UC3845

Description

• Operating Voltage Range: 7.6V to 30V.
• Oscillator Frequency: Typically 100kHz, but can be adjusted up to 500kHz.
• Maximum Duty Cycle: 50%.
• Output Current: 1A (maximum).
• Output Configuration: Positive or negative, isolation capable.
• Control Features: Frequency control, current limiting, dead time control, error amplifier, fixed frequency, multi-topology.
• Operating Temperature Range: 0°C to 70°C.
• Start-up Current: Typically 0.5mA (maximum).
• Operating Supply Current: Typically 11mA.
• Output Voltage Swing: Typically 0.3V (low) to Vcc – 1.2V (high).
• Current Sense Threshold: 1V (typical).
• Under voltage Lockout (UVLO): With hysteresis, thresholds vary by specific device (e.g., UC3845B has UVLO thresholds of 8.5V and 7.9V).
• Package Options: DIP-8 and SOIC-8.