参数资料
型号: A1442EEWLT-P
厂商: Allegro Microsystems Inc
文件页数: 6/9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
Low Voltage Full Bridge Brushless DC Motor Driver
A1442
with Hall Commutation and Soft Switching,
and Reverse Battery, Short Circuit, and Thermal Shutdown Protection
Application Information
Two typical application circuits are shown in figures 4 and 5. The
first application circuit shows the device Sˉ ˉLˉ ˉEˉ ˉEˉ ˉP pin controlled
by the user. Figure 5 illustrates an application circuit where the
device VDD and Sˉ ˉLˉ ˉEˉ ˉEˉ ˉP pin are connected together.
Note that:
?? No external diode is required for reverse battery protection
because the protection is fully integrated into the IC.
?? Thermal shutdown is integrated also.
V BATT
A bypass capacitor of 0.1 μ F is required between VDD and GND
for proper device operation through the full specified supply volt-
age range.
VDD
VOUT1
System Logic
C BYP
A1442
Control
I/O
SLEEP
VOUT2
M
NC
GND
Figure 4. Application circuit showing user-controlled sleep/enable mode, while the
A1442 remains powered at all times
V BATT
System Logic
VDD
A1442
VOUT1
Control
I/O
C BYP
SLEEP
NC
VOUT2
GND
M
Figure 4. Application circuit showing simultaneous user control of power supply and
sleep mode.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
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