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DRV8873-Q1

DRV8873-Q1 Series

Automotive, current sensing 40V, 10A H-bridge motor driver with integrated current feedback

Manufacturer: Texas Instruments

Catalog

Automotive, current sensing 40V, 10A H-bridge motor driver with integrated current feedback

Key Features

AEC-Q100 qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C, TAN-channel H-bridge motor driverDrives one bidirectional brushed DC motorTwo unidirectional brushed DC motorsSolenoids or other resistive and inductive loads4.5-V to 38-V Operating voltage range10-A Peak current driveLow HS + LS RDS(ON)150 mΩ at TJ= 25°C, 13.5 V250 mΩ at TJ= 150°C, 13.5 VIntegrated current sensingProportional current output (IPROPI)Configurable control interfacePH/ENPWM (IN1/IN2)Independent half-bridge controlSupports 1.8-V, 3.3-V, 5-V logic inputsSPI or hardware interface optionsSmall package and footprint24 HTSSOP PowerPAD™ IC packageProtection featuresVM undervoltage lockout (UVLO)Charge pump undervoltage (CPUV)Overcurrent protection (OCP)Output short to battery and short to ground protectionOpen load detectionThermal shutdown (TSD)Fault condition output (nFAULT / SPI)Spread spectrum clocking for low electromagnetic interference (EMI)Functional Safety-CapableDocumentation available to aid functional safety system designAEC-Q100 qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C, TAN-channel H-bridge motor driverDrives one bidirectional brushed DC motorTwo unidirectional brushed DC motorsSolenoids or other resistive and inductive loads4.5-V to 38-V Operating voltage range10-A Peak current driveLow HS + LS RDS(ON)150 mΩ at TJ= 25°C, 13.5 V250 mΩ at TJ= 150°C, 13.5 VIntegrated current sensingProportional current output (IPROPI)Configurable control interfacePH/ENPWM (IN1/IN2)Independent half-bridge controlSupports 1.8-V, 3.3-V, 5-V logic inputsSPI or hardware interface optionsSmall package and footprint24 HTSSOP PowerPAD™ IC packageProtection featuresVM undervoltage lockout (UVLO)Charge pump undervoltage (CPUV)Overcurrent protection (OCP)Output short to battery and short to ground protectionOpen load detectionThermal shutdown (TSD)Fault condition output (nFAULT / SPI)Spread spectrum clocking for low electromagnetic interference (EMI)Functional Safety-CapableDocumentation available to aid functional safety system design

Description

AI
The DRV8873-Q1 device is an integrated driver IC for driving a brushed DC motor in automotive applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V. A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads. Integrated current sensing provides an output current proportional to the motor load current of both hide-side FETs without the need for high-power sense resistors. This can be used to detect motor stall or change in load conditions. A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers. The DRV8873-Q1 device is an integrated driver IC for driving a brushed DC motor in automotive applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V. A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads. Integrated current sensing provides an output current proportional to the motor load current of both hide-side FETs without the need for high-power sense resistors. This can be used to detect motor stall or change in load conditions. A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers.