ZHCS276F September 2011 – February 2025 DRV8818
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Detailed Description
- 7 Application and Implementation
- 8 Device and Documentation Support
- 9 Revision History
- 10Mechanical, Packaging, and Orderable Information
封裝選項
機械數據 (封裝 | 引腳)
- PWP|28
散熱焊盤機械數據 (封裝 | 引腳)
- PWP|28
訂購信息
7.2.2.2 Current Regulation
In a stepper motor, the set full-scale current (IFS) is the maximum current driven through either winding. This quantity depends on the VREF analog voltage and the sense resistor value (RSENSE). During stepping, IFS defines the current chopping threshold (ITRIP) for the maximum current step. The gain of DRV8818 is set for 8V/V.
Equation 7. 
To achieve IFS = 1.25A with RSENSE of 0.1?, set VREF to 1.56V.