UC3843 -Current Mode PWM Controller

Description of product

UC3843D Current Mode PWM Controller -DIP
The UC3842/UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits featrue a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totempole output for driving a Power MOSFET.
  • Fixed Frequency Current-Mode PWM Controller
  • Low Start Up Current
  • Maximum Duty Clamp
  • UVLO with Hysteresis
  • Operating Frequency up to 500kHz
*Image shown is a representation only.