• Device Type: Switching Regulator Control and Drive Unit
• Technology: Bipolar Linear Integrated Circuit
• Function: PWM (Pulse Width Modulation) controller for switched-mode power supplies (SMPS)
• Package: 24-pin DIP (DIL-24)
• Control Topologies Supported:
  • Push-pull converters
  • Bridge converters
  • Series converters
  • Single-ended converters
• Switching Frequency: Typically 20 kHz to 30 kHz
• Built-In Functions:
  • Oscillator
  • Ramp generator
  • Comparator
  • Series regulator
  • Shunt regulator
  • Steering logic
  • Two pairs of push-pull output drivers
  • Error amplifiers
• Output Configuration: Dual push-pull buffered outputs for driving external switching transistors
• Protection Features:
  • PWM control
  • Overlap control to prevent simultaneous switching conduction
  • Closed-loop regulation capability
• External Components Required: Fewer than 20 external components for a complete SMPS design
• Power Capability: Suitable for switched-mode power supplies up to approximately 100 W

Applications

• Switched-mode power supplies (SMPS)
• Computer power supplies
• Industrial power supplies
• Photocopiers
• Inverters
• Telecommunications equipment
• Electronic control systems