Rangkaian TDA1554 Audio Amplifier 2 x 22W BTL

Audio Amplifier Based TDA1554 IC

This audio amplifier circuit works up to 2 x 22Watt with main power IC TDA1554. The circuit has only very few components and works best with a 4 Ohm speaker.

IC TDA1554 must be connected to a heat sink. A computer cabinet fan can also be used in addition. Any way better the cooling better the performance.The circuit roughly draws 6A current at 12 V at full volume.So the power supply must be any thing more than 6A.Up to 18 V can be used

Skema rangkaian TDA1554 audio amplifier
2 x 22W BTL

List Componet

• R1 39K 1/4 Watt Resistor
• C1,C2 10uf/25V Electrolytic Capacitor
• C3 100uf/25V Electrolytic Capacitor
• C4 47uf /25V Electrolytic Capacitor
• C5 0.1uf /25V Ceramic Capacitor
• C6 2200uf/25V Electrolytic Capacitor
• U1 TDA1554 Two Channel Audio Amp Chip
• MIS Heatsink For U1

TDA1554 IC

Rangkaian TDA 1910 Audio Amplifier

This circuit is a simple audio amplifier based on TDA1910 IC. This circuit will deliver 10W power output if used 8 ohm loudspeaker and powered with 24V DC supply.

Skema rangkaian TDA 1910 audio amplifier

TDA 1910 IC Pin

Note

• Use 18-24V DC for powering the circuit.
• A proper heat sink is necessary for the IC.

The TDA 1910 IC is a monolithic integrated circuit inmultiwatt package, intended for use in Hi-Fi audio power applications, as high quality TV sets. The TDA 1910 meets the DIN 45500 (d = 0.5%) guaranteed output power of 10W when used at 24V/4W. At 24V/8W the output power is 7W min.

Maximun ratings TDA 1910 IC

• Supply voltage 30 V
• Output peak current (non repetitive) 3.5 A
• Io Output peak current (repetitive) 3.0 A
• Input voltage 0 to + Vs V
• Differential input voltage ± 7 V
• Power dissipation at Tcase = 90°C 2 0W
• Storage and junction temperature -40 to 150 °

Rangkaian 20 Watt Audio Amplifier TDA7240

Here is an audio amplifier based on the TDA7240 IC from ST Microelectronics. The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications

Skema rangkaian 20 watt audio amplifier TDA7240

TDA7240 IC Pin

This circuit of audio amplifier based IC TDA7240 can deliver 20 watts of audio output power into a 4ohm load. The IC has minimum external parts count and is available in the 7 pin compact Heptawatt package. The IC also has a lot of good features like loud speaker protection, short circuit protection, low noise, low distortion etc. The circuit can be operated from a 12V DC single power supply and this makes it very useful in car audio application

Note:

• Use 4 ohm, 20W speaker.
• S1 is the standby switch and S2 is the ON/OFF switch.
• LED D2 is a power ON indicator.
• give good cooling at TDA7240 IC
  

TDA7482 Mono Amplifier 25Watt

Rangkaian Amplifier Mono 25Watt

The TDA7482 is an audio class-D amplifier assembled in Multiwatt15 package specially designed for high efficiency applications mainly for TV and Home Stereo sets. Since this chip has only mono channel, you need two pieces of this circuit for stereo application. The power supply voltage is flexible, accept (+ -)10V to (+ -)25V. This circuit needs a split supply (symmetric power supply).

Skema Rangkaian TDA7482 Mono Amplifier 25Watt

TDA7482 for the main technical parameters:

• 25 W rated output power. Working conditions are: RL = 4 ~ 8 Ω, THD ≤ 10%. In fact, in accordance with the recommendation of the parameters, when RL = 8 Ω, P out = 1 W at its THD is only 0.1 percent.
• has a high output efficiency. When Vcc = ± 21V, RL = 8 Ω, P out = 18 W, the efficiency of 78 percent, so only a small work of the radiator, or even do not have to be.
• wide operating voltage range. Recommended for ± 10V ~ ± 25V, a car battery for power supply.
• are equipped with overcurrent protection devices, when RL = 0 Ω at the threshold for action to protect 3.5 A ~ 5A.
• are equipped with over-voltage protection devices, the threshold for the protection of 50 V.
• overheated overload, overheated temperature close to 150 ℃.
• ST-BY and MUTE functions.
• recommended the carrier frequency PWM operating frequency is 100 kHz ~ 200kHz.
• input noise (20 Hz ~ 20kHz) for 7 μ F ~ 12 μ F.
• input impedance for the 30 k Ω.

IC TDA7482 Pinning

TDA7482 ABSOLUTE MAXIMUM RATINGS

• DC Supply Voltage ±28 V
• Power Dissipation Tcase = 70°C 35 W
• Tj Storage and Junction Temperature –40 to 150 °C
• Maximum Voltage Across RF (pin6) 8 V
• Operating Temperature Range 0 to 70 °C
• Max ESD on Pins ±1.2 KV