A3951

更新时间： 2024-02-11 22:00:20

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器电机
页数	文件大小	规格书
12页	202K
描述
FULL-BRIDGE PWM MOTOR DRIVER

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技术参数
数据手册

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A3951 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

A3951 数据手册

3951

FULL-BRIDGE

PWM MOTOR DRIVER

ELECTRICAL CHARACTERISTICS (Continued)

Limits

Typ. Max. Units

Characteristic

Symbol

Test Conditions

Min.

Control Logic

Logic Supply Voltage Range

Logic Input Voltage

V_CC

V_IN(1)

V_IN(0)

I_IN(1)

I_IN(0)

V_REF

I_REF

–

Operating

4.5

2.0

–

5.0

–

5.5

–

0.8

Logic Input Current

V_IN= 2.0 V

–

<1.0

<-2.0

–

µA

V_IN= 0.8 V

–

-200

V_CC

Reference Voltage Range

Reference Input Current

Reference Voltage Divider Ratio

PWM RC Fixed Off Time

PWM Minimum On Time

Operating

2.0

9.5

–

2.0 V ≤ V_REF≤ V_CC

µA

–

V_REF= 5 V

10.0

10.5

t_off

C_T= 1000 pF, R_T= 20 kΩ

C_T= 820 pF, R_T≥ 12 kΩ

C_T= 1200 pF, R_T≥ 12 kΩ

I_OUT= 2.0 A, 50% E_INto 90% E_OUTtransition:

ENABLE on to source driver on

ENABLE off to source driver off

ENABLE on to sink driver on

ENABLE off to sink driver off

PHASE change to source driver on

PHASE change to source driver off

PHASE change to sink driver on

PHASE change to sink driver off

Comparator trip to sink driver off

µs

t_on(min)

1.7

2.5

3.0

3.8

–

Propagation Delay Time

t_pd

–

2.9

0.7

2.4

0.7

2.9

0.7

2.4

0.7

0.8

165

–

µs

°C

–

t_pd(pwm)

T_J

–

1.5

–

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

UVLO Disable Threshold

UVLO Hysteresis

–

∆T_J

–

V_CC(UVLO)

∆V_CC(UVLO)

I_CC(ON)

3.15

300

–

3.50

400

3.85

500

Logic Supply Current

(No Load)

V_ENABLE= 0.8 V, V_REF= 2.0 V

V_ENABLE= V_REF= 2.0 V

V_REF= 0.8 V

I_CC(OFF)

I_CC(BRAKE)

–

NOTES: 1. Typical Data is for design information only.

2. Each driver is tested separately.

3. Negative current is defined as coming out of (sourcing) the specified device terminal.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

1 2 345 6 7...12

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