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DRV8428E

DRV8428E Series

35-V, 1-A bipolar stepper or dual brushed motor driver with integrated current sensing

Manufacturer: Texas Instruments

Catalog

35-V, 1-A bipolar stepper or dual brushed motor driver with integrated current sensing

Key Features

Dual H-bridge motor driverOne bipolar stepper motorDual bidirectional brushed-DC motorsFour unidirectional brushed-DC motorsIntegrated current sense functionalityNo sense resistors required±6% Full-scale current accuracy4.2-V to 33-V Operating supply voltage rangeMultiple control interface optionsPHASE/ENABLE (PH/EN)PWM (IN/IN)Smart tune, and mixed decay options1500 mΩ HS + LS RDS(ON)at 24 V, 25°CCurrent Capacity: 1.7-A peak, 0.7-A rmsConfigurable Off-Time PWM Chopping7, 16 or 32 µsSupports 1.8-V, 3.3-V, 5.0-V logic inputsLow-current sleep mode (2 µA)Spread spectrum clocking for low EMIInrush current limiting in brushed-DC applicationsSmall package and footprintProtection featuresVM undervoltage lockout (UVLO)Overcurrent protection (OCP)Thermal shutdown (OTSD)Dual H-bridge motor driverOne bipolar stepper motorDual bidirectional brushed-DC motorsFour unidirectional brushed-DC motorsIntegrated current sense functionalityNo sense resistors required±6% Full-scale current accuracy4.2-V to 33-V Operating supply voltage rangeMultiple control interface optionsPHASE/ENABLE (PH/EN)PWM (IN/IN)Smart tune, and mixed decay options1500 mΩ HS + LS RDS(ON)at 24 V, 25°CCurrent Capacity: 1.7-A peak, 0.7-A rmsConfigurable Off-Time PWM Chopping7, 16 or 32 µsSupports 1.8-V, 3.3-V, 5.0-V logic inputsLow-current sleep mode (2 µA)Spread spectrum clocking for low EMIInrush current limiting in brushed-DC applicationsSmall package and footprintProtection featuresVM undervoltage lockout (UVLO)Overcurrent protection (OCP)Thermal shutdown (OTSD)

Description

AI
The DRV8428E/P devices are dual H-bridge motor drivers for a wide variety of industrial applications. The devices can be used for driving two DC motors, or a bipolar stepper motor. The DRV8428E/P are capable of driving up to 1-A full scale or 0.7-A rms output current (dependent on PCB design). The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges, current sensing and regulation, and protection circuitry. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost. A low-power sleep mode is provided to achieve ultra- low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), output overcurrent (OCP), and device overtemperature (TSD). The DRV8428E/P devices are dual H-bridge motor drivers for a wide variety of industrial applications. The devices can be used for driving two DC motors, or a bipolar stepper motor. The DRV8428E/P are capable of driving up to 1-A full scale or 0.7-A rms output current (dependent on PCB design). The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges, current sensing and regulation, and protection circuitry. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost. A low-power sleep mode is provided to achieve ultra- low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), output overcurrent (OCP), and device overtemperature (TSD).