Specification	LM4929MMX/NOPB

Features	Shutdown, Thermal Protection
Max Output Power x Channels @ Load	16 Ohm, 80 mW
Max Output Power x Channels @ Load [custom]	2
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Headphones, 2-Channel (Stereo)
Package / Case	10-MSOP, 10-TFSOP
Package / Case [x]	3 mm
Package / Case [x]	0.118 in
Supplier Device Package	10-VSSOP
Type	Class AB
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V

LM4929 Series

40-mW, mono, analog input headphone amplifier

Part	Features	Max Output Power x Channels @ Load	Max Output Power x Channels @ Load [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Type	Output Type	Mounting Type	Package / Case	Package / Case [x]	Package / Case [x]	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplied Contents	Utilized IC / Part	Board Type	Amplifier Type
Texas Instruments LM4929MM/NOPB	Shutdown Thermal Protection	16 Ohm 80 mW	2	85 °C	-40 °C	10-VSSOP	Class AB	Headphones 2-Channel (Stereo)	Surface Mount	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	2 V
Texas Instruments LM4929MMBD		16 Ohm 80 mW	2					Headphones 2-Channel (Stereo)					5.5 V	2 V	Board(s)	LM4929	Fully Populated	Class AB
Texas Instruments LM4929MMX/NOPB	Shutdown Thermal Protection	16 Ohm 80 mW	2	85 °C	-40 °C	10-VSSOP	Class AB	Headphones 2-Channel (Stereo)	Surface Mount	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	2 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	3500	$ 1.12
		7000	$ 1.08
Texas Instruments	LARGE T&R	1	$ 1.84
		100	$ 1.52
		250	$ 1.09
		1000	$ 0.82

Description

General part information

LM4929 Series

The LM4929 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 LM4929 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The LM4929 is configured for OCL (Output Capacitor-Less) outputs, operating with no DC blocking capacitors on the outputs.

The LM4929 features a low-power consumption shutdown mode with a faster turn on time. Additionally, the LM4929 features an internal thermal shutdown protection mechanism.

Documents

Technical documentation and resources

LM4929 Stereo 40mW Low Noise Headphone Amplifier with OCL Output datasheet (Rev. B)

Data sheet