Details

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BUY TDA7384A https://www.utsource.net/itm/p/1274878.html
4 x 35W Quad Bridge Car Radio Amplifier

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Supply Voltage	Vcc	4.5	12	26	V	Operating range for the amplifier
Quiescent Current	Iq	-	20	-	mA	Typical value at Vcc = 12V
Output Power (8Ω)	Pout	-	1.5	-	W	Continuous average power per channel at 1kHz, THD = 10%
Output Power (4Ω)	Pout	-	2.5	-	W	Continuous average power per channel at 1kHz, THD = 10%
Total Harmonic Distortion (THD)	THD	-	0.5	-	%	At 1kHz, Vcc = 12V, Pout = 1W, 8Ω load
Signal-to-Noise Ratio	SNR	-	90	-	dB	A-weighted, Vcc = 12V, 1kHz
Input Sensitivity	Vin	200	300	400	mV	For 1W output at 8Ω, Vcc = 12V
Input Impedance	Zin	-	47	-	kΩ	Differential input impedance
PSRR (Power Supply Rejection Ratio)	PSRR	-	60	-	dB	At 1kHz, Vcc = 12V
Thermal Shutdown Temperature	TSD	-	150	-	°C	Typical value
Operating Temperature Range	Toper	-40	-	85	°C	Storage and operating temperature range

Instructions for Using TDA7384A

1. Supply Voltage:

   • Ensure the supply voltage is within the specified range (4.5V to 26V). The typical operating voltage is 12V.

2. Quiescent Current:

   • The quiescent current is typically 20mA at 12V. This should be considered when designing the power supply.

3. Output Power:

   • The TDA7384A can deliver up to 1.5W into an 8Ω load and 2.5W into a 4Ω load at 1kHz with a THD of 10%.

4. Total Harmonic Distortion (THD):

   • The THD is typically 0.5% at 1kHz with a 1W output into an 8Ω load.

5. Signal-to-Noise Ratio (SNR):

   • The SNR is typically 90dB, which is measured as A-weighted at 1kHz.

6. Input Sensitivity:

   • The input sensitivity is between 200mV and 400mV for a 1W output into an 8Ω load at 12V.

7. Input Impedance:

   • The differential input impedance is typically 47kΩ.

8. PSRR (Power Supply Rejection Ratio):

   • The PSRR is typically 60dB at 1kHz, indicating good rejection of power supply noise.

9. Thermal Shutdown:

   • The device will shut down if the temperature exceeds 150°C to prevent damage.

10. Operating Temperature Range:

    • The operating temperature range is from -40°C to 85°C. Ensure the ambient temperature does not exceed these limits.

11. Mounting and Layout:

    • Use a good heat sink to dissipate heat effectively, especially when operating at high power levels.
    • Place the TDA7384A close to the power supply and ground planes to minimize noise and improve stability.

12. Protection Circuits:

    • The TDA7384A includes thermal shutdown and short-circuit protection. However, it is recommended to add external fuses and capacitors for additional protection.

13. Capacitors:

    • Use bypass capacitors (typically 10μF and 0.1μF) between the power supply and ground to filter out high-frequency noise.

14. Output Coupling:

    • Use coupling capacitors (typically 100μF) at the output to block any DC component and protect the speakers.

By following these parameters and instructions, you can ensure optimal performance and reliability of the TDA7384A in your audio amplifier design.

(For reference only)