1FEATURES
23• Pop & Click Circuitry Eliminates Noise During
Turn-On and Turn-Off Transitions
• Low Current, Active-Low Shutdown Mode
• Low Quiescent Current
• Stereo 3.1W Output, R L = 4Ω
• Mono 7.5W BTL Output, RL = 8Ω
• Short Circuit Protection
• Unity-Gain Stable
• External Gain Configuration Capability

KEY SPECIFICATIONS
• Quiescent Power Supply Current 16mA (typ)
• P OUT (SE)
– VDD = 12V, RL = 4Ω, 1% THD+N: 3.1W (typ)
• POUT (BTL)
– VDD = 12V, RL = 8Ω, 10% THD+N: 7.5W (typ)
• Shutdown Current 40μA (typ)

APPLICATIONS
• Flat Panel Monitors
• Flat Panel TVs
• Computer Sound Cards

DESCRIPTION
The LM4950 is a dual audio power amplifier primarily
designed for demanding applications in flat panel
monitors and TV's. It is capable of delivering 3.1
watts per channel to a 4Ω single-ended load with less
than 1% THD+N or 7.5 watts mono BTL to an 8Ω
load, with less than 10% THD+N from a 12VDC power
supply.
Boomer audio power amplifiers were designed
specifically to provide high quality output power with a
minimal amount of external components. The
LM4950 does not require bootstrap capacitors or
snubber circuits. Therefore, it is ideally suited for
display applications requiring high power and minimal
size.
The LM4950 features a low-power consumption
active-low shutdown mode. Additionally, the LM4950
features an internal thermal shutdown protection
mechanism along with short circuit protection.
The LM4950 contains advanced pop & click circuitry
that eliminates noises which would otherwise occur
during turn-on and turn-off transitions.
The LM4950 is a unity-gain stable and can be
configured by external gain-setting resistors.