UC2843B Overview
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...
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
