8W audio amplifier The TDA1908 is an integrated circuit (IC) manufactured by STMicroelectronics (ST). Below are the factual details about its specifications, descriptions, and features:
### **Manufacturer:**
STMicroelectronics (ST)
### **Specifications:**
1. **Type:** Audio Amplifier IC
2. **Output Power:**
- 4 W (typical) into 4 Ω at 14.4 V, 10% THD
- 2 W (typical) into 8 Ω at 14.4 V, 10% THD
3. **Supply Voltage Range:** 6 V to 18 V
4. **Quiescent Current:** Typically 45 mA
5. **Total Harmonic Distortion (THD):** Typically 0.5% at 1 W, 1 kHz
6. **Operating Temperature Range:** -40°C to +85°C
7. **Package:** Multiwatt11 (11-pin vertical power package)
### **Descriptions:**
- The TDA1908 is a monolithic Class AB audio amplifier designed for car radio applications.
- It includes features such as short-circuit protection, thermal shutdown, and load dump protection.
- The IC is optimized for low distortion and noise performance in automotive environments.
### **Features:**
1. **High Output Power:** Capable of delivering up to 4 W into a 4 Ω load.
2. **Wide Supply Voltage Range:** Operates from 6 V to 18 V, making it suitable for automotive use.
3. **Protection Circuits:**
- Short-circuit protection to the ground and supply.
- Thermal shutdown to prevent overheating.
- Load dump protection for automotive voltage spikes.
4. **Low Standby Current:** Ensures minimal power consumption when idle.
5. **Mute Function:** Allows muting the amplifier when needed.
6. **Low External Component Count:** Simplifies circuit design and PCB layout.
This information is based on the manufacturer's datasheet and technical documentation.
