DRV8881, 2.5 A Stepper Motor Drivers

Product Highlights > DRV8881, 2.5 A Stepper Motor Drivers

            DRV8881, 2.5 A Stepper Motor Drivers
                    Texas Instruments offers its DRV8881, 2.5 A stepper motor driver with AutoTune™
    

Image of Texas Instruments' DRV8881, 2.5 A Stepper Motor Drivers Texas Instruments' DRV8881 are bipolar stepper or brushed-DC motor drivers for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 are capable of driving up to 2.5 A peak current or 1.4 A_RMS current per H-bridge (with proper PCB ground plane for thermal dissipation and at 24 V and T_A = 25°C).

AutoTune™ automatically tunes motors for optimal current-regulation performance and compensates for motor variation and aging effects. AutoTune is available on the DRV8881E. Additionally, slow, fast, and mixed decay modes are available.

The PH/EN (DRV8881E) or PWM (DRV8881P) pins provide a simple control interface. An internal sense amplifier allows for adjustable current control. A low-power sleep mode is provided for very-low quiescent current standby using a dedicated nSLEEP pin.

Internal protection functions are provided for under-voltage, charge pump faults, over-current, short circuits, and over-temperature. Fault conditions are indicated by an nFAULT pin.

Features
Dual H-bridge motor driver Bipolar stepper motor driver Single or dual brushed-DC motor driver 6.5 V to 45 V operating supply voltage range Two control interface options PHASE/ENABLE (DRV8881E) PWM (DRV8881P) Multiple decay modes to support any motor AutoTune (DRV8881E only) Mixed decay Slow decay Fast decay Adaptive blanking time for smooth motion Parallel mode operation (DRV8881P only)		Configurable off-time PWM chopping 10 µs, 20 µs, 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) Protection features VM under-voltage lockout (UVLO) Charge pump under-voltage (CPUV) Over-current protection (OCP) Automatic OCP retry Thermal shutdown (TSD) Fault condition indication pin (nFAULT)