DRV8834RGER集成电路（IC）的电机驱动器控制器规格书PDF中文资料

DRV8834RGER属于集成电路（IC）的电机驱动器控制器。由德州仪器制造生产的DRV8834RGER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。

1 Features

1• Dual-H-Bridge Current-Control Motor Driver

– Capable of Driving Two DC Motors or One HStepper

Motor

• Two Control Modes:

– Built-In Indexer Logic With Simple

STEP/DIRECTION Control and Up to

1/32-Step Microstepping

– PHASE/ENABLE Control, With the Ability to

Drive External References for > 1/32-Step

Microstepping

• Output Current 1.5-A Continuous, 2.2-A Peak per

H-Bridge (at VM = 5 V, 25°C)

• Low R DS(ON): 305-mΩ HS + LS

(at VM = 5 V, 25°C)

• Wide Power Supply Voltage Range:

2.5 V to 10.8 V

• Dynamic tBLANK and Mixed Decay Modes for

Smooth Microstepping

• PWM Winding Current Regulation and Limiting

• Thermally Enhanced Surface-Mount Package

2 Applications

• Battery-Powered Toys

• POS Printers

• Video Security Cameras

• Office Automation Machines

• Gaming Machines

• Robotics

3 Description

The DRV8834 provides a flexible motor driver

solution for toys, printers, cameras, and other mechatronic applications. The device has two HStepper

bridge drivers, and is intended to drive a bipolar

stepper motor or two DC motors.

The output driver block of each H-bridge consists of

N-channel power MOSFETs configured as an H-

bridge to drive the motor windings. Each H-bridge

includes circuitry to regulate or limit the winding

current.

With proper PCB design, each H-bridge of the

DRV8834 can driving up to 1.5-A RMS (or DC)

continuously, at 25°C with a VM supply of 5 V. The

device can support peak currents of up to 2.2 A per

bridge. Current capability is reduced slightly at lower

VM voltages.

Internal shutdown functions with a fault output pin are provided for overcurrent protection, short-circuit

protection, undervoltage lockout and

overtemperature. A low-power sleep mode is also

provided.

The DRV8834 is packaged in a 24-pin HTSSOP or

VQFN package with PowerPAD™ (Eco-friendly:

RoHS & no Sb/Br).