DRV8880PWPR Fast Decay Battery Charger Diode Circuit Microstepping Stepper Motor Driver

DRV8880PWPR Power Path Management IC Motor / Motion / Ignition Controllers

1 Features

• Microstepping Stepper Motor Driver

      – STEP/DIR Interface

      – Up to 1/16 Microstepping Indexer

      – Non-Circular and Standard 1⁄2 Step Modes

• 6.5- to 45-V Operating Supply Voltage Range

• Multiple Decay Modes to Support Any Motor

      – AutoTuneTM

      – 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 (PowerPADTM)

      – 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 full- scale current or 1.4-A rms current (with proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).

AutoTuneTM 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