DRV8841 2.5A Dual Brushed DC or Single Bipolar Stepper Motor Driver (PWM Ctrl) | TI.com

DRV8841
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2.5A Dual Brushed DC or Single Bipolar Stepper Motor Driver (PWM Ctrl)

2.5A Dual Brushed DC or Single Bipolar Stepper Motor Driver (PWM Ctrl) - DRV8841
Datasheet
DRV8841 Dual H-Bridge Driver IC datasheet (Rev. F)
 

Recommended alternative parts

  • DRV8886AT  -  The DRV8886AT has integrated microstepping up to 1/16, Integrated Current Sensing, and adaptive decay mode for Stepper Motor applications

Description

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.

Features

  • 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)

Parametrics

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Part number Order Number of full bridges Vs (Min) (V) Vs (Max) (V) Peak output current (A) Control mode Control interface Micro-stepping levels Features Package size: mm2:W x L (PKG) RDS(ON) (HS + LS) (mOhms) Approx. price (US$)
DRV8841 Order now 2     8.2     45     3     PWM     Hardware (GPIO)     4     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     400     1.55 | 1ku    
DRV8843 Order now 2     8.2     45     3     PWM     Hardware (GPIO)     4     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     400     1.55 | 1ku