- 您现在的位置：买卖IC网 > PDF目录1772 > A1442EEWLT-P (Allegro Microsystems Inc)IC DC MOTOR DRIVER LV 6-MLP PDF资料下载
参数资料
| 型号： | A1442EEWLT-P |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | IC DC MOTOR DRIVER LV 6-MLP |
| 产品变化通告： | Pre-EOL Notice 07/Feb/2012 |
| 标准包装： | 1 |
| 应用： | DC 电机驱动器，无刷（BLDC） |
| 输出数： | 1 |
| 电流 - 输出： | 400mA |
| 电源电压： | 2 V ~ 4.2 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-XFDFN 裸露焊盘 |
| 供应商设备封装： | 6-MLP/DFN 裸露焊盘（1.5x2） |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1210-6 |
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
Reverse voltage protection on VDD and Sˉ ˉLˉ ˉEˉ ˉEˉ ˉP 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
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 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, the
motor control circuitry, and the full output bridge. Low-voltage
design techniques have been employed to achieve full device
functionality down to low V DD 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.
The A1442 employs a soft-switching algorithm to reduce audible
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
Package: 6 pin MLP/DFN (suffix EW)
1.5 mm × 2 mm, 0.40 mm maximum overall height
Approximate scale
for switching the device on and off.
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
ideally suited for use in applications where printed circuit board
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.
Functional Block Diagram
VDD
Reverse Battery
Output
Full Bridge
SLEEP
Power and Sleep
Mode Control
Active Braking
Control
Drive Logic
and
Q1
Q3
VOUT1
0.1 μ F
Hall
Stall Detection
Soft Switching
Control
VOUT2
Element
Q2
Am p
Q4
M
Thermal Shutdown
Protection
GND
A1442-DSW, Rev. 2
相关PDF资料 |
PDF描述 |
|---|---|
| A1448EEWLT-P | IC MOTOR DVR BLDC FULLBRDG MLP |
| A2550KLPTR-T | IC RELAY DRVR AUTO W/REG 16TSSOP |
| A3901SEJTR-T | IC MOTOR DRVR STEPPER DUAL 10MLP |
| A3903EEETR-T | IC MOTOR DRIVER DC LV 8-DFN |
| A3904ECGTR | IC VOICE COIL MOTOR DVR 6-WLCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A1444EEWLT-P | 功能描述:IC MOTOR DVR FULL BRIDGE 6-MLP RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
| A1445EEWLT-P | 功能描述:IC MOTOR DVR FULL BRIDGE 6-MLP RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
| A14474-000 | 制造商:TE Connectivity 功能描述:HX-SCE-4.8-50-S1-4 |
| A1448 | 制造商:STIMPSON 功能描述: |
| A1448EEWLT-P | 功能描述:IC MOTOR DVR BLDC FULLBRDG MLP RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:步进电机驱动器，1-2 相，2 相 评估套件:- 输出数:1 电流 - 输出:800mA 电压 - 负载:10 V ~ 28 V 电源电压:4.75 V ~ 5.25 V 工作温度:-20°C ~ 90°C 安装类型:表面贴装 封装/外壳:28-SOP + 2 翼片裸露焊盘 供应商设备封装:28-HSOPHC（15.2x7.9） 包装:剪切带 (CT) 其它名称:869-1268-1 |
发布紧急采购，3分钟左右您将得到回复。