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A4954

更新时间: 2024-02-03 21:38:47
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器
页数 文件大小 规格书
9页 248K
描述
Dual Full-Bridge DMOS PWM Motor Driver

A4954 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:LEAD FREE, MO-153ABT, TSSOP-16针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:0.78
模拟集成电路 - 其他类型:BRUSH DC MOTOR CONTROLLERJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:5 mm
湿度敏感等级:2功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:2 A
封装主体材料:PLASTIC/EPOXY封装代码:HTSSOP
封装等效代码:TSSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:8/40 V认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Motion Control Electronics
最大供电电流 (Isup):0.01 mA最大供电电压 (Vsup):40 V
最小供电电压 (Vsup):8 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:4.4 mmBase Number Matches:1

A4954 数据手册

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A4954  
Dual Full-Bridge  
DMOS PWM Motor Driver  
Description  
Features and Benefits  
• Low RDS(on) outputs  
Designed for pulse width modulated (PWM) control of two  
DC motors, the A4954 is capable of peak output currents to  
±2 A and operating voltages to 40 V.  
• Overcurrent protection (OCP)  
Motor short protection  
Motor lead short to ground protection  
Motor lead short to battery protection  
• Low Power Standby mode  
Inputterminalsareprovidedforuseincontrollingthespeedand  
direction of a DC motor with externally applied PWM control  
signals. Internal synchronous rectification control circuitry is  
provided to lower power dissipation during PWM operation.  
• Adjustable PWM current limit  
• Synchronous rectification  
• Internal undervoltage lockout (UVLO)  
• Crossover-current protection  
Internal circuit protection includes overcurrent protection,  
motor lead short to ground or supply, thermal shutdown with  
hysteresis, undervoltage monitoring of VBB, and crossover-  
current protection.  
Package: 16-pin TSSOP with exposed  
thermal pad (suffix LP)  
TheA4954isprovidedinalow-profile16-pinTSSOPpackage  
with exposed thermal pad (suffix LP) that is lead (Pb) free,  
with 100% matte tin leadframe plating.  
Not to scale  
Functional Block Diagram  
Load  
Supply  
VBB  
Charge  
Pump  
OSC  
IN1  
Control  
Logic  
Disable  
OUT1  
OUT2  
TSD  
UVLO  
IN2  
7V  
GND  
LSS12  
VBB  
VREF12  
÷
10  
(Optional)  
Charge  
Pump  
OSC  
IN3  
Control  
Logic  
Disable  
OUT3  
OUT4  
TSD  
UVLO  
IN4  
7V  
GND  
LSS34  
VREF34  
÷
10  
(Optional)  
A4954-DS, Rev. 4  

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