Texas Instruments LM4940
The LM4940 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TVs. It is capable of delivering 6 watts per channel to a 4Ω load with less than 10% THD+N while operating on a 14.4VDC power supply. The LM4940 does not require bootstrap capacitors or snubber circuits.| Part No. | LM4940 |
|---|---|
| Datasheet | LM4940 Download |
| Manufacturer |  Texas Instruments |
| Description | 6W Stereo Audio Power Amplifier |
| Buy | Stock & Price |
FEATURES
1●23 Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
● Low Current, Active-Low Shutdown Mode
● Low Quiescent Current
● Stereo 6W Output, RL = 4Ω
● Short Circuit Protection
● Unity-Gain Stable
● External Gain Configuration Capability
APPLICATIONS
● Flat Panel Monitors● Flat Panel TVs
● Computer Sound Cards KEY SPECIFICATIONS
● Quiscent Power Supply Current: 40mA (max) (SE)
● POUT VDD = 14.4V, RL = 4Ω, 10% THD+N: 6 W (typ)
● Shutdown Current: 40µA (typ)
DESCRIPTION
Boomer™ audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Therefore, it is ideally suited for display applications requiring high power and minimal size. The LM4940 features a low-power consumption active-low shutdown mode. Additionally, the LM4940 features an internal thermal shutdown protection mechanism along with short circuit protection. The LM4940 contains advanced pop and click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.
