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