The DRV8805 provides an integrated solution for driving unipolar stepper motors. It includes four low-side drivers with overcurrent protection and provides built-in diodes to clamp turnoff transients generated by the motor windings.

Indexer logic to control a unipolar stepper motor using a simple step/direction interface is also integrated. Three stepping modes are supported: 2 phase (full-step), 1-2 phase (half-step), and 1-phase (wave drive).

In the SOIC (DW) package, the DRV8805 can supply up to 1.5-A (one channel on) or 800-mA (all channels on) continuous output current per channel, at 25°C. In the HTSSOP (PWP) package, it can supply up to 2-A (one channel on) or 1-A (four channels on) continuous output current per channel, at 25°C with proper PCB heatsinking.

Internal shutdown functions are provided for overcurrent protection, short-circuit protection, under voltage lockout, and overtemperature, and faults are indicated by a fault output pin.

The DRV8805 is available in a 20-pin thermally-enhanced SOIC package and a 16-pin HTSSOP package (Eco-friendly: RoHS & no Sb/Br).

• 4-Channel Protected Low-Side Driver
  • Four NMOS FETs With Overcurrent Protection
  • Integrated Inductive Clamp Diodes
• Indexer/Translator for Unipolar Stepper Motors
  • Simple Step/Direction Interface
  • Three Step Modes (2-Phase Full-Step, 1-2- Phase Half-Step, 1-Phase Wave Drive)
• DW Package: 1.5-A (Single Channel On) / 800-mA (Four Channels On) Maximum Drive Current per Channel (at 25°C)
• PWP Package: 2-A (Single Channel On) / 1-A (Four Channels On) Maximum Drive Current per Channel (at 25°C, With Proper PCB Heatsinking)
• 8.2-V to 60-V Operating Supply Voltage Range
• Thermally Enhanced Surface Mount Package

• Vs (Min) (V)
• 8.2
• Vs ABS (Max) (V)
• 43
• Full-scale current (A)
• 1.5
• Peak output current (A)
• 2.3
• RDS(ON) (HS + LS) (mOhms)
• 500
• Control mode
• STEP/DIR
• Control interface
• Hardware (GPIO)
• Micro-stepping levels
• 2
• Rating
• Catalog
• Operating temperature range (C)
• -40 to 125

DRV8805的完整型号有：DRV8805DW、DRV8805DWR、DRV8805PWP、DRV8805PWPR，以下是这些产品的关键参数及官网采购报价：

DRV8805DW，工作温度：-40 to 125，封装：SOIC (DW)-20，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8805DW的批量USD价格：1.614（1000+）

DRV8805DWR，工作温度：-40 to 125，封装：SOIC (DW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8805DWR的批量USD价格：1.384（1000+）

DRV8805PWP，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：90个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8805PWP的批量USD价格：1.499（1000+）

DRV8805PWPR，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8805PWPR的批量USD价格：1.268（1000+）

DRV8805EVM DRV8805 评估模块

DRV8805 评估模块包含四路低侧电机驱动器（具有内置分度器控制接口），可用于驱动单极步进电机（按全步进、半步进或波模式）。凭借 DRV8805EVM，设计人员能在其特定应用中快速轻松地评估 DRV8805 电机驱动器的性能。该 EVM 附带板载 MSP430 微处理器（已进行预编程，适合独立操作）。由 TPS7A4001 提供 MSP430 调节电压。此 EVM 可在 8.2V 至 60V 的电源电压下工作。