LA4425A Datasheet, PDF (3/8 Pages) Sanyo Semicon Device – 5 W Power Amplifier with Very Few External Parts for Car Radio and Car Stereo

LA4425A
IC Usage Notes
Maximum ratings
If the IC is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum ratings to
be exceeded, thereby leading to a breakdown.
Printed circuit board
When drawing the printed circuit pattern, refer to the sample printed circuit pattern. Be careful not to form a feedback loop
between input and output.
Comparison of External Components
External Parts
Output coupling capacitor
Input coupling capacitor
Bootstrap capacitor
Feedback capacitor
Filter capacitor
Phase compensation capacitor
Oscillation correction polyester
film capacitor
Oscillation correction resistor
Total
Our ICs now in use
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8 pcs.
Note: The power supply capacitor is not counted as a power IC part.
LA4425A
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2 pcs.
Sample Printed Circuit Pattern
GND
– ^{CVCC = 1000 µF}
+
V_CC
–+
OUT Co = 1000 µF
LA4425A
+–
IN
Ci = 2.2 µF GND
Cu-foiled side 78.0 × 29.0 mm²
I_CCO – V_CC
V_N – V_CC
Supply voltage, V_CC – V
Supply voltage, V_CC – V
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