| Number of full bridges | 2 |
| Vs (Min) (V) | 8 |
| Vs ABS (Max) (V) | 40 |
| Full-scale current (A) | 1.9 |
| Peak output current (A) | 2.5 |
| RDS(ON) (HS + LS) (mOhms) | 1000 |
| Sleep current (uA) | 12 |
| Control mode | STEP/DIR |
| Control interface | Hardware (GPIO) |
| Micro-stepping levels | 8 |
| Features | Current Regulation |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
- Pulse Width Modulation (PWM) Microstepping Motor Driver
- Up to 1/8-Step Microstepping Indexer
- Step and Direction Control
- Programmable Mixed Decay, Blanking, and Off-Time
- Up to 1.9-A Current Per Winding
- Low 1.0-? (HS+LS) MOSFET RDS(on) (25°C)
- 8-V to 38-V Operating Supply Voltage Range
- Pin-to-Pin Compatible With the DRV8818
- Thermally Enhanced Surface Mount Package
- Protection Features:
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
The DRV8811 device provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.
The output driver block consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.
A simple STEP-and-DIR interface allows easy interfacing to controller circuits. Step mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off-time are programmable.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature.
The DRV8811 device is packaged in a PowerPAD? 28-pin HTSSOP package with thermal pad.
