L99MH98-TR

Overview

The L99MH98-TR is an automotive octal half-bridge pre-driver designed to control up to sixteen N-channel MOSFETs. It operates within a supply voltage range of 6 V to 28 V and draws a typical operating current of 9 mA. The device features a 24-bit SPI interface for configuration and diagnostics, supporting eight independent half-bridges or four H-bridges. It is housed in a VQFN-48 package with wettable flanks and is qualified to AEC-Q100 standards for operation between -40°C and +150°C.

Feature Summary

• Integrated octal half-bridge pre-driver capable of controlling up to sixteen external N-channel MOSFETs
• Supports indirect current measurement on external MOSFETs to eliminate the need for shunt resistors
• Provides detailed diagnostic information via SPI status registers including supply and charge pump voltage monitoring
• Ensures ASIL-B safety integrity level compliance according to ISO 26262 through comprehensive protection features

Applications

• Automotive power seat control systems
• DC motor control applications
• Power trunk and tailgate mechanisms using generator mode
• Sunroof and sliding door actuators

Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel packaging quantity of 2500 units. Confirm that the component meets AEC-Q100 qualification requirements for your automotive application environment. Ensure compatibility with the VFQFN-48L package dimensions and thermal pad specifications during PCB layout design.

Selection Notes

Select this component when designing systems requiring high channel density for driving multiple MOSFETs from a single controller. It is suitable for applications needing robust fault detection and indirect current sensing capabilities. Consider its ASIL-B compliance if functional safety standards are mandatory for the target market.

Part Context

This part belongs to STMicroelectronics' portfolio of smart power devices dedicated to motor and motion control. It serves as a pre-driver stage, managing the gate currents for external power switches rather than driving loads directly. The device integrates advanced diagnostic and protection logic to enhance system reliability in harsh automotive environments.

Replacement Considerations

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