Datasheet > A3903EEETR-T

A3903EEETR-T

更新时间： 2024-02-29 01:53:17

品牌	Logo	应用领域
急速微 - ALLEGRO		电动机控制光电二极管
页数	文件大小	规格书
8页	228K
描述
Stepper Motor Controller, 0.5A, PDSO8, 2 X 2 MM, 0.55 MM HEIGHT, LEAD FREE, MO-229UCCD, DFN-8

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技术参数
数据手册

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A3903EEETR-T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	SON
包装说明：	HVSON, SOLCC8,.08,20	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	7.98
模拟集成电路 - 其他类型：	STEPPER MOTOR CONTROLLER	JESD-30 代码：	S-PDSO-N8
JESD-609代码：	e3	长度：	2 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	0.5 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVSON
封装等效代码：	SOLCC8,.08,20	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
电源：	3.3/5 V	认证状态：	Not Qualified
座面最大高度：	0.6 mm	子类别：	Motion Control Electronics
最大供电电流 (Isup)：	2 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	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：	2 mm
Base Number Matches：	1

A3903EEETR-T 数据手册

Low Voltage DC Motor Driver

A3903

Application Information

Layout

nected to internal layers, if available, to maximize the

dissipation area.

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-

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

tion. The thermal pad should be soldered directly to an the connection between the exposed thermal pad and

exposed surface on the PCB. Thermal vias are used to the groundplane directly under the A3903, that area

transfer heat to other layers of the PCB. Thermal vias

becomes an ideal location for a star ground point. A

should not have any thermal relief and should be con- low impedance ground will prevent ground bounce

GND

OUTB

IN2

GND

VDD

CVDD

IN1

OUTB

GND

IN2

IN1

OUTA

A3903

CVDD

10 MF

GND

VDD

VREF

VSET

PAD

OUTA

A3903 Evaluation Board

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

1...3 4 567 8

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