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DRV8805为驱动单极步进电机提供了集成解决方案。它包括四个带过电流保护的低侧驱动器,并提供内置二极管来钳制电机绕组产生的关断瞬态。
使用简单的步进/方向接口控制单极步进电机的分度器逻辑也是集成。支持三种步进模式:2相(全步),1-2相(半步)和1相(波驱动)。
在SOIC(DW)封装中,DRV8805每通道可在25°C时提供高达1.5 A(单通道开启)或800 mA(所有通道开启)的连续输出电流。在HTSSOP(PWP)封装中,它可以为每个通道提供高达2 A(一个通道开启)或1 A(四个通道开启)的连续输出电流,在25°C时具有适当的PCB散热。
< p>提供内部关断功能,用于过流保护,短路保护,欠压锁定和过热,故障由故障输出引脚指示。DRV8805采用20引脚热封装 - 增强型SOIC封装和16引脚HTSSOP封装(环保:RoHS和无Sb /Br)。
Vs (Min) (V) |
Vs (Max) (V) |
RDS(ON) (HS + LS) (mOhms) |
RMS Output Current (A) |
Peak Output Current (A) |
Micro-Stepping Levels |
Control I/F |
Features |
Pin/Package |
Rating |
Operating Temperature Range (C) |
DRV8805 | DRV8803 | DRV8804 | DRV8806 | DRV8860 |
---|---|---|---|---|
8.2 | 8.2 | 8.2 | 8.2 | 8 |
60 | 60 | 60 | 40 | 38 |
500 | 500 | 500 | 500 | 1500 |
2 | 2 | 2 | 2 | 0.566 |
2 | 2 | 2 | 2 | 0.566 |
2 | ||||
STEP/DIR | PWM | Serial | Serial | Serial |
Unipolar Integrated Catch Diodes | Unipolar Integrated Catch Diodes | Unipolar Integrated Catch Diodes SPI Control Interface | Unipolar Integrated Catch Diodes SPI Control Interface Open-Load Detect | Unipolar Integrated Catch Diodes Open-Load Detect SPI Control Interface |
16HTSSOP 20SOIC | 16HTSSOP 20SOIC | 16HTSSOP 20SOIC | 16HTSSOP | 16HTSSOP 16TSSOP |
Catalog | Catalog | Catalog | Catalog | Catalog |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 |