DRV8885 37-V, 1.5-A bipolar stepper motor driver with integrated current sensing & 1/16 microstepping | TI.com

DRV8885
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37-V, 1.5-A bipolar stepper motor driver with integrated current sensing & 1/16 microstepping

 

Recommended alternative parts

  • DRV8886  -  The DRV8886 has the same pinout and is higher current
  • DRV8884  -  The DRV8884 has the same pinout and is lower current

Description

The DRV8885 is a stepper motor driver for industrial equipment applications. The device has two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sense. The DRV8885 is capable of driving up to 1.5 A full scale or 1.0 A rms output current (depending on proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).

The DRV8885 integrated current sense functionality eliminates the need for two external sense resistors.

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 an nFAULT pin.

Features

  • PWM microstepping stepper motor driver
    • Up to 1/16 microstepping
    • Non-circular and standard ½ step modes
  • Integrated current sense functionality
    • No sense resistors required
    • ±6.25% Full-scale current accuracy
  • Slow and mixed decay options
  • 8.0- to 37-V Operating supply voltage range
  • Low RDS(ON): 0.86 Ω HS + LS at 24 V, 25°C
  • High current capacity
    • 1.5-A Full scale per bridge
    • 1.0-A rms per bridge
  • Fixed off-time PWM chopping
  • Simple STEP/DIR interface
  • Low-current sleep mode (20 µA)
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ package
    • 28 WQFN package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition indication pin (nFAULT)

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Parametrics

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Part number Order Number of full bridges Vs (Min) (V) Vs (Max) (V) Full-scale current (A) Peak output current (A) RDS(ON) (HS + LS) (mOhms) Control mode Control interface Micro-stepping levels Features Package size: mm2:W x L (PKG) Approx. price (US$)
DRV8885 Order now 2     8     37     1.5     2.3     860     STEP/DIR     Hardware (GPIO)     16     Current Regulation
Integrated Current Sensing    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
1.27 | 1ku    
DRV8436 Order now 2     4.5     48     1.5     2.5     900     STEP/DIR     Hardware (GPIO)     256     Integrated Current Sensing
Smart Tune    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     1.19 | 1ku    
DRV8436E Order now 2     4.5     45     4.5     2.5     900     PH/EN
PWM    
Hardware (GPIO)       Integrated Current Sensing
Smart Tune    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)     1.19 | 1ku    
DRV8824 Order now 2     8.2     45     1.6     1.8     1280     STEP/DIR     Hardware (GPIO)     32     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28VQFN: 25 mm2: 5 x 5 (VQFN | 28)    
1.38 | 1ku    
DRV8825 Order now 2     8.2     45     2.5     3     400     STEP/DIR     Hardware (GPIO)     32     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     1.60 | 1ku    
DRV8880 Order now 2     6.5     45     2     2.5     630     STEP/DIR     Hardware (GPIO)     16     Current Regulation
Smart Tune    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
1.38 | 1ku    
DRV8881 Order now 2     6.5     45     2     2.5     630     PH/EN
PWM    
Hardware (GPIO)       Current Regulation
Smart Tune    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
1.35 | 1ku    
DRV8884 Order now 2     8     37     1     1.7     1400     STEP/DIR     Hardware (GPIO)     16       24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)