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DRV8849RHHR中文资料德州仪器数据手册PDF规格书

DRV8849RHHR
厂商型号

DRV8849RHHR

功能描述

DRV8849: 38 V, 1.5 A Dual Stepper Driver with Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and Smart Tune

丝印标识

DRV8849

封装外壳

VQFN

文件大小

1.41742 Mbytes

页面数量

35

生产厂商 Texas Instruments
企业简称

TI德州仪器

中文名称

美国德州仪器公司官网

原厂标识
数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-6-25 22:58:00

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DRV8849RHHR规格书详情

1 Features

• Dual stepper motor driver

– STEP/DIR interface

– Up to 1/256 microstepping indexer

• 4.5 to 38-V Operating supply voltage range

• 900 mΩ HS + LS RDS(ON) at 24 V, 25°C

• 1.5 A full-scale, 1.1 A rms current per H-bridge

• Integrated current sense functionality

– No sense resistors required

– ±5 full-scale current accuracy

• Smart tune decay technology

• Configurable off-time PWM chopping in Smart tune

– 8-μs, 16-μs, or 32-μs

• Supports 1.8-V, 3.3-V, 5.0-V logic inputs

• Low-current sleep mode (1.3 μA)

• Protection features for each Stepper

– VM undervoltage lockout (UVLO)

– Charge pump undervoltage (CPUV)

– Overcurrent protection (OCP)

– Thermal shutdown (OTSD)

– Fault condition output (nFAULT)

2 Applications

• IP Network Camera

• Printers and scanners

• ATM and money handling machines

• Sewing machines

• Medical Imaging, Diagnostics and Equipment

• 3D Printer

3 Description

The DRV8849 is a dual stepper motor driver for

industrial and consumer applications. The device is

fully integrated with four N-channel power MOSFET

H-bridge drivers, one microstepping indexer for

each stepper, and integrated current sensing. The

DRV8849 is capable of driving up to 1.5-A full-scale

output current (dependent on PCB design).

The DRV8849 uses an internal current sense

architecture to eliminate the need for four external

power sense resistors, saving PCB area and system

cost. The device uses an internal PWM current

regulation scheme with smart tune decay mode.

Smart tune automatically adjusts for desired current

regulation, compensates for motor variation and aging

effects and reduces audible noise and vibration from

the motor.

Simple STEP/DIR interfaces allow an external

controller to manage the direction and step rate of

the stepper motors. The device can be configured

in full-step to 1/256 microstepping. A low-power

sleep mode is provided using a dedicated nSLEEP

pin. Protection features are provided for supply

undervoltage, charge pump faults, overcurrent, short

circuits, and overtemperature. Fault conditions are

indicated by one nFAULT pin for each stepper.

供应商 型号 品牌 批号 封装 库存 备注 价格
TI
2016+
VQFN24
3000
主营TI,绝对原装,假一赔十,可开17%增值税发票!
询价
TI/德州仪器
24+
QFN
12000
原装
询价
TI
20+
VQFN24
53650
TI原装主营-可开原型号增税票
询价
TI(德州仪器)
2024+
N/A
500000
诚信服务,绝对原装原盘
询价
TI(德州仪器)
24+/25+
10000
原装正品现货库存价优
询价
TI
三年内
1983
只做原装正品
询价
Texas
25+
25000
原厂原包 深圳现货 主打品牌 假一赔百 可开票!
询价
TI
20+
QFN-24
11520
特价全新原装公司现货
询价
TI/德州仪器
21+
NA
5000
百域芯优势 实单必成 可开13点增值税
询价
TI
24+
VQFN24
5645
公司原厂原装现货假一罚十!特价出售!强势库存!
询价