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DRV8825

Texas Instruments
Part Number DRV8825
Manufacturer Texas Instruments
Description Stepper Motor Controller
Published Dec 1, 2019
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV8825 SLVSA73F – APRIL 2010 ...
Datasheet PDF File DRV8825 PDF File

DRV8825
DRV8825

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV8825 SLVSA73F – APRIL 2010 – REVISED JULY 2014 DRV8825 Stepper Motor Controller IC 1 Features •1 PWM Microstepping Stepper Motor Driver – Built-In Microstepping Indexer – Up to 1/32 Microstepping • Multiple Decay Modes – Mixed Decay – Slow Decay – Fast Decay • 8.
2-V to 45-V Operating Supply Voltage Range • 2.
5-A Maximum Drive Current at 24 V and TA = 25°C • Simple STEP/DIR Interface • Low Current Sleep Mode • Built-In 3.
3-V Reference Output • Small Package and Footprint • Protection Features – Overcurrent Protection (OCP) – Thermal Shutdown (TSD) – VM Undervoltage Lockout (UVLO) – Fault Condition Indication Pin (nFAULT) 2 Applications • Automatic Teller Machines • Money Handling Machines • Video Security Cameras • Printers • Scanners • Office Automation Machines • Gaming Machines • Factory Automation • Robotics 3 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.
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