این آی س یک نوع کنترل کننده مد جریان PWM میباشد که در کنترل موتور های DC  کاربرد دارد پکیج این آی سی از نوع DIP  بوده و دارای 8 پایه میباشد

TheUC384xBfamilyofcontrolICsprovidesthenecessary features to implement off-line or DC to DC fixed frequencycurrent mode control schemes with a minimal external parts count. Internally implemented circuits includea trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockoutfeaturingstart-upcurrentless than0.5mA,a precision reference trimmed for accuracy at the error amp input,logicto insurelatchedoperation,a PWMDifferences between members of this family are the under-voltagelockout thresholdsand maximum duty cycle ranges. The UC3842B and UC3844B have UVLO thresholds of 16V (on) and 10V (off), ideally suitedoff-lineapplicationsThecorrespondingthresh oldsfortheUC3843BandUC3845Bare8.5Vand7.9