5秒后页面跳转
A4931 PDF预览

A4931

更新时间: 2024-01-03 21:56:54
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器
页数 文件大小 规格书
9页 245K
描述
The A4931 is a complete 3-phase brushless DC motor pre-driver.

A4931 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:HVQCCN, LCC28,.2SQ,20针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.13
Samacsys Description:ALLEGRO MICROSYSTEMS - A4931METTR-T - MOTOR PREDRIVER, 3PH, 28QFN模拟集成电路 - 其他类型:BRUSHLESS DC MOTOR CONTROLLER
JESD-30 代码:S-XQCC-N28JESD-609代码:e3
长度:5 mm湿度敏感等级:2
功能数量:1端子数量:28
最高工作温度:105 °C最低工作温度:-20 °C
封装主体材料:UNSPECIFIED封装代码:HVQCCN
封装等效代码:LCC28,.2SQ,20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
认证状态:Not Qualified座面最大高度:1 mm
最大供电电流 (Isup):6 mA最大供电电压 (Vsup):37.5 V
最小供电电压 (Vsup):8 V标称供电电压 (Vsup):24 V
表面贴装:YES温度等级:OTHER
端子面层:Matte Tin (Sn)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:40宽度:5 mm
Base Number Matches:1

A4931 数据手册

 浏览型号A4931的Datasheet PDF文件第2页浏览型号A4931的Datasheet PDF文件第3页浏览型号A4931的Datasheet PDF文件第4页浏览型号A4931的Datasheet PDF文件第5页浏览型号A4931的Datasheet PDF文件第6页浏览型号A4931的Datasheet PDF文件第7页 
A4931  
3-Phase Brushless DC Motor Pre-Driver  
Features and Benefits  
Drives 6 N-channel MOSFETs  
Description  
TheA4931isacomplete3-phasebrushlessDCmotorpre-driver.  
Synchronous rectification for low power dissipation  
Internal UVLO and thermal shutdown circuitry  
Hall element inputs  
The device is capable of driving a wide range of N-channel  
power MOSFETs and can support motor supply voltages up to  
30 V. Commutation logic is determined by three Hall-element  
inputs spaced at 120°.  
PWM current limiting  
Dead time protection  
FG outputs  
Standby mode  
Lock detect protection  
Other features include fixed off-time pulse width modulation  
(PWM)currentcontrolforlimitinginrushcurrent,locked-rotor  
protectionwithadjustabledelay,thermalshutdown,overvoltage  
monitor, and synchronous rectification. Internal synchronous  
rectification reduces power dissipation by turning on the  
appropriate MOSFETs during current decay, thus shorting  
the body diode with the low RDS(on) MOSFET. Overvoltage  
protection disables synchronous rectification when the motor  
pumps the supply voltage beyond the overvoltage threshold  
during current recirculation.  
Overvoltage protection  
Package: 28-contact QFN (ET package)  
The A4931 offers enable, direction, and brake inputs that can  
control current using either phase or enable chopping. Logic  
outputs FG1 and FG2 can be used to accurately measure motor  
rotation. Output signals toggle state during Hall transitions,  
providing an accurate speed output to a microcontroller or  
speed control circuit.  
Approximate Scale 1:1  
Operating temperature range is –20°C to 105°C. The A4931  
is supplied in a 5 mm × 5 mm, 28-terminal QFN package with  
exposed thermal pad. This small footprint package is lead (Pb)  
free with 100% matte tin leadframe plating.  
Typical Application  
0.1 μF  
0.1 μF  
0.1 μF  
0.1 μF 2 kΩ  
CLD HBIAS CP1 CP2 VCP  
VBB  
GHA  
VIN  
VIN  
SA  
FG1  
A4931  
FG2  
M
GLA  
System  
Control  
Logic  
GHB  
SB  
GLB  
BRAKEZ  
ENABLE  
DIR  
GHC  
SC  
GLC  
SENSE  
GND  
HA+ HA– HB+ HB– HC+ HC–  
4931-DS, Rev. 4  

与A4931相关器件

型号 品牌 描述 获取价格 数据表
A4931MET SANKEN Brushless DC Motor Controller, QFN-28

获取价格

A4931METTR-T ALLEGRO Brushless DC Motor Controller, 5 X 5 MM, 0.90 MM HEIGHT, LEAD FREE, MO-220VHHD-1, QFN-28

获取价格

A4933 ALLEGRO The A4933 is a 3-phase controller for use with N-channel external power MOSFETs and is spe

获取价格

A4933KJPTR-T ALLEGRO Brushless DC Motor Controller, PQFP48, LEAD FREE, MS-026BBCHD, LQFP-48

获取价格

A4934 ALLEGRO Three-Phase Sensorless Fan Driver

获取价格

A4934GLPTR-T ALLEGRO Three-Phase Sensorless Fan Driver

获取价格