LM4881MX Boomer Dual 200 mW Headphone Amplifier with Shutdown Mode

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM4881M/NOPB LM4881M		SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT LM48 81M
LM4881MM/NOPB LM4881MM		MINI SOIC	8	1 1	260 260	Detail	Download	N/A	ZXTT Z81
LM4881MMX/NOPB LM4881MMX		MINI SOIC	8	1 1	260 260	Detail	Download	N/A	ZXTT Z81
LM4881MX/NOPB LM4881MX		SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT LM48 81M

Description

The LM4881 is a dual audio power amplifier capable of delivering 200mW of continuous average power into an 8 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 using surface mount packaging. Since the LM4881 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4881 features an externally controlled, low power consumption shutdown mode which is virtually clickless and popless, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4881 can be configured by external gain-setting resistors.

Key Specification

THD+N at 1kHz at 125mW continuous average output power into 8	0.1% (max)
THD+N at 1kHz at 75mW continuous average output power into 32	0.02% (typ)
Output power at 10% THD+N at 1kHz into 8	300mW (typ)
Shutdown Current	0.7µA (typ)
Supply voltage range	2.7V to 5.5V

Applications

Diagrams

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

source£ºShenZhen henlito electronic co.,ltd.

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