BD63725BEFV数据手册开发板套件编程器的评估演示板及套件规格书PDF

描述 Description

BD63725BEFV是额定电源36V､额定输出电流2.5A的低功耗双极PWM恒流驱动器。输入接口采用CLK-IN驱动方式，通过内置DAC，励磁模式可适用于FULL STEP､HALF STEP(2种)､QUATER STEP模式。电流衰减方式方面可任意设定FAST DECAY/SLOW DECAY的比率，可对所有电机实现很好的控制状态。另外，也可使用一个系统电源进行驱动，有助于提高整机设计的便利性。

特性 Features

• Rated output current (DC) 2.5A
• Low ON resistance DMOS output
• CLK-IN drive mode
• PWM constant current (other oscillation)
• Built-in spike noise cancel function
(external noise filter is unnecessary)
• Full-, half (two kinds)-, quarter-step functionality
• Freely timing excitation mode switch
• Current decay mode switch (linearly variable FAST/SLOW DECAY ratio)
• Normal rotation & reverse rotation switching function
• Power save function
• Built-in logic input pull-down resistor
• Power-on reset function
• Thermal shutdown circuit (TSD)
• Over-current protection circuit (OCP)
• Under voltage lock out circuit (UVLO)
• Over voltage lock out circuit (OVLO)
• Ghost Supply Prevention
(protects against malfunction when power supply is disconnected)
• Adjacent pins short protection
• Microminiature, ultra-thin and high heat-radiation
(exposed metal type) package