Description

The LM384N is an audio amplifier electronic component model that belongs to the category of audio amplifiers. It is a fixed frequency current-mode PWM controller that is extensively used in off-line and DC-to-DC converter applications with minimal external components. The integrated circuits in LM384N come with a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, high-gain error amplifier, current sensing comparator, and a high-current totem pole output ideally suited for driving a power MOSFET. Furthermore, it features protection circuitry that includes a built-in under-voltage lockout and current limiting.

Specifications and features

● Automatic Feed Forward Compensation
● Optimized for Offline Converter
● Double Pulse Suppression
● Current Mode Operation to 500 KHz
● High Gain Totem Pole Output
● Internally Trimmed Bandgap reference
● Undervoltage Lockout with Hysteresis
● Low Start-Up Current: ＜ 0.3 mA
● Moisture Sensitivity Level 3

Application Scenarios

The LM384N electronic component is commonly used in a wide range of applications, including audio power amplifiers, power inverters for AC-motors, LED drivers, and DC-to-DC converters, to name a few. Its unique features, such as a high-gain totem pole output and automatic feedforward compensation, make it a perfect choice for both offline and DC-to-DC converter applications with minimal external components.

Comparison

• Automatic Feed Forward Compensation
• High-gain totem pole output
• Double Pulse Suppression
• Undervoltage Lockout with Hysteresis
• Low Start-Up Current: ＜ 0.3 mA
• Internally Trimmed Bandgap reference

• Not suitable for applications requiring high power output
• It works only up to 500 kHz frequency