KA7500 power supply controller

The KA7500 is a versatile power supply controller designed for use in various DC-DC converter and switching power supply applications. It integrates essential functions such as pulse-width modulation (PWM) control, voltage regulation, and protection features to ensure stable and efficient power conversion. The KA7500 is suitable for designing high-performance power supplies with adjustable output voltages and current regulation.

Key Features:

• Integrated PWM control for efficient power regulation
• Adjustable output voltage with precise control
• Built-in voltage reference for stable operation
• Error amplifier for accurate feedback and regulation
• High-speed switching capability with minimal external components
• Built-in protection features including thermal shutdown, overcurrent protection, and undervoltage lockout

Technical Specifications:

• Input Voltage Range: 8V to 40V
• Output Voltage Range: Adjustable, based on external components
• Switching Frequency: Typically up to 100 kHz
• Voltage Reference: 2.5V ±1% (typical)
• Error Amplifier Gain: Adjustable
• Thermal Shutdown: Integrated
• Overcurrent Protection: Integrated
• Undervoltage Lockout: Integrated
• Package Type: Available in DIP-8 and surface-mount packages

Applications:

• DC-DC converters (buck, boost, and flyback topologies)
• Switching power supplies for electronic devices
• Battery chargers and power management systems
• High-efficiency power converters and inverters
• Industrial and consumer electronics requiring stable power

Usage:

1. Connect the input voltage to the KA7500, ensuring it is within the specified range.
2. Configure the output voltage and other parameters using external resistors and components as described in the datasheet.
3. Implement the switching frequency and other settings according to your application requirements.
4. Connect the load to the output and ensure proper heat dissipation and thermal management.

Caution:

• Ensure that the input voltage and output settings are within the specified limits to prevent damage to the controller.
• Design and place external components (e.g., inductors, capacitors) carefully to achieve optimal performance and stability.
• Follow the datasheet recommendations for thermal management and circuit design to maintain reliable operation.

Datasheet:
For detailed technical specifications, refer to the KA7500 Datasheet.