Overview
The TDA7387EPAG is an AB class audio power amplifier produced by STMicroelectronics. It is specifically designed for high-end car radio applications and is packaged in the Flexiwatt 25 format. This amplifier is based on a fully complementary PNP/NPN configuration, allowing for a rail-to-rail output voltage swing without the need for bootstrap capacitors. The TDA7387EPAG is known for its high output power capability, low distortion, and low output noise, making it an ideal choice for automotive audio systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8.0 - 18 | V |
| Peak Supply Voltage (t = 50 ms) | 50 | V |
| Output Peak Current (Repetitive, 10% duty cycle at 10 Hz) | 4.5 | A |
| Output Peak Current (Non-repetitive, t = 100 µs) | 5.5 | A |
| Power Dissipation (Tcase = 70 °C) | 80 | W |
| Junction Temperature | -55 to 150 | °C |
| Operative Temperature Range | -40 to 105 | °C |
| Maximum Output Power per Channel @ 4 Ω | 41 | W |
| Voltage Gain | 25 - 27 | dB |
| Output Offset Voltage | -100 | mV |
| Input Impedance | 70 - 100 | kΩ |
Key Features
- High output power capability: up to 4 x 41 W @ 4 Ω
- Low distortion and low output noise
- Standby and mute functions
- Automute at minimum supply voltage detection
- Low external component count: internally fixed gain (26 dB), no external compensation, and no bootstrap capacitors
- Protections: output short circuit to GND, to VS, across the load; very inductive loads; overrating chip temperature with soft thermal limiter; load dump voltage; fortuitous open GND; reversed battery; ESD protection
- Separate power ground and supply voltage pins for each couple of channels to minimize cross-talk and distortion
Applications
The TDA7387EPAG is primarily designed for high-end car radio applications, where high-quality audio performance and robust reliability are essential. It is suitable for use in automotive audio systems that require high power output, low distortion, and advanced protection features.
Q & A
- What is the maximum output power of the TDA7387EPAG per channel? The maximum output power per channel is 41 W @ 4 Ω.
- What is the operating supply voltage range of the TDA7387EPAG? The operating supply voltage range is 8.0 to 18 V.
- What are the key protection features of the TDA7387EPAG? The key protection features include output short circuit protection, overrating chip temperature with soft thermal limiter, load dump voltage protection, fortuitous open GND protection, reversed battery protection, and ESD protection.
- What is the operative temperature range of the TDA7387EPAG? The operative temperature range is -40 to 105 °C.
- Does the TDA7387EPAG require external compensation or bootstrap capacitors? No, the TDA7387EPAG does not require external compensation or bootstrap capacitors due to its internally fixed gain and stable design.
- What is the input impedance of the TDA7387EPAG? The input impedance is 70 to 100 kΩ.
- What are the standby and mute functions in the TDA7387EPAG? The TDA7387EPAG features standby and mute functions to control power consumption and audio output.
- How does the TDA7387EPAG minimize cross-talk and distortion? The TDA7387EPAG minimizes cross-talk and distortion by having separate power ground and supply voltage pins for each couple of channels.
- Is the TDA7387EPAG RoHS compliant? Yes, the TDA7387EPAG is RoHS compliant and comes in an Ecopack2 package.
- What is the package type of the TDA7387EPAG? The package type is Flexiwatt 25 with formed leads.
