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参数资料
| 型号： | A3903EEETR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER DC LV 8-DFN |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | 500mA |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-UFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN/MLP（2x2） |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1205-6 |
A3903
Low Voltage DC Motor Driver
Application Information
Layout
The printed circuit board should use a heavy ground-
plane for optimum thermal performance. The A3903
must be soldered directly onto the board. On the
underside of the A3903 package is an exposed pad,
which provides a path for enhanced thermal dissipa-
tion. The thermal pad should be soldered directly to an
exposed surface on the PCB. Thermal vias are used to
transfer heat to other layers of the PCB. Thermal vias
should not have any thermal relief and should be con-
nected to internal layers, if available, to maximize the
dissipation area.
Grounding In order to minimize the effects of ground
bounce and offset issues, it is important to have a
low impedance, single-point ground, known as a star
ground , located very close to the device. By making
the connection between the exposed thermal pad and
the groundplane directly under the A3903, that area
becomes an ideal location for a star ground point. A
low impedance ground will prevent ground bounce
OUTB
GND
CVDD
U1
GND
IN2
VDD
IN1
OUTA
R2
R1
CVDD
OUTB
GND
A3903
IN2
IN1
GND
10 F
VDD
PAD
VREF
R1
OUTA
VSET
R2
A3903 Evaluation Board
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3903EEETR-T-CUT | 制造商:Allegro MicroSystems LLC 功能描述: |
| A3904 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Low Voltage Voice Coil Motor Driver |
| A3904ECGTR | 功能描述:IC VOICE COIL MOTOR DVR 6-WLCSP 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 |
| A3904ECW | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Low Voltage Voice Coil Motor Driver |
| A3904EEWTR-P | 功能描述:IC MOTOR DRVR VOICE COIL LV 6DFN 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 |
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