Texas Instruments LM48310
The LM48310 is a single supply, high efficiency, mono, 2.6W, filterless switching audio amplifier. The LM48310 features TI’s Enhanced Emissions Suppression (E2S) system, that features a unique patent-pending ultra low EMI, spread spectrum, PWM architecture, that significantly reduces RF emissions while preserving audio quality and efficiency. The E2S system improves battery life, reduces external component count, board area consumption, system cost, and simplifying design.| Part No. | LM48310 |
|---|---|
| Datasheet | LM48310 Download |
| Manufacturer |  Texas Instruments |
| Description | Audio Power Amplifier |
| Buy | Stock & Price |
FEATURES
1●2 Passes FCC Class B Radiated Emissions with 20 inches of cable
● E2S System Reduces EMI while Preserving Audio Quality and Efficiency
● Output Short Circuit Protection with AutoRecovery
● Stereo Class D Operation
● No Output Filter Required
● Internally Configured Gain (12dB)
● Synchronizable Oscillator for Multi-Channel Operation
● Low Power Shutdown Mode
● Minimum External Components
● "Click and Pop" Suppression
● Micro-Power Shutdown
● Available in Space-Saving WSON Package
APPLICATIONS
● Mobile Phones● PDAs
● Laptops KEY SPECIFICATIONS
● Efficiency at 3.6V, 400mW into 8Ω 85% (typ)
● Efficiency at 5V, 1W into 8Ω 88% (typ)
● Quiescent Power Supply Current at 5V 3.2mA
● Power Output at VDD = 5V, RL = 4Ω, THD+N ≤ 10% 2.6W (typ)
● Power Output at VDD = 5V, RL = 8Ω, THD+N ≤ 10% 1.6W (typ)
● Shutdown current0.01μA (typ)
DESCRIPTION
The LM48310 is designed to meet the demands of portable multimedia devices. Operating from a single 5V supply, the device is capable of delivering 2.6W of continuous output power to a 4Ω load with less than 10% THD+N.
