Features Active-high shutdown mode LLP, MSOP, and SO surface mount packaging "Click and Pop" suppression circuitry Low shutdown current No bootstrap capacitors required Unity-gain stable Description The LM4810 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16 load with 0.1% (THD+N) from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4810 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The unity-gain stable LM4810 can be configured by external gain-setting resistors. The LM4810 features an externally controlled, active-high, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. Key Specification THD+N at 1kHz, 105mW continuous average power into 16 0.1% (typ) THD+N at 1kHz, 70mW continuous average power into 32 0.1% (typ) Shutdown Current 0.4µA (typ) Applications Cellular Phones Personal Computers Microphone Preamplifier PDA's

Also Recommended LM4911▲ External Gain-setting Capability, Ultra Low Current Shutdown And Mute Mode

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance click for larger image

Datasheets

Title		Size	Date	Other Language
	LM4810 LM4810 Dual 105mW Headphone Amplifier with Active-High Shutdown Mode	928 Kbytes	21-Nov-02	日本語

Other Technical Documents

Title		Type	Date
	Headphone Amplifiers: Choose the Right Topology for Your Application	External Article	2008-02-13

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM4810MM/NOPB LM4810MM RoHS Status	MINI SOIC	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 3096	$0.25 each at 1K+ pcs	reel of 1000
LM4810MMX/NOPB LM4810MMX RoHS Status	MINI SOIC	Full production Lead Time: 8 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.25 each at 1K+ pcs	reel of 3500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM4810LDBD	LM4811MMBD	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM4810LDX	LM4811LD	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM4810MA	LM4911MM	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM4810MAX	LM4911MM	NATIONAL SEMICONDUCTOR	16 Nov 2008

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM4810.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM4810 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM4810MM/NOPB LM4810MM	29.851 30.002	MINI SOIC	8	1 1	260 260	Detail	Download	N/A	ZXTT G10
LM4810MMX/NOPB LM4810MMX	29.851 30.002	MINI SOIC	8	1 1	260 260	Detail	Download	N/A	ZXTT G10

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM4810.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM4810 is located at RoHS Status.

CAD Symbols and Models Download LM4810 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM4810MM	CS065	2	47473	43	0	5527000	1	1568301341
LM4810MMX	CS065	2	47473	43	0	5527000	1	1568301341

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM4810.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM4810 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM4810LDBD	LM4811MMBD	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM4810LDX	LM4811LD	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM4810MA	LM4911MM	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM4810MAX	LM4911MM	NATIONAL SEMICONDUCTOR	16 Nov 2008