UC3844 Current Mode Controller IC
- High Performance Current Mode Controller
- Total Power Supply and Zener Current: 30mA
- Output Current:Â 1A
- Reference Output Voltage: 5V
- Line Regulation Max: 20mV
- Load Regulation Max: 25mV
- Frequency: 52KHz
- Input Bias Current Max: -10µA
- Propagation Delay Max: 300ns
- Low Level Output Voltage: 0.1V
- High Level Output Voltage: 13.5V
- Startup Threshold Max: 17.5V
- Package: DIP-8
- Optimized for off-line and DC-to-DC converters
- Â Low start-up current (< 1 mA)
- Automatic feedforward compensation
- Pulse-by-pulse current limiting
- Enhanced load-response characteristics
- Undervoltage lockout with hysteresis
- Double-pulse suppression
- High-current totem-pole output
- Internally trimmed bandgap reference
- Up to 500-kHz operation
- Error amplifier with low output resistance