| Number of full bridges | 2 |
| Vs (Min) (V) | 8.2 |
| Vs ABS (Max) (V) | 47 |
| Full-scale current (A) | 2.5 |
| Peak output current (A) | 3 |
| RDS(ON) (HS + LS) (mOhms) | 400 |
| Sleep current (uA) | 10 |
| Control mode | PWM |
| Control interface | Hardware (GPIO) |
| Micro-stepping levels | 4 |
| Features | Current Regulation |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
- Dual H-Bridge DC Motor Driver
- Single and Dual Brushed DC
- Stepper
- PWM Control Interface
- Optional Fixed Frequency Current Regulation
- Two Bit Current Control Allows Up to Four
Current Levels
- Two Bit Current Control Allows Up to Four
- Low MOSFET On-Resistance
- 2.5-A Maximum Drive Current at 24 V and
TA = 25°C - Combined 400 mΩ RDS(ON) of High-Side
and Low-Side at 24 V and TA = 25°C
- 2.5-A Maximum Drive Current at 24 V and
- 8.2-V to 45-V Operating Supply Voltage Range
- Low Current Sleep Mode
- Built-In 3.3-V Reference Output
- Thermally Enhanced Surface Mount Package
- Protection Features
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Undervoltage Lockout (UVLO)
- Fault Condition Indication Pin (nFAULT)
The DRV8841 provides an integrated dual H-bridge motor driver solution for printers, scanners, and other automated equipment applications. The device can be used to drive one or two brushed DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.
The output driver block consists of N-channel power MOSFETs configured as H-bridges. The DRV8841 an supply up to 2.5-A peak or 1.75-A RMS output current (with proper heat sinking at 24 V and TA = 25°C) per H-bridge.
A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal protection features are provided for overtemperature, overcurrent, and undervoltage. Fault conditions are indicated by a nFAULT pin.