DRV8832中文资料7-V, 1-A H-bridge motor driver with voltage regulation数据手册TI规格书

描述 Description

The DRV8832 provides an integrated motor driver solution for battery-powered toys, printers, and other low-voltage or battery-powered motion control applications. The device has one H-bridge driver, and can drive one DC motor or one winding of a stepper motor, as well as other loads like solenoids. The output driver block consists of N-channel and P-channel power MOSFETs configured as an H-bridge to drive the motor winding.

Provided with sufficient PCB heatsinking, the DRV8832 can supply up to 1 A of DC/RMS or peak output current. The device operates on power supply voltages from 2.75 V to 6.8 V.

To maintain constant motor speed over varying battery voltages while maintaining long battery life, a PWM voltage regulation method is provided. An input pin allows programming of the regulated voltage. A built-in voltage reference output is also provided.

Internal protection functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.

The DRV8832 also provides a current limit function to regulate the motor current during conditions like motor start-up or stall, as well as a fault output pin to signal a host processor of a fault condition.

The DRV8832 is available in a tiny 3-mm × 3-mm 10-pin VSON package and MSOP PowerPAD package (Eco-friendly: RoHS & no Sb/Br).

特性 Features

• H-Bridge Voltage-Controlled Motor Driver
• Drives DC Motor, One Winding of a Stepper Motor, or Other Actuators/Loads
• Efficient PWM Voltage Control for Constant Motor Speed With Varying Supply Voltages
• Low MOSFET On-Resistance: HS + LS 450 mΩ

• 1-A Maximum DC/RMS or Peak Drive Current
• 2.75-V to 6.8-V Operating Supply Voltage Range
• 300-nA (Typical) Sleep Mode Current
• Reference Voltage Output
• Current Limit Circuit
• Fault Output
• Thermally-Enhanced Surface Mount Packages

简介

DRV8832属于集成电路（IC）的电机驱动器控制器。由TI制造生产的DRV8832电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。