1 Watt Audio Power Amplifier with Shutdown Mode The LM4860M is a power amplifier manufactured by Texas Instruments. Below are the factual details about its specifications, descriptions, and features:
### **Specifications:**
- **Type:** Audio Power Amplifier
- **Output Power:** 1.1W (typical) into an 8Ω load at 5V
- **Supply Voltage Range:** 2.0V to 5.5V
- **Quiescent Current:** 4mA (typical)
- **Total Harmonic Distortion (THD):** 0.2% (typical) at 1kHz, 1W output
- **Gain Bandwidth Product:** 3MHz (typical)
- **Package Type:** SOIC-8 (M)
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
The LM4860M is a bridge-tied load (BTL) audio power amplifier designed for low-voltage applications. It is optimized for driving speakers in portable devices such as mobile phones, PDAs, and other battery-powered audio systems. The amplifier operates from a single supply and does not require output coupling capacitors, making it suitable for space-constrained designs.
### **Features:**
- **Bridge-Tied Load (BTL) Configuration:** Eliminates the need for output coupling capacitors.
- **Low Quiescent Current:** Extends battery life in portable applications.
- **Low Shutdown Current:** <0.1µA (typical) when disabled.
- **Unity-Gain Stable:** No external compensation required.
- **Thermal Shutdown Protection:** Prevents damage from overheating.
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from power supply variations.
- **Short-Circuit Protection:** Protects the amplifier from damage.
These details are sourced from the manufacturer's official documentation.
