LM4950 Series

3.1-W, mono, 9.6- to 16-V, analog input Class-AB audio amplifier

Catalog

3.1-W, mono, 9.6- to 16-V, analog input Class-AB audio amplifier

Part	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Package / Case	Supplier Device Package	Output Type	Features	Voltage - Supply [Min]	Voltage - Supply [Max]	Type	Max Output Power x Channels @ Load
Texas Instruments LM4950TS/NOPB	85 °C	-40 °C	Surface Mount	TO-263-10 (9 Leads + Tab)	DDPAK/TO-263-9	1-Channel (Mono) or 2-Channel (Stereo)	Depop Short-Circuit and Thermal Protection Shutdown	9.6 V	16 V	Class AB	3.1 W 7.5 W
Texas Instruments LM4950TSX/NOPB	85 °C	-40 °C	Surface Mount	TO-263-10 (9 Leads + Tab)	DDPAK/TO-263-9	1-Channel (Mono) or 2-Channel (Stereo)	Depop Short-Circuit and Thermal Protection Shutdown	9.6 V	16 V	Class AB	3.1 W 7.5 W

Catalog

3.1-W, mono, 9.6- to 16-V, analog input Class-AB audio amplifier

Key Features

• Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off TransitionsLow Current, Active-Low Shutdown ModeLow Quiescent CurrentStereo 3.1W Output, RL= 4ΩMono 7.5W BTL Output, RL= 8ΩShort Circuit ProtectionUnity-Gain StableExternal Gain Configuration CapabilityKey SpecificationsQuiescent Power Supply Current 16mA (typ)POUT(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)All trademarks are the property of their respective owners.Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off TransitionsLow Current, Active-Low Shutdown ModeLow Quiescent CurrentStereo 3.1W Output, RL= 4ΩMono 7.5W BTL Output, RL= 8ΩShort Circuit ProtectionUnity-Gain StableExternal Gain Configuration CapabilityKey SpecificationsQuiescent Power Supply Current 16mA (typ)POUT(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)All trademarks are the property of their respective owners.

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 12VDCpower 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. 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 12VDCpower 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.