ZHCSQT3K October 2009 – January 2022 DRV8824
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
In a stepper motor, the set full-scale current (IFS) is the maximum current driven through either winding. This quantity depends on the xVREF 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 DRV8824 is set for 5 V/V.
To achieve IFS = 1.25 A with RSENSE of 0.4 Ω, xVREF should be 2.5 V.