UC3824DW High-Speed PWM Controller IC

UC3824DW High-Speed PWM Controller IC

The UC3824DW is a high-speed, low-power Pulse Width Modulation (PWM) controller designed by Texas Instruments. It is primarily used in DC-DC converters, power supplies, and motor control applications. The IC integrates advanced control features such as current mode control, under-voltage lockout (UVLO), and over-current protection, which enhance its performance and reliability in power conversion systems. The device is packaged in a surface-mount SOIC-16 (DW) package, allowing it to be used in compact designs.

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• Current-Mode Control: Allows precise regulation of output current, improving performance in power supply and motor control systems.
  

• Programmable Oscillator Frequency: Frequency can be set via external resistors and capacitors, supporting a wide range of operational requirements.
  

• Under-Voltage Lockout (UVLO): Prevents the controller from operating when the supply voltage is below a safe level, ensuring reliable startup.
  

• Soft Start: Limits the inrush current at startup, reducing stress on power components and increasing system reliability.
  

• Wide Supply Voltage Range: Operates over a wide input voltage range (8V to 30V), supporting various power designs.
  

• Fast PWM Operation: Supports high-speed switching, making it suitable for high-frequency DC-DC conversion applications.
  

Specifications of UC3824DW High-Speed PWM Controller IC

• Supply Voltage: 8V to 30V
  

• Output Current: 1A (typical drive capability)
  

• Oscillator Frequency: Programmable up to 1 MHz
  

• PWM Frequency: 500 kHz (max)
  

• UVLO Threshold: 7.6V (turn-on), 7.4V (turn-off)
  

• Soft Start: Adjustable soft start time via external components
  

Package Includes

• 1 x UC3824DW High-Speed PWM Controller IC