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.
| 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) (mΩ) | 1000 |
| Sleep current (µA) | 12 |
| Control mode | STEP/DIR |
| Control interface | Hardware (GPIO) |
| Microstepping levels | 8 |
| Features | Current Regulation |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| HTSSOP (PWP) | 28 | 62.08 mm² 9.7 x 6.4 |
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