參數(shù)資料
型號(hào): L9942XPTR
廠商: STMICROELECTRONICS
元件分類: 運(yùn)動(dòng)控制電子
英文描述: STEPPER MOTOR CONTROLLER, 2.5 A, PDSO24
封裝: LEAD FREE, POWER, SSO-24
文件頁數(shù): 39/40頁
文件大?。?/td> 664K
代理商: L9942XPTR
Block diagram and Pin information
L9942
20
RREF
Reference Resistor The reference resistor is used to generate a
temperature stable reference current used for current control and internal
oscillator. At this output a voltage of about 1.28V is present. The resistor
should be chosen that a current of about 200uA will flow through the
resistor.
21
EN
Enable input: The input requires CMOS logic levels. The EN input has a
pull-down resistor. In standby-mode outputs will be switched off and all
registers will be cleared. If EN is set to a logic high level then the device will
enter the active mode.
Table 1.
Pin Description (continued)
Pin
Symbol
Function
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