The UC3843AD8TR is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched-mode power supplies. The start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During the under-voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
Features:
- Optimized for off-line and DC to DC converters
- Trimmed oscillator discharge current
- Automatic feed-forward compensation
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- Under-voltage lockout with hysteresis
- Double pulse suppression
- High current totem pole output Internally trimmed bandgap reference
- Low RO Error amplifier
- Green product and no Sb/Br
Package Includes:
1 x UC3843AD8TR-TEXAS INSTRUMENTS-Current Mode PWM, 30V-7.6V supply, 500 kHz, 15V/1A out, SOIC-8
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