L9370TR

Specialized ICS Overview

The L9370TR is an automotive-grade integrated circuit designed for electric parking braking applications, specifically targeting cable-puller or Motor Gear Unit (MGU) configurations. It features two H-bridge driver stages capable of driving eight external FETs for rear wheel brake actuators. The device includes ten fully differential amplifiers with low offset and precise gain, alongside ten sigma-delta ADC channels for synchronized motor voltage and current acquisition. It operates with a 32-bit SPI interface at 10 MHz with CRC support and provides overcurrent protection with programmable thresholds.

Specialized ICS Feature Summary

• Dual H-bridge driver stages for controlling eight external power NFETs
• Ten integrated fully differential amplifiers with self-test capability
• Ten separate ADC channels for digital processing of motor measurements
• AEC-Q100 qualified with ISO26262 functional safety compliance

Specialized ICS Applications

• Electric Parking Braking (EPB) systems
• Cable-puller actuator configurations
• Motor Gear Unit (MGU) implementations

Specialized ICS Procurement Notes

Verify the package designation matches the required 64-TQFP form factor. Confirm that the Tape & Reel packaging aligns with automated assembly requirements. Ensure the AEC-Q100 qualification meets specific project reliability standards. Check for any recent product change notifications regarding manufacturing sites or materials.

Specialized ICS Selection Notes

Select this component when designing EPB systems requiring integrated motor control and high-precision feedback. The built-in differential amplifiers and ADCs reduce external component count for current sensing. Verify that the 5.5 V minimum battery input voltage supports the target vehicle's electrical architecture. Ensure the 64-pin TQFP footprint fits the PCB layout constraints.

Specialized ICS Part Context

This part belongs to STMicroelectronics' specialized automotive IC portfolio focused on chassis and safety systems. It is distinct from general-purpose PMICs by its dedicated integration of power drivers and analog signal conditioning for braking actuators. The TR suffix indicates the tape and reel packaging variant.

Specialized ICS Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Designers should evaluate pin-to-pin compatibility and software register mapping if considering alternative braking controllers.