As automotive electronic architectures evolve toward domain controllers and zone controllers, the demand for compact, highly integrated motor driver chips with functional safety capabilities is growing increasingly urgent. The Texas Instruments (TI) DRV8243, part of the DRV824x-Q1 series, is a fully integrated H-bridge driver designed specifically for automotive body control, powertrain, and cabin comfort systems. Shenzhen Mingjiada Electronics Co., Ltd. currently has this model in stock, providing reliable support for your projects.
Product Overview: Highly Integrated Automotive-Grade H-Bridge Driver Solution
The DRV8243 is an automotive-grade H-bridge driver certified to AEC-Q100 Grade 1 (operating temperature range: -40°C to +125°C). It integrates the power stage, gate driver, charge pump, and current sensing and protection circuits within a compact 14-pin VQFN-HR package.
The chip supports a wide input voltage range of 4.5 V to 35 V (40 V absolute maximum) and is capable of delivering peak currents up to 12 A. Its unique design allows it to be configured as a full-bridge driver to drive brushed DC motors, or as two independent half-bridge drivers to simultaneously control two solenoid or LED loads, providing exceptional flexibility for system design.
DRV8243 Key Technologies and Specifications
Core Performance Metrics
On-Resistance (Ron): In the VQFN-HR package, the total on-resistance (high-side and low-side combined) is typically 84 mΩ, effectively reducing power loss and heat generation.
PWM Frequency: Supports PWM frequencies up to 25 kHz and features automatic dead-time insertion, accommodating a variety of control strategies.
Logic Compatibility: Supports 3.3V and 5V logic inputs, facilitating direct interfacing with various MCUs.
Intelligent Integration and Diagnostics
Integrated Current Sensing: Features built-in high-side current sensing that eliminates the need for external shunt resistors. An analog signal proportional to the load current is output via the IPROPI pin, which can be used for stall detection and closed-loop control.
Comprehensive Protection Mechanisms: Includes power supply undervoltage (VM) monitoring, overcurrent protection (OCP), over-temperature protection (TSD), and open-circuit/short-circuit load diagnostics. Fault information can be fed back to the host controller via the nFAULT pin.
Ultra-Low Standby Power Consumption: At 25°C, the typical sleep mode current is only 1 µA, meeting the automotive industry’s stringent requirements for low quiescent current.
Typical Applications: Core Automotive Electronics Drives
With its powerful current output and compact size, the DRV8243 delivers outstanding performance in the following automotive applications:
Body Control Module (BCM): Drives solenoids or small motors for door locks, trunk locks, and other components; its load diagnostics feature enables real-time detection of circuit faults.
Seat and Rearview Mirror Adjustment Modules: Controls brushed DC motors for seat position adjustment, rearview mirror folding, and angle adjustment; IPROPI current feedback accurately determines whether the position has been reached.
Powertrain and Chassis Systems: Suitable for electronic shifters (E-Shifters), throttle control in gasoline engine systems, and auxiliary functions in on-board chargers (OBCs).
Thermal Management Systems: Drives cooling valves or small pump motors; its 12A peak current capacity is sufficient to handle typical medium-power loads.
Mingjiada Electronics Offers In-Stock Supply
Shenzhen Mingjiada Electronics Co., Ltd. has been deeply involved in the electronic component distribution sector for many years, boasting extensive channel resources and in-stock inventory. Currently, we are supplying large quantities of genuine DRV8243SQRXYRQ1 devices. This component features a 14-VQFN-HR package with wettable side flanks, facilitating automated optical inspection (AOI) and improving production yield.
Contact us for samples or a quote:
Hotline: +86-755-83294757 / 13410018555
Email: sales@hkmjd.com
Address: Rooms 1239-1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province
We are committed to providing reliable chip supplies to customers in the automotive electronics, industrial control, and other sectors. Feel free to call us anytime for inquiries!
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