Texas Instruments DRV8846
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 Nchannel and P-channel power MOSFETs configured as full H-bridges to drive the motor windings.| Part No. | DRV8846 |
|---|---|
| Datasheet | DRV8846 Download |
| Manufacturer |  Texas Instruments |
| Description | Dual H-Bridge Stepper Motor Driver |
| Buy | Stock & Price |
FEATURES
●1 PWM Microstepping Motor Driver – Built-In Microstepping Indexer – Up to 1/32 Microstepping – Step/Direction Control● Multiple Decay Modes – Smart tune Technology – Mixed Decay – Slow Decay – Fast Decay
● Configurable Off-Time PWM Chopping – 10-, 20-, or 30-μs Off-Time
● Adaptive Blanking Time for Smooth Stepping
● 4- to 18-V Operating Supply Voltage Range
● 1.4-A (Full Scale (Max Drive) Current per H- Bridge (at 25°C)
● Low-Current Sleep Mode
● 3-Bit Torque DAC to Scale Motor Current
● Thermally Enhanced Surface Mount Package
● Protection
FEATURES
– VM Undervoltage Lockout (UVLO) – Overcurrent Protection (OCP) – Thermal Shutdown (TSD) – Fault Condition Indication Pin (nFAULT) 2APPLICATIONS
● Printers● Scanners
● Video Security Cameras
● Projectors 3
DESCRIPTION
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.
