DRV8843 - 2.5A 双路刷式或单路双极步进电机驱动器（PWM 控制器）

DRV8843是TI德州仪器公司的一款集成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），本站介绍了DRV8843的封装应用图解、特点和优点、功能等，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 - 德州仪器

产品特性

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)

产品应用

Printers
Scanners
Office Automation Machines
Gaming Machines
Factory Automation
Robotics

产品说明

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.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
DRV8843	HTSSOP (28)	9.70 mm × 4.40 mm

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