LM4880 Texas instruments

LM4880

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LM4880

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Описание

The LM4880 is a dual audio power amplifier capable of delivering typically 250mW per channel of continuous average power to an 8Ω load with 0.1% THD+N using 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 LM4880 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The LM4880 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4880 can be configured by external gain-setting resistors.

No Bootstrap Capacitors or Snubber Circuits are Necessary
Small Outline (SOIC) and PDIP Packaging
Unity-Gain Stable
External Gain Configuration Capability

Key Specifications

THD+N at 1kHz at 200mW Continuous Average Output Power into 8Ω: 0.1% (max)
THD+N at 1kHz at 85mW Continuous Average Output Power into 32Ω: 0.1% (typ)
Output Power at 10% THD+N at 1kHz into 8Ω 325 mW (typ)
Shutdown Current 0.7 µA (typ)
2.7V to 5.5V Supply Voltage Range

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Output power (W)	0.11
Analog supply (min) (V)	2.7
Analog supply (max) (V)	5.5
Load (min) (Ω)	8
PSRR (dB)	50
Rating	Catalog
Operating temperature range (°C)	-40 to 85
Headphone channels	Stereo
Volume control	No
Shutdown current (ISD) (µA)	0.7
Architecture	Class-AB
Iq per channel (typ) (mA)	1.8