TDA7388 4 x 45 W Audio Amplifier Op Amp

Description

TDA7388 4 x 45 W Audio Amplifier Op Amp TDA7388 is a class AB radio amplifier designed for car radio applications. It allows the rail to rail output swing for fully complementary PNP/NPN output configuration. And it does not require any bootstrap capacitors. Hence, it is an extremely reduced boundary component that makes a compact set. TDA7388 belongs to package Flexiwatt25 and is a quad bridge amplifier. Therefore, it has four output channels where four speakers can be connected. It has a high output capability with low noise and is a 4-channel amplifier with 25 pins. TDA7388 Pinout Configuration Pin No Pin Name Pin Function 1 TAB Connect to ground 2 P-GND2 Power ground of Channel 2 3 OUT2- Inverting Output of Channel 2 4 ST-BY Stand-by 5 OUT2+ Non-Inverting Output of Channel 2 6 VCC Supply Voltage 7 OUT1- Inverting Output of Channel 1 8 P-GND1 Power ground of Channel 1 9 OUT1+ Non-Inverting Output of Channel 1 10 SVR Supply Voltage Rejection 11 IN1 Input of Channel 1 12 IN2 Input of Channel 2 13 S-GND Signal ground 14 IN4 Input of Channel 4 15 IN3 Input of Channel 3 16 AC-GND AC ground 17 OUT3+ Non-Inverting Output of Channel 3 18 P-GND3 Power ground of Channel 3 19 OUT3- Inverting Output of Channel 3 20 VCC Supply Voltage 21 OUT4+ Non-Inverting Output of Channel 4 22 MUTE Mute 23 OUT4- Inverting Output of Channel 4 24 P-GND4 Power GND of Channel 4 25 HSD No Connection Features & Specifications High output power (4×45 W / 4 Ω max and 4×26 W / 4 Ω @14.4 V, 1 kHz, 10%) Low output noise Standby function Mute function Low distortion Automate at minimum supply voltage detection Low external component count Operating supply voltage V S : 18 V DC supply voltage V S(DC) : 28 V Peak supply voltage (t=50 ms) V PK : 50 V Output peak current I O : Repetitive (duty cycle 10% @ f=10 Hz): 4.5 A Non-repetitive (t=100 μs): 5.5 A Power dissipation P d : 80 W Quiescent current I Q : 190 mA (typ) Output power P O : 26 W (typ) (V S = 14.4 V THD = 10%) Maximum power output P max : 41 W (@ V S = 14.4 V) 45W (@ V S = 15.2 V) THD: 0.04% (@P O = 4 W) TDA7388 Equivalents TDA7851F, TDA7561, TDA7387EP, TB2941HQ Note: Complete technical details about this IC can be found in the TDA7388 datasheet given at the end of the page. Standard Test and Application Circuit of TDA7388 Amplifier The below figure shows how to use TDA7388. It is a four-channel amplifier. Hence, we can connect four speakers with this amplifier as shown in the figure below. SVR capacitor is used for ripple rejection and governs turn ON/OFF sequence. To achieve this application, the minimum recommended value of an SVR capacitor is 10 μF. SVR capacitors are connected at pin 10. TDA7388 has two modes; Standby and mute. These modes can be directly used by straight connection to V s . To drive Muting and Standby pin, conventional/low-power transistors can be employed in absence of true CMOS ports and microprocessors. To smooth down the transitions and prevent audio noise, RC cells are used in the circuit. Pin 22 is for mute mode. In normal conditions, a 10 μA current will flow through this pin. Hence, we can connect a maximum of 70 kΩ muting-series resistance (R 2 ). This resistance is sufficiently high to permit a muting capacitor reasonably small about 1 μF. If this resistance is more than recommended value, the voltage across pin 22 is more than the 1.5 V threshold value that fails to turn OFF when the mute line is down. In order to achieve the pop-free transition, the time constant is assigned to a stand-by pin that will be slower than 2.5 V/ms. Applications In-Car Radios Can be used for Portable Speakers, Portable DVD Players, Game Machines Any possible Quad Bridge amplifier-based project. 2D Model and Dimensions If you are designing a PCB or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions. MIN TYP MAX A 4.45 4.50 4.65 B 1.80 1.90 2.00 C 1.40 D 0.75 0.90 1.05 E 0.37 0.39 0.42 F (1) 0.57 G 0.80 1.00 1.20 G1 23.75 24.00 24.25 H (2) 28.90 29.23 29.30 H1 17.00 H2 12.80 H3 0.80 L (2) 22.07 22.47 22.87 L1 18.57 18.97 19.37 L2 (2) 15.50 15.70 15.90 L3 7.70 7.85 7.95 L4 5.00 L5 3.50 M 3.70 4.00 4.30 M1 3.60 4.00 4.40 N 2.20 O 2.00 R 1.70 R1 0.50 R2 0.30 R3 1.25 R4 0.50 V 5˚ V1 3˚ V2 20˚ V3 45˚ Component Datasheet: TDA7388 Datasheet

From the supplier's page.