DRV8825 Series

45-V, 2.5-A bipolar stepper motor driver with current regulation and 1/32 microstepping

Catalog

45-V, 2.5-A bipolar stepper motor driver with current regulation and 1/32 microstepping

Part	Function	Motor Type - Stepper	Supplier Device Package	Interface	Applications	Voltage - Load [Max]	Voltage - Load [Min]	Package / Case [custom]	Package / Case	Package / Case [custom]	Output Configuration	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Technology	Voltage - Supply [Max]	Voltage - Supply [Min]
Texas Instruments DRV8825PWPR	Driver - Fully Integrated Control and Power Stage	Bipolar	28-HTSSOP	Logic	General Purpose	45 V	8.2 V	4.4 mm	28-PowerTSSOP	0.173 "	Half Bridge (4)	2.5 A	150 °C	-40 °C	Surface Mount	Power MOSFET	45 V	8.2 V

Catalog

45-V, 2.5-A bipolar stepper motor driver with current regulation and 1/32 microstepping

Key Features

• PWM Microstepping Stepper Motor DriverBuilt-In Microstepping IndexerUp to 1/32 MicrosteppingMultiple Decay ModesMixed DecaySlow DecayFast Decay8.2-V to 45-V Operating Supply Voltage Range2.5-A Maximum Drive Current at 24 V andTA= 25°CSimple STEP/DIR InterfaceLow Current Sleep ModeBuilt-In 3.3-V Reference OutputSmall Package and FootprintProtection FeaturesOvercurrent Protection (OCP)Thermal Shutdown (TSD)VM Undervoltage Lockout (UVLO)Fault Condition Indication Pin (nFAULT)APPLICATIONSAutomatic Teller MachinesMoney Handling MachinesVideo Security CamerasPrintersScannersOffice Automation MachinesGaming MachinesFactory AutomationRoboticsPWM Microstepping Stepper Motor DriverBuilt-In Microstepping IndexerUp to 1/32 MicrosteppingMultiple Decay ModesMixed DecaySlow DecayFast Decay8.2-V to 45-V Operating Supply Voltage Range2.5-A Maximum Drive Current at 24 V andTA= 25°CSimple STEP/DIR InterfaceLow Current Sleep ModeBuilt-In 3.3-V Reference OutputSmall Package and FootprintProtection FeaturesOvercurrent Protection (OCP)Thermal Shutdown (TSD)VM Undervoltage Lockout (UVLO)Fault Condition Indication Pin (nFAULT)APPLICATIONSAutomatic Teller MachinesMoney Handling MachinesVideo Security CamerasPrintersScannersOffice Automation MachinesGaming MachinesFactory AutomationRobotics

Description

The DRV8825 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers and a microstepping indexer, and is intended to drive a bipolar stepper motor. The output driver block consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8825 is capable of driving up to 2.5 A of current from each output (with proper heat sinking, at 24 V and 25°C). A simple STEP/DIR interface allows easy interfacing to controller circuits. Mode pins allow for configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that slow decay, fast decay, or mixed decay can be used. A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal shutdown functions are provided for overcurrent, short circuit, under voltage lockout and over temperature. Fault conditions are indicated via the nFAULT pin. The DRV8825 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers and a microstepping indexer, and is intended to drive a bipolar stepper motor. The output driver block consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8825 is capable of driving up to 2.5 A of current from each output (with proper heat sinking, at 24 V and 25°C). A simple STEP/DIR interface allows easy interfacing to controller circuits. Mode pins allow for configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that slow decay, fast decay, or mixed decay can be used. A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal shutdown functions are provided for overcurrent, short circuit, under voltage lockout and over temperature. Fault conditions are indicated via the nFAULT pin.