Model No: DRV8242SQRHLRQ1
Texas Instruments DRV8242SQRHLRQ1
Manufacturer: Texas Instruments
SEMICON NO.: DRV8242SQRHLRQ1
Package: 20-VQFN
Stock: In stock
Description: Bipolar Motor Driver Bi-CMOS PWM SPI
SEMICON NO.: DRV8242SQRHLRQ1
Package: 20-VQFN
Stock: In stock
Description: Bipolar Motor Driver Bi-CMOS PWM SPI
Quantity :
| Mfr | Texas Instruments |
| Device Type | Automotive H-Bridge Driver |
| Operating Voltage | 4.5 V to 35 V |
| Output Current | 6 A (Peak) |
| On-Resistance | 250 mΩ (QFN package) |
| Sleep Current | 1.3 µA typical at 25°C |
| Logic Input Support | 3.3 V and 5 V compatible |
| PWM Frequency (Max) | 25 kHz |
| Current Regulation | Configurable |
| Operating Temperature | –40°C to +125°C |
| Package | 20-VQFN |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The DRV8242SQRHLRQ1 is an AEC-Q100-qualified automotive 40-V, 6-A fully integrated H-bridge motor driver from Texas Instruments' DRV824x-Q1 scalable family, packaged in a compact 20-VQFN (RHL) housing measuring 3.50 mm x 4.50 mm. This SPI-controlled (S-variant with internally generated logic supply) BiCMOS device operates from 4.5 V to 35 V (40-V absolute maximum), integrating an N-channel H-bridge power stage, charge pump regulator, high-side current mirror sensing, proportional current output (IPROPI), configurable current regulation, and comprehensive protection circuitry. It supports PWM control frequencies up to 25 kHz with automatic dead time assertion, operates across -40°C to +125°C ambient, and delivers functional-safety-capable documentation for ISO 26262 system designs.
Applications
The DRV8242SQRHLRQ1 targets a wide range of automotive brushed DC motor and actuator applications. Primary deployments include door modules controlling window lifts, mirror adjustment, and central locking mechanisms; seat modules for position adjustment and lumbar support motors; wiper modules driving windshield wiper motors across variable speeds; trunk/tailgate release actuators; and Body Control Modules (BCM) managing multiple auxiliary loads. Additional applications include HVAC blower and flap motors, fuel door locks, gas engine systems, water pumps, and solenoid drivers where integrated diagnostics and functional safety capability are required.
The DRV8242SQRHLRQ1 targets a wide range of automotive brushed DC motor and actuator applications. Primary deployments include door modules controlling window lifts, mirror adjustment, and central locking mechanisms; seat modules for position adjustment and lumbar support motors; wiper modules driving windshield wiper motors across variable speeds; trunk/tailgate release actuators; and Body Control Modules (BCM) managing multiple auxiliary loads. Additional applications include HVAC blower and flap motors, fuel door locks, gas engine systems, water pumps, and solenoid drivers where integrated diagnostics and functional safety capability are required.
Frequently Asked Questions
Q: Can the DRV8242SQRHLRQ1 control multiple motors via SPI?
Yes, daisy-chain SPI operation enables a single MCU to control multiple DRV8242 devices, reducing GPIO requirements for multi-motor applications.
Q: What is the maximum continuous output current?
6 A maximum in the VQFN package, limited by thermal performance; automotive Ta=85°C conditions typically reduce usable current, requiring thermal evaluation with actual load profiles.
Q: Is the device functionally safety capable?
Yes, TI provides FIT rate, failure mode distribution, and pin FMA documentation to support ISO 26262 functional safety system development.
Q: Can the DRV8242SQRHLRQ1 control multiple motors via SPI?
Yes, daisy-chain SPI operation enables a single MCU to control multiple DRV8242 devices, reducing GPIO requirements for multi-motor applications.
Q: What is the maximum continuous output current?
6 A maximum in the VQFN package, limited by thermal performance; automotive Ta=85°C conditions typically reduce usable current, requiring thermal evaluation with actual load profiles.
Q: Is the device functionally safety capable?
Yes, TI provides FIT rate, failure mode distribution, and pin FMA documentation to support ISO 26262 functional safety system development.
Alternative H-bridge driver Models
● DRV8245SQRHLRQ1: High-current variant with ~32 mΩ RON delivering up to 32-A output for heavy-load automotive actuators.
● DRV8242HQRHLRQ1: Hardwired (HW) control variant with PWM/PH-EN inputs for applications not requiring SPI programmability.
● DRV8242PQRHLRQ1: SPI (P) variant with external VDD logic supply for systems experiencing VM supply dips.
● DRV8263SQRHLRQ1: 65-V extended-voltage H-bridge driver for 48-V automotive systems and higher-voltage industrial loads.
● DRV8245SQRHLRQ1: High-current variant with ~32 mΩ RON delivering up to 32-A output for heavy-load automotive actuators.
● DRV8242HQRHLRQ1: Hardwired (HW) control variant with PWM/PH-EN inputs for applications not requiring SPI programmability.
● DRV8242PQRHLRQ1: SPI (P) variant with external VDD logic supply for systems experiencing VM supply dips.
● DRV8263SQRHLRQ1: 65-V extended-voltage H-bridge driver for 48-V automotive systems and higher-voltage industrial loads.
