LM4911MM/NOPB

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Texas Instruments

40-MW, STEREO HEADPHONE AMPLIFIER WITH SELECTABLE CAPACITIVE COUPLED OR OCL OUTPUT

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LM4911MM/NOPB

Active

Texas Instruments

40-MW, STEREO HEADPHONE AMPLIFIER WITH SELECTABLE CAPACITIVE COUPLED OR OCL OUTPUT

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM4911 Series

The LM4911/LM4911Q is an stereo audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω load or 25mW per channel into a 32Ω load at 1% THD+N from a 3V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4911/LM4911Q does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. In addition, the LM4911/LM4911Q may be configured for either single-ended capacitively coupled outputs or for OCL outputs (patent pending).

The LM4911/LM4911Q features a low-power consumption shutdown mode and a power mute mode that allows for faster turn on time with less than 1mV voltage change at outputs on release. Additionally, the LM4911/LM4911Q features an internal thermal shutdown protection mechanism.

Technical Specifications

Parameters and characteristics for this part

Specification	LM4911MM/NOPB

Channels	2
Features	Mute, Shutdown, Thermal Protection
Load Impedance	16 Ohm
Maximum Output Power (per Channel)	145 mW
Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Type	2-Channel (Stereo), Headphones
Package Length	0.118 in
Package Name	10-TFSOP, 10-MSOP, 10-VSSOP
Package Width	3 mm
Type	Class AB
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	2 V

LM4911 Series

Automotive, 40-mW, stereo headphone amplifier with selectable capacitive coupled or OCL output

Part	Package Length	Package Name	Package Width	Output Type	Maximum Output Power (per Channel)	Channels	Load Impedance	Mounting Type	Features	Type	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package / Case	Qualification	Grade
Texas Instruments LM4911MM/NOPB	0.118 in	10-MSOP 10-TFSOP 10-VSSOP	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V
Texas Instruments LM4911LD/NOPB	3 mm	10-WSON	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V	10-WFDFN Exposed Pad
Texas Instruments LM4911LD/NOPB	3 mm	10-WSON	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V	10-WFDFN Exposed Pad
Texas Instruments LM4911MM/NOPB	0.118 in	10-MSOP 10-TFSOP 10-VSSOP	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V
Texas Instruments LM4911QMM/NOPB	0.118 in	10-MSOP 10-TFSOP 10-VSSOP	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	105 °C	-40 °C	5.5 V	2 V		AEC-Q100	Automotive
Texas Instruments LM4911MM	0.118 in	10-MSOP 10-TFSOP 10-VSSOP	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V
Texas Instruments LM4911MMX/NOPB	0.118 in	10-MSOP 10-TFSOP 10-VSSOP	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V
Texas Instruments LM4911LDX	3 mm	10-WSON	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	85 °C	-40 °C	5.5 V	2 V	10-WFDFN Exposed Pad
Texas Instruments LM4911QMMX/NOPB	0.118 in	10-MSOP 10-TFSOP 10-VSSOP	3 mm	2-Channel (Stereo) Headphones	145 mW	2	16 Ohm	Surface Mount	Mute Shutdown Thermal Protection	Class AB	105 °C	-40 °C	5.5 V	2 V		AEC-Q100	Automotive

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LM4911/911Q Stereo 40mW Low Noise HP Amp w/Selectable Cap Coupled or OCL Out datasheet (Rev. M)

Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)

AN-1849 An Audio Amplifier Power Supply Design (Rev. C)