DRV8843是TI公司的一款集成FET的步进栅极驱动器产品，DRV8843是2.5A 双路刷式或单路双极步进电机驱动器（PWM 控制器），本页介绍了DRV8843的产品说明、应用、特性等，并给出了与DRV8843相关的TI元器件型号供参考。
DRV8843 - 2.5A 双路刷式或单路双极步进电机驱动器（PWM 控制器） - 集成FET的步进栅极驱动器 - 步进驱动器 - TI公司（Texas Instruments，德州仪器）
- 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
- 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)
- Printers
- Scanners
- Office Automation Machines
- Gaming Machines
- Factory Automation
- Robotics
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.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| DRV8843 | HTSSOP (28) | 9.70 mm × 4.40 mm |
