If you are looking for a small audio amplifier with medium power output? This BA5406 circuit can deliver 5 watts stereo output. This IC works on 5V DC to 15V DC single supply, so you can build a portable audio device or car audio system. In this article I’m sharing the BA5406 Amplifier Circuit and its connection details.
What is BA5406 IC?
- 5 Watt stereo audio amplifier IC
- Working Voltage between 5V and 15V DC.
- Package Type is 12-pin SIP (Single Inline Package).
- Load Impedance is optimized for 3 ohms loads.
BA5406 Amplifier Circuit Diagram
Components Required
| Sl No | Component | Value | Quantity |
|---|---|---|---|
| 1 | IC | BA5406 | 1 |
| 2 | Resistor R1 | 2.2Ω (2R2) | 1 |
| 3 | Resistor R2 | 2.2Ω (2R2) | 1 |
| 4 | Resistor RF1 | 680Ω | 1 |
| 5 | Resistor RF2 | 680Ω | 1 |
| 6 | Capacitor C1 | 150nF | 1 |
| 7 | Capacitor C2 | 47µF | 1 |
| 8 | Capacitor C3 | 2200µF | 1 |
| 9 | Capacitor C4 | 1000µF | 1 |
| 10 | Capacitor CB4 | 100nF | 1 |
| 11 | Capacitor C5 | 47µF | 1 |
| 12 | Capacitor C6 | 47µF | 1 |
| 13 | Capacitor C7 | 150nF | 1 |
| 14 | Capacitor C8 | 47µF | 1 |
| 15 | Capacitor C9 | 2200µF | 1 |
| 16 | Capacitor C10 | 47µF | 1 |
| 17 | Capacitor C11 | 100µF | 1 |
| 18 | Input Capacitor CIN1 | 2.2µF | 1 |
| 19 | Input Capacitor CIN2 | 2.2µF | 1 |
| 20 | Speaker | 4Ω–8Ω Speaker | 2 |
| 21 | Power Supply | 5V–15V DC | 1 |
Output Wattage and Speaker Impedance
- If the speaker impedance is 3 ohms and input DC supply voltage is 12V then the output wattage in each speaker is about 5W.
- If the supply voltage is 9V and impedances is 3 ohms the out put watts will be 3-4 Wttas
Features of BA5406 Amplifier
- Low noise.
- Simple design
- Easy mounting of IC and space reduction in PCB.
Applications
- Portable audio device.
- Car audio amplifier.
- Television audio amplifier stage.
