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.
● 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
● 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
● 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)
