LM4940 Series

6-W, stereo, 10- to 16-V, analog input Class-AB audio amplifier

Catalog

6-W, stereo, 10- to 16-V, analog input Class-AB audio amplifier

Part	Package / Case	Features	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Output Type	Mounting Type	Max Output Power x Channels @ Load [x]	Max Output Power x Channels @ Load	Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Board Type	Amplifier Type	Utilized IC / Part	Supplied Contents
Texas Instruments LM4940TS/NOPB	TO-263-10 (9 Leads + Tab)	Depop Short-Circuit and Thermal Protection Shutdown	85 °C	-40 °C	DDPAK/TO-263-9	2-Channel (Stereo)	Surface Mount	2	6 W	Class AB	16 V	10 VDC
Texas Instruments LM4940TSBD/NOPB						2-Channel (Stereo)		2	6 W		16 V	10 VDC	Fully Populated	Class AB	LM4940	Board(s)
Texas Instruments LM4940TSBD						2-Channel (Stereo)		2	6 W		16 V	10 VDC	Fully Populated	Class AB	LM4940	Board(s)

Catalog

6-W, stereo, 10- to 16-V, analog input Class-AB audio amplifier

Key Features

• Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off TransitionsLow Current, Active-Low Shutdown ModeLow Quiescent CurrentStereo 6W Output, RL= 4ΩShort Circuit ProtectionUnity-Gain StableExternal Gain Configuration CapabilityKey SpecificationsQuiscent Power Supply Current: 40mA (max) (SE)POUTVDD= 14.4V, RL= 4Ω, 10% THD+N: 6 W (typ)Shutdown Current: 40µA (typ)All trademarks are the property of their respective owners.Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off TransitionsLow Current, Active-Low Shutdown ModeLow Quiescent CurrentStereo 6W Output, RL= 4ΩShort Circuit ProtectionUnity-Gain StableExternal Gain Configuration CapabilityKey SpecificationsQuiscent Power Supply Current: 40mA (max) (SE)POUTVDD= 14.4V, RL= 4Ω, 10% THD+N: 6 W (typ)Shutdown Current: 40µA (typ)All trademarks are the property of their respective owners.

Description

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 14.4VDCpower supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4940 does not require bootstrap capacitors or snubber circuits. 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. The LM4940 is a unity-gain stable and can be configured by external gain-setting resistors. 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 14.4VDCpower supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4940 does not require bootstrap capacitors or snubber circuits. 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. The LM4940 is a unity-gain stable and can be configured by external gain-setting resistors.