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Product Detailed Parameters
- Description：AUTOMOTIVE 40-V 46-A HALF BRIDGE
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge
- Interface：PWM, SPI
- Technology：Bi-CMOS
- Step Resolution：-
- Applications：-
- Current - Output：46A
- Voltage - Supply：4.5V ~ 35V
- Voltage - Load：4.5V ~ 35V
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-VFQFN Exposed Pad
- Supplier Device Package：16-VQFN-HR (3.5x5.5)
- Grade：Automotive
- Qualification：-
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Overview
The DRV8145SQRXZRQ1 is an automotive-grade half-bridge driver from Texas Instruments, designed for high-power applications. It features a 40-V supply voltage range and delivers up to 46 A of output current. The device integrates current sensing and feedback mechanisms, supporting precise motor control. Operating within a temperature range of -40°C to +125°C, it utilizes a VQFN-14 package suitable for surface mount installation. This component is part of the DRV814x-Q1 family, engineered for robust performance in demanding automotive environments.
Feature Summary
- Integrates current sensing and feedback for enhanced control accuracy
- Supports high-output current capability up to 46 A
- Designed for wide input voltage ranges in automotive systems
Applications
- Automotive fuel injection systems
- High-power solenoid control
- Valve actuation in engine management
Procurement Notes
Verify the specific suffix 'RXZ' against official Texas Instruments documentation to confirm pinout and thermal characteristics. Ensure compatibility with automotive Grade 1 requirements. Confirm that the integrated current sensing aligns with system design needs before procurement.
Selection Notes
Select this component when high current handling up to 46 A is required for single-phase loads. The integrated feedback loop simplifies design compared to discrete solutions. Consider the VQFN-14 package constraints for PCB layout and thermal dissipation strategies in confined automotive spaces.
Part Context
This device belongs to the DRV814x-Q1 series, which focuses on fully integrated half-bridge drivers using BiCMOS technology. It complements other TI motor drivers by offering higher current density than standard variants, targeting applications requiring significant power switching in compact form factors.
Replacement Considerations
Check the DRV8143SQRXYRQ1 for lower current requirements (20 A). Verify if the DRV8145HQRXZRQ1 variant offers identical electrical specifications with potential packaging differences.
