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参数资料
| 型号： | A4950KLJTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DVR FULL-BRIDGE 8-SOIC |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，PWM 电机驱动器 |
| 评估套件： | * |
| 输出数： | 1 |
| 电流 - 输出： | 3.5A |
| 电压 - 负载： | 8 V ~ 40 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-SOICN 裸露焊盘 |
| 包装： | 标准包装 |
| 其它名称： | 620-1470-6 |
A4950
Full-Bridge DMOS PWM Motor Driver
Features and Benefits
? Low R DS(on) outputs
? Overcurrent protection (OCP)
? Motor short protection
? Motor lead short to ground protection
? Motor lead short to battery protection
? Low Power Standby mode
? Adjustable PWM current limit
? Synchronous rectification
? Internal undervoltage lockout (UVLO)
? Crossover-current protection
? A4950K is AEC-Q100 Grade 1 qualified
? Commercial temperature grade (A4950E: –40°C to 85°C )
? Automotive temperature grade (A4950K: –40°C to 125°C)
Package: 8-pin SOICN with exposed
thermal pad (suffix LJ)
Description
Designed for pulse width modulated (PWM) control of DC
motors, the A4950 is capable of peak output currents to ±3.5 A
and operating voltages to 40 V.
Input terminals are provided for use in controlling the speed and
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.
Internal circuit protection includes overcurrent protection,
motor lead short to ground or supply, thermal shutdown with
hysteresis, undervoltage monitoring of V BB , and crossover-
current protection.
For high ambient operating temperature applications, an
automotive grade device is offered (A4950K). The K grade
device is tested across extended temperature and voltage
ranges to ensure compliance in automotive or industrial
applications.
The A4950 is provided in a low-profile 8-pin SOICN package
with exposed thermal pad (suffix LJ) that is lead (Pb) free, with
100% matte tin leadframe plating.
Not to scale
Functional Block Diagram
Load Supply
IN1
IN2
Control
Logic
Disable
OSC
Charge
Pump
TSD
UVLO
VBB
OUT1
OUT2
7V
GND
LSS
A4950-DS, Rev. 4
VREF
÷ 10
(Optional)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A4952 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Designed for pulse width modulated (PWM) control of DC motors, the A4952 and A4953 are capable of peak output currents to ?±2 A and operating voltages to 40 V. |
| A4952ELYTR-T | 功能描述:IC PWM MOTOR DVR FULL 10-MSOP 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 |
| A4953 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Designed for pulse width modulated (PWM) control of DC motors, the A4952 and A4953 are capable of peak output currents to ?±2 A and operating voltages to 40 V. |
| A495302 | 功能描述:栅栏接线端子 DISCONNECT BLOCK RoHS:否 制造商:TE Connectivity / AMP 产品:Barrier Terminal Blocks 系列: 类型:Dual Barrier, Flat Block without Mounting Ears 节距:9.53 mm 位置/触点数量:2 线规量程:22-12 电流额定值:20 A 电压额定值:300 V 安装风格:Through Hole 安装角:Vertical 端接类型:Screw 触点电镀:Tin |
| A495302CW | 功能描述:栅栏接线端子 MAGNUM A4 SERIES RoHS:否 制造商:TE Connectivity / AMP 产品:Barrier Terminal Blocks 系列: 类型:Dual Barrier, Flat Block without Mounting Ears 节距:9.53 mm 位置/触点数量:2 线规量程:22-12 电流额定值:20 A 电压额定值:300 V 安装风格:Through Hole 安装角:Vertical 端接类型:Screw 触点电镀:Tin |
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