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参数资料
| 型号： | A3949SLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/7页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRVR PWM FULL 16TSSOP |
| 标准包装： | 1 |
| 应用： | PWM 电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±2.8A |
| 电源电压： | 8 V ~ 36 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 标准包装 |
| 其它名称： | 620-1132-6 |
A3949
DMOS Full-Bridge Motor Driver
Features and Benefits
? Single supply operation
? Very small outline package
? Low R DS(ON) outputs
? Sleep function
? Internal UVLO
? Crossover current protection
? Thermal shutdown protection
Packages:
Description
Designed for PWM (pulse width modulated) control of DC
motors, the A3949 is capable of peak output currents to ±2.8 A
and operating voltages to 36 V.
PHASE and ENABLE 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 reduce power
dissipation during PWM operation.
Internal circuit protection includes thermal shutdown with
hysteresis, undervoltage monitoring of V BB and V CP , and
crossover current protection.
The A3949 is supplied in a power package, a 16-pin plastic SOIC
with a copper batwing tab (part number suffix LB ). The packages
are lead (Pb) free, with 100% matte tin leadframes.
Package LB, 16-pin SOIC
with internally fused pins
Not to scale
Functional Block Diagram
.22 μ F
25 V
0.1 μ F
VREG
CP1
CP2
Low Side
Gate Supply
OSC
Charge
Pump
VCP
0.1 μ F
Load
MODE
PHASE
VBB
0.1 μ F
OUTA
Supply
100 μ F
Control
Logic
OUTB
ENABLE
SENSE
SLEEP
DMOS Full Bridge
GND
GND
29319.47i
相关PDF资料 |
PDF描述 |
|---|---|
| A3950SLP-T | IC MOTOR DRIVER PWM FULL 16-TSSO |
| A3953SLBTR-T | IC MOTOR DRIVER PWM FULL 16-SOIC |
| A3955SLBTR-T | IC MOTOR DRIVER PWM FULL 16-SOIC |
| A3959SLP-T | IC MOTOR DRIVER PWM FULL 28TSSOP |
| A3966ELBTR-T | IC MOTOR DVR FULL BRIDGE 16SOICW |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A-394SRD | 制造商:Paralight Electronics Co. 功能描述:LED 4DIGIT HT 0.394-INCH SUPERRED |
| A3950 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:DMOS Full-Bridge Motor Driver |
| A3950_06 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:DMOS Full-Bridge Motor Driver |
| A3950-0000T | 制造商:3M 制造商全称:3M Electronics 功能描述:100 x 100, PCB Two Row |
| A3950-0010T | 制造商:3M 制造商全称:3M Electronics 功能描述:100 x 100, PCB Two Row |
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