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A1442EEWLT-P PDF预览

A1442EEWLT-P

更新时间: 2024-02-29 20:49:25
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器运动控制电子器件信号电路光电二极管电动机控制
页数 文件大小 规格书
8页 326K
描述
Low Voltage Full Bridge Brushless DC Motor Driver with Hall Commutation

A1442EEWLT-P 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SON包装说明:HVSON, SOLCC6,.08,20
针数:6Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.81Is Samacsys:N
模拟集成电路 - 其他类型:BRUSHLESS DC MOTOR CONTROLLERJESD-30 代码:R-PDSO-N6
JESD-609代码:e4长度:2 mm
湿度敏感等级:1功能数量:1
端子数量:6最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:0.4 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC6,.08,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:2/4 V认证状态:Not Qualified
座面最大高度:0.4 mm子类别:Motion Control Electronics
最大供电电流 (Isup):6 mA最大供电电压 (Vsup):4.2 V
最小供电电压 (Vsup):2 V标称供电电压 (Vsup):3 V
表面贴装:YES技术:CMOS
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:DUAL处于峰值回流温度下的最长时间:40
宽度:1.5 mmBase Number Matches:1

A1442EEWLT-P 数据手册

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A1442  
Low Voltage Full Bridge Brushless DC Motor Driver with Hall Commutation and  
Soft-Switching, and Reverse Battery, Short Circuit, and Thermal Shutdown Protection  
Features and Benefits  
Description  
Low voltage operation  
The A1442 is a full-bridge motor driver designed to drive  
low-voltage, brushless dc motors. Commutation of the motor  
is achieved by use of a single Hall element sensor to detect the  
rotational position of an alternating-pole ring magnet. A high-  
density CMOS semiconductor process allows the integration  
of all the necessary electronics. This includes the Hall element  
sensor, the motor control circuitry, and the full output bridge.  
Low-voltage design techniques have been employed to achieve  
full device functionality down to low VDD values. This fully  
integrated single chip solution provides enhanced reliability  
(including reverse battery protection and output short circuit  
protection) and eliminates the need for any external support  
components.  
¯¯¯¯¯¯¯¯  
Reverse voltage protection on VDD and SLEEP pins  
Output short circuit and thermal shutdown protections  
Soft switching algorithm to reduce audible switching  
noise and EMI interference  
Unidirectional working mode provides motor rotation in  
one direction  
Hall chopper stabilization technique for precise signal  
response over operating range  
Sleep mode pin allowing external logic signal enable/  
disable to reduce average power consumption  
Antistall feature guarantees continuous rotation  
Low current consumption sleep mode  
Single-chip solution for high reliability  
Miniature MLP/DFN package  
TheA1442employsasoft-switchingalgorithmtoreduceaudible  
switching noise and EMI interference. A micropower sleep  
mode can be enabled by an external signal, to reduce current  
consumption for battery management in portable electronic  
devices. This feature allows the removal of a FET transistor  
for switching the device on and off.  
Package: 6 pin MLP/DFN (suffix EW)  
1.5 mm × 2 mm, 0.40 mm maximum overall height  
The A1442 is optimized for vibration motor applications in  
cellular phones, pagers, electronic toothbrushes, hand-held  
video game controllers, and low power fan motors.  
The small package outline and low profile make this device  
ideallysuitedforuseinapplicationswhereprintedcircuitboard  
area and component headroom are at a premium. It is available  
in a lead (Pb) free, 6 pin MLP/DFN microleadframe package,  
with an exposed pad for enhanced thermal dissipation.  
Approximate scale  
Functional Block Diagram  
VDD  
Output  
Full Bridge  
Reverse Battery  
Q1  
Q3  
SLEEP  
Power and Sleep  
Mode Control  
Active Braking  
Control  
Drive Logic  
and  
VOUT1  
VOUT2  
Soft Start  
Control  
Stall Detection  
0.1 μF  
Hall  
Element  
Q2  
Amp  
M
Q4  
Thermal Shutdown  
Protection  
GND  
A1442-DSS  

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