Overview
The TDA7377 is a class AB car radio amplifier produced by STMicroelectronics. This amplifier is designed to operate in either a DUAL BRIDGE or a QUAD SINGLE ENDED configuration, offering flexibility and high power performance. The output stage features a fully complementary structure and internally fixed gain, ensuring maximum power output with a minimal component count. The onboard clip detector simplifies gain compression, and the fault diagnostics feature helps in identifying issues during car radio set installation and wiring.
Key Specifications
| Parameter | Description |
|---|---|
| Output Power | Up to 2 x 35W (VCC=14.4V, f=1kHz, RL=4Ω) |
| Power Supply | DC 9-15V / 50-100W |
| Channel Type | 2.0 Stereo |
| Response Frequency | 20Hz - 20kHz |
| Compatible Speakers | 4-8 Ohm, 20-120W, 3''-10'' bookshelf speakers, floor speakers |
| Operating Voltage | 8-18V |
| Static Drain Current | 150mA (maximum) |
| Output Offset Voltage | 150mV (maximum) |
| Maximum Power Dissipation | 36W |
| Distortion Rate | Less than 0.3% |
| Supply Voltage Rejection | 50dB (minimum at Rg = 0; f = 300Hz, Tamb = 25°C) |
| Junction Temperature Range | -40°C to +150°C |
| Package | ZIP-15 |
Key Features
- Fully complementary output stage and internally fixed gain for high power performance with minimal external components.
- Onboard clip detector for simplified gain compression.
- Fault diagnostics for detecting issues during car radio set installation and wiring.
- CMOS compatible stand-by function with no audible pop during stand-by operations.
- Output AC/DC short circuit protection, soft short at turn-on protection, and thermal shutdown.
- Load dump voltage surge protection, reversed battery protection, and ESD protection.
- Rail-to-rail output swing and absolute stability without any external compensation.
- Silent turn on/off and protection against highly inductive speaker loads and fortuitous open ground conditions.
Applications
The TDA7377 is primarily designed for use in car radio systems, offering high power output and robust protection features. It is suitable for various car audio configurations, including dual bridge and quad single-ended setups. The amplifier's flexibility and reliability make it an ideal choice for automotive audio systems where high-quality sound and durability are essential.
Q & A
- What is the TDA7377?
The TDA7377 is a class AB car radio amplifier that can operate in either a DUAL BRIDGE or a QUAD SINGLE ENDED configuration.
- Who is the manufacturer of the TDA7377?
The TDA7377 is manufactured by STMicroelectronics.
- What is the maximum output power of the TDA7377?
The TDA7377 can deliver up to 2 x 35W of output power at VCC=14.4V, f=1kHz, RL=4Ω.
- What are the key protection features of the TDA7377?
The TDA7377 includes protection features such as load dump voltage surge, reversed battery, output DC/AC short circuit, thermal shutdown, and ESD protection.
- What is the operating voltage range of the TDA7377?
The operating voltage range of the TDA7377 is from 8V to 18V.
- What type of package does the TDA7377 come in?
The TDA7377 comes in a ZIP-15 package.
- Does the TDA7377 have a stand-by function?
Yes, the TDA7377 has a CMOS compatible stand-by function with no audible pop during stand-by operations.
- What is the junction temperature range of the TDA7377?
The junction temperature range of the TDA7377 is from -40°C to +150°C.
- What are the compatible speaker types for the TDA7377?
The TDA7377 is compatible with 4-8 Ohm speakers, ranging from 20-120W, including 3''-10'' bookshelf speakers and floor speakers.
- Does the TDA7377 have fault diagnostics?
Yes, the TDA7377 has fault diagnostics to detect issues during car radio set installation and wiring.
