UC3846N Texas Instruments

Description UC3846N Texas Instruments

The UC3846N from Texas Instruments is a PWM controller. It operates in current mode with a frequency up to 500 kHz. This part is suitable for use from 0°C to 70°C. It comes in a PDIP (N) package with 16 pins. This controller is reliable and versatile. It is ideal for various applications.

The UC3846N offers efficiency and precision. Key features include automatic feedforward compensation and current limit per pulse. The controller has an automatic symmetry correction for push-pull converters. This improves converter performance. The controller responds well to load changes. It can also work in parallel for modular systems.

Features include a differential current sense amplifier and double pulse suppression. Totem pole outputs have a peak of 500 mA. A band gap reference is accurate to ±1%. The controller also has an undervoltage lockout. Soft start and a shutdown terminal are included. Operation is up to 500 kHz.

Features UC3846N Texas Instruments

• Automatic Compensation: Adapts to voltage changes.
• Current limit: Prevents damage from excessive current.
• Symmetry correction: Balances converters.
• Quick response: Stable against load changes.
• Parallel Working: Suitable for large systems.
• Current Sense Amplifier: Measure current accurately.
• No Double Pulses: Maintains signal integrity.
• Powerful Outputs: 500 mA per totem pole.
• Precise Reference: Band gap with ±1% accuracy.
• Blocks at Low Voltage: Protects the system.
• Soft Start: Reduces start-up currents.
• Shutdown option: Manages energy efficiently.
• High Frequency: Operates up to 500 kHz.