Pinout Diagram: TDA2003, TDA7297, TDA7377, TDA7379, TDA7388
TDA2003 Pinout Diagram
Here, you can see the Pinout Diagram of IC TDA2003
The TDA2003 is a versatile Class AB audio amplifier IC designed for low-frequency audio amplification in both mono and stereo configurations. It is commonly used in automotive audio systems, portable radios, and DIY audio projects due to its compact size and reliable performance. It can deliver up to 10W into a 2Ω speaker and approximately 6W into a 4Ω speaker when powered with a 12V supply. It functions within a supply voltage range of 8V to 18V, with a maximum supply voltage of 28V.
The TDA2003 has 5 pins as described below,
- Pin 1: Non-inverting input (+)
- Pin 2: Inverting input (−)
- Pin 3: Ground (GND)
- Pin 4: Output
- Pin 5: Supply voltage (Vcc)
TDA7297 Pinout Diagram
Here, you can see the Pinout Diagram of IC TDA7297
The TDA7297 is a dual-channel Class-AB audio amplifier IC designed for compact stereo audio applications such as televisions, radios, and DIY speaker systems. It can deliver up to 15W per channel into an 8Ω load, providing a total output of 30W. It can operate within a supply voltage range of 6V to 18V, with a recommended operating voltage of 12V for optimal performance.
The TDA7297 has 15 pins as described below,
- Pins 1 & 2 (OUT1+ & OUT1−): Non-inverting and inverting outputs for channel 1.
- Pins 3 & 13 (VCC): Power supply voltage inputs.
- Pins 4 (IN1): Audio input for channel 1.
- Pins 5, 10 & 11: No connection (N.C.).
- Pin 6 (MUTE): Mute control input.
- Pin 7 (ST-BY): Standby control input.
- Pin 8 (PW-GND): Power ground.
- Pin 9 (S-GND): Signal ground.
- Pins 12 (IN2): Audio input for channel 2.
- Pins 14 & 15 (OUT2+ & OUT2−): Non-inverting and inverting outputs for channel 2.
TDA7377 Pinout Diagram
Here, you can see the Pinout Diagram of IC TDA7377
The TDA7377 is a versatile Class‑AB audio amplifier IC, capable of operating either in stereo (dual-bridge) or quad (single-ended) configurations. It also comes in a Multiwatt‑15 IC package,
- Pin 1 (OUT1) and Pin 2 (OUT2) are the positive and negative outputs, respectively, for channel 1.
- Pin 3 (VCC) is the primary positive supply voltage pin.
- Pin 4 (IN1) and Pin 5 (IN2) serve as the inputs for channels 1 and 2.
- Pin 6 (SVR) is the supply voltage rejection pin, used for decoupling and noise suppression.
- Pin 7 (ST-BY) provides a CMOS‑compatible standby control with silent on/off operation.
- Pin 8 (PW‑GND) is the power ground, while Pin 9 (S‑GND) is the signal ground.
- Pin 10 (DIAG) is the diagnostic output, used to detect clipping, short-circuits, thermal shutdowns, or other faults.
- Pin 11 (IN4) and Pin 12 (IN3) are the inputs for the additional two channels when operating in quad mode.
- Pin 13 (VCC) is a second positive supply pin, tied together with pin 3 for power.
- Pin 14 (OUT4) and Pin 15 (OUT3) are the outputs for the extra channels (channel 4 and channel 3, respectively)
.
TDA7379 Pinout Diagram
Here, you can see the Pinout Diagram of IC TDA7379
As you can see the TDA7377 and TDA7379 has the same 15-pin Multiwatt package pinout. Both ICs support stereo BTL or quad single-ended configurations and include mute/standby, diagnostics, and protection features. However, TDA7379 offers slightly better performance specs and efficiency, while TDA7377 is more commonly used in basic setups.
TDA7388 Pinout Diagram
Here, you can see the Pinout Diagram of IC TDA7388
The TDA7388 is a quad bridge Class‑AB audio amplifier IC housed in a Flexiwatt‑25 package (25 pins). It is widely used in car audio systems and other multi-channel audio applications due to its high output capability and compact design.
Function of each pin is described below,
- Pin 1 (TAB): Heat-sink tab, must be connected to ground.
- Pin 2: P‑GND2 (Power ground for Channel 2).
- Pin 3: OUT2− (Inverting output of Channel 2).
- Pin 4: ST‑BY (Standby control).
- Pin 5: OUT2+ (Non‑inverting output of Channel 2).
- Pin 6 (VCC): Main supply voltage input.
- Pin 7: OUT1− (Inverting output of Channel 1).
- Pin 8: P‑GND1 (Power ground for Channel 1).
- Pin 9: OUT1+ (Non‑inverting output of Channel 1).
- Pin 10 (SVR): Supply Voltage Rejection—used for decoupling to suppress noise.
- Pins 11 & 12: Channel 1 & 2 inputs (IN1, IN2).
- Pin 13 (S‑GND): Signal ground reference.
- Pins 14 & 15: Channel 4 & 3 inputs (IN4, IN3).
- Pin 16: AC‑GND (AC ground).
- Pin 17: OUT3+ (Non‑inverting output of Channel 3).
- Pin 18: P‑GND3 (Power ground for Channel 3).
- Pin 19: OUT3− (Inverting output of Channel 3).
- Pin 20 (VCC): Secondary supply voltage pin (same as pin 6).
- Pin 21: OUT4+(Non‑inverting output of Channel 4
- Pin 22 (MUTE),
- Pin 23: OUT4−(Inverting output of Channel 4)
- Pin 24 (P‑GND4): Outputs and power ground for Channel 4 along with mute control.
- Pin 25 (HSD): No connection—reserved (Heat-Sense or HSD)
Read Also: