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DRV8308RHAR

更新时间： 2024-11-26 01:13:15
品牌 Logo 应用领域
德州仪器 - TI 电动机控制
页数 文件大小 规格书
60页 1702K
描述
DRV8308 Brushless DC Motor Controller

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DRV8308RHAR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HVQCCN,
Reach Compliance Code：compliantHTS代码：8542.39.00.01
Factory Lead Time：8 weeks风险等级：1.64
模拟集成电路 - 其他类型：BRUSHLESS DC MOTOR CONTROLLERJESD-30 代码：S-PQCC-N40
JESD-609代码：e4长度：6 mm
湿度敏感等级：3功能数量：1
端子数量：40最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
座面最大高度：0.9 mm最大供电电流 (Isup)：18 mA
最大供电电压 (Vsup)：32 V最小供电电压 (Vsup)：8.5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：6 mm
Base Number Matches：1

DRV8308RHAR 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
DRV8308  
SLVSCF7A –FEBRUARY 2014–REVISED OCTOBER 2014  
DRV8308 Brushless DC Motor Controller  
1 Features  
3 Description  
The DRV8308 controls sensored brushless DC  
motors with advanced features and a simple input  
interface. As a predriver, it drives the gates of 6  
external N-Channel MOSFETs with a configurable  
current of 10mA to 130mA for optimal switching  
characteristics.  
1
•
Three-Phase Brushless DC Motor Controller  
–
Digital Closed-Loop Speed Control with  
Programmable Gain and Filters  
•
•
Drives 6 N-Channel MOSFETs with Configurable  
10- to 130-mA Gate Drive  
Integrated Commutation from Hall Sensors  
The 3 motor phases are commutated according to the  
Hall sensor inputs. Once the motor reaches a  
consistent speed, the DRV8308 uses just 1 Hall  
sensor to minimize jitter caused by sensor mismatch.  
The Hall signal-to-drive timing can be advanced or  
delayed in 0.1% increments to optimize power  
efficiency. An optional 180° commutation mode drives  
sinusoidal current through the motor and minimizes  
audible noise and torque ripple. Peak motor current  
can be controlled by sizing a sense resistor.  
–
–
–
Timing Can Be Advanced/Delayed  
120° or 180°-sinusoidal current control  
Single Input Controls Motor Speed  
•
•
Operating Supply Voltage 8.5 to 32 V  
Flexible Configuration Methods  
–
–
–
Read Internal Non-Volatile Memory  
Read External EEPROM  
Write SPI  
The DRV8308 achieves closed-loop speed control to  
spin motors to a precise RPM across a wide range of  
load torques. The system matches motor  
speed—generated from an FG trace or the Hall  
sensors—to the reference frequency on pin CLKIN.  
The DRV8308 can also drive motors open-loop using  
a duty cycle command, from either a clock or register  
setting.  
•
•
•
•
•
Configurable Motor Current Limiter  
5-V Regulator for Hall Sensors  
Low-power Standby Mode  
Locked Rotor Detection and Restart  
Integrated Overcurrent, Overvoltage, and  
Overtemperature Protection  
An assortment of protection features bolster system  
robustness, as the DRV8308 handles and reports  
2 Applications  
overcurrent,  
overvoltage,  
undervoltage,  
•
•
•
•
Industrial Pumps, Fans, and Valves  
White Goods  
overtemperature, and locked rotors.  
Power Tools and Lawn Equipment  
Printers  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
DRV8308  
VQFN (40)  
6.00 mm × 6.00 mm  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
4 Simplified Schematic  
8.5V to 32 V  
Predrive  
DRV8308  
CLKIN  
DIR  
BLDC  
Controller  
M
FETs  
SPI  
Controller  
(optional)  
ISEN  
FGOUT  
Speed Control  
Protection  
EPROM  
FAULTn  
Hall sensors  
FG trace  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
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