DRV8880RHRR.B中文资料德州仪器数据手册PDF规格书

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

– Smart tune

– 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

• 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)

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 fullscale

current or 1.4-A rms current (with proper PCB

ground plane for thermal dissipation and at 24 V and

TA = 25°C).

Smart tune 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, shortcircuits,

and overtemperature. Fault conditions are

indicated by a nFAULT pin.