UC3845B Fixed Frequency Current Mode Controller IC

The UC3845 fixed frequency current mode controller is made for off-line and DC-to-DC converter applications and provides a low-cost option with few external components for the designer. These coordinated circuits include a managed oscillator for exact obligation cycle control‚ a temperature repaid reference‚ high increase blunder speaker‚ current detecting comparator‚ and a high current chain of command yield unmistakably appropriate for driving a power MOSFET

Features:

• Trimmed Oscillator Discharge Current for Precise Duty Cycle Control

• Current Mode Operation to 500 kHz

• Automatic Feed Forward Compensation

• Latching PWM for Cycle−By−Cycle Current Limiting

• Internally Trimmed Reference with Under voltage Lockout

• High Current Totem Pole Output

• Under voltage Lockout with Hysteresis