Datasheet > A3951SW

A3951SW

更新时间： 2024-01-06 04:18:40

品牌	Logo	应用领域
三垦 - SANKEN		局域网电动机控制
页数	文件大小	规格书
12页	170K
描述
Stepper Motor Controller, 3.5A, PSFM12, POWER, SIP-12

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技术参数
数据手册

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A3951SW 技术参数

生命周期：	Obsolete	零件包装代码：	SFM
包装说明：	,	针数：	12
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
模拟集成电路 - 其他类型：	STEPPER MOTOR CONTROLLER	JESD-30 代码：	R-PSFM-T12
功能数量：	1	端子数量：	12
最高工作温度：	85 °C	最低工作温度：	-20 °C
最大输出电流：	3.5 A	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	FLANGE MOUNT
认证状态：	Not Qualified	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	标称供电电压 (Vsup)：	5 V
表面贴装：	NO	温度等级：	OTHER
端子形式：	THROUGH-HOLE	端子位置：	SINGLE
Base Number Matches：	1

A3951SW 数据手册

3951

FULL-BRIDGE

PWM MOTOR DRIVER

For both cases, care must be taken to ensure that the

maximum current ratings of the device are not exceeded.

The load current will limit at a value

+5 V

I_LOAD= V_REF/(10•R_S).

CAUTION: When the direction of the motor is changed

abruptly, the kinetic energy stored in the motor and load

inertia will be converted into current that charges the V_BB

supply bulk capacitance (power supply output and

decoupling capacitance). Care must be taken to ensure

the capacitance is sufficient to absorb the energy without

exceeding the voltage rating of any devices connected to

the motor supply.

47 µF

LOGIC

See also, the section on brake operation under

“Functional Description”, above.

PHASE

ENABLE

Dwg. EP-047-1

Stepper Motor Applications

The A3951SB and A3951SW may be used for

bidrectional control of bipolar stepper motors with continu-

ous output currents to 2 A and peak start-up currents as

high as 3.5 A.

Typical DC Servo Motor Application

+5 V

47 µF

ENABLE

0.5 Ω

PHASE

REF2

LOGIC

PHASE

REF1

ENABLE

820 pF

25 kΩ

Dwg. EP-048-1

Typical Bipolar Stepper Motor Application

www.allegromicro.com

1...6 7 8910 11 12

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