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DRV8843
45-V, 2.5-A bipolar stepper or dual H-bridge motor driver with current regulation and PWM control
Data sheet
DRV8843
- Dual H-Bridge Motor Driver
- Single/Dual Brushed DC
- Stepper
- IN/IN Control Interface
- Optional Fixed Frequency Current Regulation
- Two Bit Current control Allows Up to
Four Current Levels
- Two Bit Current control Allows Up to
- 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
- 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 DRV8843 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 DRV8843 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.
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Technical documentation
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View all 10 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | DRV8843 Dual H-Bridge Driver datasheet (Rev. D) | PDF | HTML | 30 Nov 2015 |
| Application note | Understanding Motor Driver Current Ratings (Rev. A) | PDF | HTML | 05 Jul 2024 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 14 Oct 2021 | |
| Application note | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 22 Jul 2021 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 19 Jan 2021 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 06 Jul 2018 | ||
| User guide | DRV88xx EVM GUI (Rev. C) | 27 Apr 2017 | ||
| More literature | TM4C123x Stepper Motor Control Product Summary | 06 Jul 2015 | ||
| Application note | Optimizing High-Level Micro Stepping of the DRV88xx Driver | 19 Jul 2014 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 12 May 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
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