DRV8880_15 Datasheet, PDF (1/48 Pages) Texas Instruments – DRV8880 2-A Stepper Motor Driver With AutoTune™

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DRV8880
SLVSD18A – JUNE 2015 – REVISED JULY 2015
DRV8880 2-A Stepper Motor Driver With AutoTune™
1 Features
•1 Microstepping Stepper Motor Driver
– STEP/DIR Interface
– Up to 1/16 Microstepping Indexer
– Non-Circular and Standard ½ Step Modes
• 6.5- to 45-V Operating Supply Voltage Range
• Multiple Decay Modes to Support Any Motor
– AutoTune™
– Mixed Decay
– Slow Decay
– Fast Decay
• Adaptive Blanking Time for Smooth Stepping
• Configurable Off-Time PWM Chopping
– 10-, 20-, or 30-μs Off-Time
• 3.3-V, 10-mA LDO Regulator
• Low-Current Sleep Mode (28 µA)
• Small Package and Footprint
– 28 HTSSOP (PowerPAD)
– 28 WQFN (PowerPAD)
SPACE
• Protection Features
– VM Undervoltage Lockout (UVLO2)
– Logic Undervoltage (UVLO1)
– Charge Pump Undervoltage (CPUV)
– Overcurrent Protection (OCP)
– Latched OCP Mode
– Retry OCP Mode
– Thermal Shutdown (TSD)
– Fault Condition Indication Pin (nFAULT)
Simplified System Diagram
6.5 to 45 V
2 Applications
• Automatic Teller and Money Handling Machines
• Video Security Cameras
• Multi-Function Printers and Document Scanners
• 3D Printers
• Office Automation Machines
• Factory Automation and Robotics
3 Description
The DRV8880 is a bipolar stepper motor driver for
industrial applications. The device has two N-channel
power MOSFET H-bridge drivers and a microstepping
indexer. The DRV8880 is capable of driving 2.0 A full-
scale current or 1.4-A rms current (with proper PCB
ground plane for thermal dissipation and at 24 V and
T_A = 25°C).
AutoTune™ automatically tunes stepper motors for
optimal current regulation performance and
compensates for motor variation and aging effects.
Additionally slow, fast, and mixed decay modes are
available.
The STEP/DIR pins provide a simple control
interface. The device can be configured in full-step up
to 1/16- step modes. A low-power sleep mode is
provided for very low quiescent current standby using
a dedicated nSLEEP pin.
Internal protection functions are provided for
undervoltage, charge pump faults, overcurrent, short-
circuits, and overtemperature. Fault conditions are
indicated by a nFAULT pin.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8880
HTSSOP (28)
WQFN (28)
9.70 mm × 4.40 mm
5.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Microstepping Current Waveform
Full-scale current
STEP/DIR
Step size
DRV8880
2.0 A
Stepper
Motor Driver
Decay mode
µš}@µv¡
1/16 µstep
2.0 A
M
+-
1
RMS current
AOUT
BOUT
Step Input
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.