L99H01QFTR

Overview

The L99H01QFTR is an automotive-grade motor bridge driver designed to control four external N-channel MOS transistors in a bridge configuration for DC-motor applications. It features a central two-stage charge pump, SPI interface, and integrated current sense amplifier. The device operates with a supply voltage of 6 V to 28 V and supports PWM operation up to 30 kHz. It includes diagnostic capabilities, thermal sensing interfaces, and reverse battery protection control.

Feature Summary

• Integrated standard Serial Peripheral Interface (SPI) for output control and diagnostic information retrieval
• Central two-stage charge pump enabling full RDSon performance down to 6 V with normal level MOSFETs
• Configurable current sense amplifier with zero adjust capability for end-of-line trimming
• Interface pin dedicated to sensing circuitry of external MOSFETs with embedded thermal sensors

Applications

• DC-motor driving in automotive applications
• Motor bridge driver configurations requiring external N-channel MOSFETs
• Automotive systems utilizing PWM operation up to 30 kHz

Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND) before finalizing any engineering specifications or long-term production plans. Confirm that the specific package variant matches the required PCB footprint, as the L99H01 family includes different packaging options such as PowerSSO-36 and LQFP-32. Ensure compatibility with existing design constraints given the potential obsolescence of this specific part number.

Selection Notes

Select this component when designing automotive DC motor drives that require precise control via SPI and integration with external power stages. The device is suitable for applications needing programmable free-wheeling management and robust diagnostic feedback through its configurable current sense amplifier. Consider the operating temperature range and voltage requirements to ensure alignment with system specifications.

Part Context

The L99H01 belongs to STMicroelectronics' portfolio of smart power devices tailored for automotive environments. This series focuses on providing integrated solutions for motor control, combining high-voltage processing with low-voltage logic interfaces. The QFTR suffix indicates the specific tape-and-reel packaging format within the broader L99H01 product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.