TLE9877QXW40XUMA3

Overview

The TLE9877QXW40XUMA3 is a single-chip three-phase motor driver from Infineon's TLE987x family, designed for automotive applications. It integrates an ARM Cortex-M3 core operating at up to 40 MHz with 64 kB Flash and 6 kB RAM. The device features six integrated NFET drivers optimized for external power MOSFETs, a charge pump for low-voltage operation, and a LIN transceiver. Key peripherals include an 8-bit ADC (10 channels) and a 10-bit ADC (8 channels), plus current sensing capabilities. It operates on a supply voltage of 5.5 V to 28 V within a temperature range of -40°C to +175°C in a VQFN-48 package.

Feature Summary

• Integrates ARM Cortex-M3 core (40 MHz) with 64 kB Flash and 6 kB RAM
• Six fully integrated NFET drivers with charge pump for external MOSFET control
• Built-in LIN 2.2 transceiver and dual UART interfaces
• Dual ADC modules: 8-bit (10 channels) and 10-bit (8 channels)
• Extended operating temperature range up to 175°C junction temperature

Applications

• Engine cooling fans
• Water pumps
• Oil pumps
• BLDC pumps and fans
• Sensor-less and sensor-based BLDC motor applications controlled by LIN or PWM

Procurement Notes

Verify the specific suffix 'A3' against official Infineon documentation to confirm tape-and-reel packaging details and any minor manufacturing revisions. Ensure compatibility with AEC-Q100 Grade 0 requirements if used in under-hood environments. Cross-reference the Mouser part number 726-TLE9877QXW40XUM3 for distributor-specific handling instructions.

Selection Notes

Select this component when a highly integrated solution for under-hood BLDC motor control is required. It is suitable for applications demanding high thermal performance (up to 175°C) and robust communication via LIN bus. Compare with the TLE9877QXA40 if a different package type is preferred, noting that the XW variant specifically denotes the VQFN-48 form factor.

Part Context

This part belongs to the TLE987x embedded power IC family, which combines microcontroller functionality with power stage drivers. It is distinct from the TLE9879 series, which offers higher memory capacity (128 kB Flash). The TLE9877 series is optimized for cost-effective, space-constrained automotive motor drives requiring field-oriented control algorithms.

Replacement Considerations

The TLE9877QXW40XUMA1 is a verified alternative within the same product family offering identical functional specifications and pinout compatibility.