dmos h-安桥功放官网放

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典型数字控制系统
大小:6.26MB
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新颖的串行控制步进电机驱动器
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24V转换5V需要加多大电阻
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.主要性能参数及引脚定义
LMD18245的主要性能参数
工作温度范围: -40℃~+125℃
电机电源电压范围:+12V~+55V
最大逻辑电压:+12V
最大输出持续电流:3A
最大输出峰值电流:6A
最小输入脉冲宽度:2μs
电流传感器最大线性误差(0.5A~3A):9%
LMD18245引脚定义LMD18245采用15脚TO-220封装,引脚排列如图1所示。各引脚功能如下:
OUT 1 OUT2: DMOS H-桥功放输出 接负载电机。
COMP OUT: 比较器输出。当电流传感器引脚CS OUT的电压超过D/A转换器给定电压时,比较...
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出门在外也不愁LMD18245 6A DC马达驱动器_百度文库
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LMD18245 6A DC马达驱动器
L​M​D84 A​ ​D​C​马​达​驱​动​器
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你可能喜欢Allegro MicroSystems - A3988: Quad DMOS Full Bridge PWM Motor Driver
A3988: Quad DMOS Full Bridge PWM Motor Driver
The A3988 is a quad DMOS full-bridge driver capable of driving up to two stepper motors or four dc motors. Each full-bridge output is rated up to 1.2 A and 36 V. The A3988 includes fixed off-time pulse width modulation (PWM) current regulators, along with 2-bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter steps, and dc motors in forward, reverse, and coast modes. The PWM current regulator uses the Allegro patented mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation.
Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation.
Protection features include thermal shutdown with hysteresis, undervoltage lockout (UVLO) and crossover current protection. Special power up sequencing is not required.
The A3988 is supplied in two packages, EV and JP, with exposed power tabs for enhanced thermal performance. The EV is a 6 mm × 6 mm, 36 pin QFN package with a nominal overall package height of 0.90 mm. The JP is a 7 mm × 7 mm 48 pin LQFP. Both packages are lead (Pb) free, with 100% matte tin leadframe plating.

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