DRV8880 Texas instruments

DRV8880

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DRV8880

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Описание

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). 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, short-circuits, and overtemperature. Fault conditions are indicated by a nFAULT pin.

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)

Number of full bridges	2
Vs (min) (V)	6.5
Vs ABS (max) (V)	50
Full-scale current (A)	2
Peak output current (A)	2.5
RDS(ON) (HS + LS) (mΩ)	630
Sleep current (µA)	28
Control mode	STEP/DIR
Control interface	Hardware (GPIO)
Microstepping levels	16
Features	Current Regulation, Smart Tune
Rating	Catalog
Operating temperature range (°C)	-40 to 125