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UC2843B Key Features

  • Current mode operation:500 kHz
  • Low start-up current value<0.5mA
  • Latching PWM for cycle-by-cycle current limiting
  • Trimmed oscillator discharge current
  • Automatic feed-forward pensation
  • Internally trimmed reference with UVLO
  • High-current totem-pole output UVLO with hysteresis
  • Double-pulse suppression
  • ORDERING INFORMATION
  • MARKING

Other UC2843B Datasheets

Manufacturer Part Number Description
ST Microelectronics Logo STMicroelectronics UC2843B HIGH-PERFORMANCE CONTROLLER
ON Semiconductor Logo onsemi UC2843B HIGH-PERFORMANCE CONTROLLERS
American First Semiconductor Logo American First Semiconductor UC2843B Controllers
ST Microelectronics Logo STMicroelectronics UC2843BN HIGH-PERFORMANCE PWM CONTROLLER
STMicroelectronics Logo STMicroelectronics UC2843 CURRENTMODE PWM CONTROLLER

View all UC2843B datasheets →

UC2843B Description

The UTC UC2843B provides off-line or DC-DC fixed-frequency current-mode control design with minimum external ponents. Internally-implemented circuits include an under-voltage lockout (UVLO) and a precision reference with accuracy at the error amplifier input. The UTC UC2843B also contain internal circuits which include a pulse width modulation (PWM) parator providing current-limit control, logic ensuring latched...