3BR1765JZ Offline SMPS Current Mode Controller IC
- Offline SMPS Current Mode Controller
- Drain Voltage: 650V
- Supply Voltage: 25V
- Supply Current: 5mA
- 650V avalanche rugged CoolMOS® with built-in Startup Cell
- Active Burst Mode for lowest Standby Power
- Â Fast load jump response in Active Burst Mode
- 65kHz internally fixed switching frequency
- Auto Restart Protection Mode for Overload, OpenLoop, VCC Undervoltage, Overtemperature & Overvoltage
- Â Built-in Soft Start
- Â Built-in blanking window with extendable blanking time for short duration high current
- Â External auto-restart enable pin
- Max Duty Cycle 75%
- Overall tolerance of Current Limiting < ±5%
- Â Internal PWM Leading Edge Blanking
- BiCMOS technology provide wide VCC range
- Built-in Frequency jitter and soft driving for low EMI
UC3843A Current Mode Controller IC
- High Performance Current Mode Controller
- Bias and Drive Voltages: 30V
- Total Power Supply and Zener Current: 30mA
- Output Current: 1A
- Reference Output Voltage: 5V
- Line Regulation Max: 20mV
- Load Regulation Max: 25mV
- Frequency: 52KHz
- Low Level Output Voltage: 0.1V
- High Level Output Voltage: 13.5V
- Startup Threshold Max: 9V
- Package: DIP-8
UC3842A Current Mode Controller IC
- High Performance Current Mode Controller
- Bias and Drive Voltages: 30V
- Total Power Supply and Zener Current: 30mA
- Output Current: 1A
- Reference Output Voltage: 5V
- Line Regulation Max: 20mV
- Load Regulation Max: 25mV
- Frequency: 52KHz
- Low Level Output Voltage: 0.1V
- High Level Output Voltage: 13.5V
- Startup Threshold Max: 9V
- Package: DIP-8
- Optimized for Off-Line and DC to DC Converters
- Low Start Up Current (< 1 mA)
- Automatic Feed Forward Compensation
- Pulse-By-Pulse Current Limiting
- Enhanced Load Response Characteristics
- Â Under-Voltage Lockout with Hysteresis
- Double Pulse Suppression
- High Current Totem Pole Output
- Bandgap Reference
- Â Low Ro Error Amp
- Up to 500-kHz Operation