The DRV8846 provides a highly-integrated stepper motor driver for cameras, printers, projectors, and other automated equipment applications. The device has two H-bridges and a microstepping indexer and is intended to drive a bipolar stepper motor. The output block of each H-bridge driver consists of N-channel and P-channel power MOSFETs configured as full H-bridges to drive the motor windings. The DRV8846 is capable of driving up to 1.4-A full-scale output current (with proper heatsinking and TA = 25°C).
A simple STEP/DIR interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that smart tune, slow decay, fast decay, and mixed decay can be used. The PWM current chopping off-time can also be selected. 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 protection functions are provided for UVLO, overcurrent protection, short circuit protection, and overtemperature. Fault conditions are indicated via a nFAULT pin.
| Documentación principal | Tipo | Título | Opciones de formato | Descargar la versión más reciente en inglés | Fecha | |
|---|---|---|---|---|---|---|
| * | Hoja de datos | DRV8846 Dual H-Bridge Stepper Motor Driver datasheet (Rev. A) | PDF | HTML | 27/03/2017 | ||
| Nota sobre la aplicación | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 14/10/2021 | |||
| Nota sobre la aplicación | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 19/01/2021 | |||
| Informe | How smart tune regulates current in stepper motors (Rev. A) | 19/03/2019 | ||||
| Application brief | Smart Tuning for Efficient Stepper Driving | 20/11/2018 | ||||
| Application brief | Small Motors in Large Appliances | 20/07/2018 | ||||
| Artículo técnico | Spin your stepper automatically | PDF | HTML | 3/03/2016 | |||
| Más documentación | TM4C123x Stepper Motor Control Product Summary | 6/07/2015 |
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The DRV8846 is a highly integrated stepper motor controller and driver for cameras, printers, projectors, and other automated equipment applications.This device has been optimized to drive a single bipolar stepper with up to 1/32 microstepping with on-chip indexers.
The DRV8846EVM is a platform (...)
This design is a complete system for controlling 3-axis, single extruder-based 3D printers. The system is managed by the MSP430F5529 LaunchPad and utilizes the DRV8846 for precision stepper motor control. The CSD18534Q5A is used as a low-side switch for the hot bed heater, extruder heater, and (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| VQFN (RGE) | 24 | Ultra Librarian |
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