CS2844 Datasheet | onsemi

CS2844, CS3844, CS2845, CS3845 Current Mode PWM Control Circuit with 50% Max Duty Cycle The CS3844/45 provides all the necessary Features to implement off- line fixed frequency current- mode control with a minimum number of external ponents. The CS3844 family incorporates a new precision temperature- controlled oscillator to minimize variations in frequency. An internal toggle flip- flop, which blanks the output every other clock cycle, limits the duty- cycle range to less than 50%. An undervoltage lockout ensures that VREF is stabilized before the output stage is enabled. In the CS2844/CS3844 turn on occurs at 16 V and turn off at 10 V. In the CS2845/CS3845 turn on is at 8.4 V and turn off...