DRV8845中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
| 廠商型號(hào) |
DRV8845 |
| 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 |
| 文件大小 |
1.41742 Mbytes |
| 頁(yè)面數(shù)量 |
35 頁(yè) |
| 生產(chǎn)廠商 | Texas Instruments |
| 企業(yè)簡(jiǎn)稱(chēng) |
TI【德州儀器】 |
| 中文名稱(chēng) | 美國(guó)德州儀器公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-1-12 12:12:00 |
DRV8845規(guī)格書(shū)詳情
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.
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
TI |
18+ |
VQFN24 |
3000 |
向鴻專(zhuān)營(yíng)原裝正品TI,深圳現(xiàn)貨 |
詢價(jià) | ||
TI |
2016+ |
VQFN24 |
3000 |
主營(yíng)TI,絕對(duì)原裝,假一賠十,可開(kāi)17%增值稅發(fā)票! |
詢價(jià) | ||
TI |
21+ |
VQFN24 |
6000 |
原裝正品 |
詢價(jià) | ||
TI/德州儀器 |
22+ |
VQFN-24 |
9600 |
原裝現(xiàn)貨,優(yōu)勢(shì)供應(yīng),支持實(shí)單! |
詢價(jià) | ||
TI |
2020+ |
VQFN24 |
80000 |
只做自己庫(kù)存,全新原裝進(jìn)口正品假一賠百,可開(kāi)13%增 |
詢價(jià) | ||
TI |
三年內(nèi) |
1983 |
只做原裝正品 |
詢價(jià) | |||
24+ |
N/A |
82000 |
一級(jí)代理-主營(yíng)優(yōu)勢(shì)-實(shí)惠價(jià)格-不悔選擇 |
詢價(jià) | |||
TI/德州儀器 |
2122+ |
NA |
15688 |
全新原裝正品現(xiàn)貨,優(yōu)勢(shì)渠道可含稅,假一賠十 |
詢價(jià) | ||
TI/德州儀器 |
23+ |
VQFN24 |
18204 |
原裝正品代理渠道價(jià)格優(yōu)勢(shì) |
詢價(jià) | ||
TI/德州儀器 |
2021+ |
C0603 |
100500 |
一級(jí)代理專(zhuān)營(yíng)品牌!原裝正品,優(yōu)勢(shì)現(xiàn)貨,長(zhǎng)期排單到貨 |
詢價(jià) |
