Practical Tips for Non-Direct Replacement
Double-check pin numbering to avoid miswiring.
Adjust external PCB components to suit the replacement IC’s characteristics.
Match power supply voltage; if it differs, adjust accordingly.
Measure IC’s static working current post-replacement for normal values; significant differences may indicate self-oscillation.
Match input and output impedance to the original PCB circuit.
Maintain tidy external leads and avoid crossings to prevent high-frequency oscillation.