes

Verify the specific suffix XUMA4 against official Infineon documentation to confirm tape-and-reel packaging specifications and moisture sensitivity level. Ensure compatibility with existing design files, as ordering suffixes may indicate variations in reel quantity or handling instructions without altering the functional silicon characteristics.

Selection Notes

Select this component when a 24 MHz ARM Cortex-M3 solution is required for automotive motor control tasks. Compare the 36 kB Flash capacity against application firmware size requirements. Verify that the 5.5 V to 28 V operating voltage aligns with the target system's power rail. Confirm that the 48-VQFN package fits the PCB layout constraints.

Part Context

This part belongs to the TLE987x product family, which combines ARM Cortex-M3 MCUs with embedded power drivers. It is distinct from higher-memory variants like the TLE9879 (128 kB Flash) and lower-speed variants. The TLE9871 series is optimized for cost-sensitive automotive applications requiring robust motor control capabilities.

Replacement Considerations

Publicly confirmed substitutes include TLE9871QXA20XUMA2. Verify pinout and software compatibility before transitioning, as these parts share the same core architecture and peripheral set.