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DSBGA (YZR)

LM4674TLX/NOPB

Active
Texas Instruments

AUDIO AMPLIFIERS FILTERLESS 2.5 STERE O CLASS D AUDIO POWE

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DSBGA (YZR)

LM4674TLX/NOPB

Active
Texas Instruments

AUDIO AMPLIFIERS FILTERLESS 2.5 STERE O CLASS D AUDIO POWE

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Description

General part information

LM4674 Series

The LM4674A is a single supply, high efficiency, 2.5W/channel, filterless switching audio amplifier. A low noise PWM architecture eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design.

The LM4674A is designed to meet the demands of mobile phones and other portable communication devices. Operating from a single 5V supply, the device is capable of delivering 2.5W/channel of continuous output power to a 4Ω load with less than 10% THD+N. Flexible power supply requirements allow operation from 2.4V to 5.5V.

The LM4674A features high efficiency compared to conventional Class AB amplifiers. When driving an 8Ω speaker from a 3.6V supply, the device features 85% efficiency at PO= 500mW. Four gain options are pin selectable through the GAIN0 and GAIN1 pins.

Technical Specifications

Parameters and characteristics for this part

SpecificationLM4674TLX/NOPB
Channels2
FeaturesShutdown, Differential Inputs, PWM, Depop, Short-Circuit Protection
Load Impedance4 Ohm
Maximum Output Power (per Channel)2.5 W
Mounting TypeSurface Mount
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
Output Type2-Channel (Stereo)
Package / CaseDSBGA, 16-WFBGA
Package Length2.5 mm
Package Name16-DSBGA
Package Width2.12 mm
TypeClass D
Voltage - Supply (Maximum)5.5 V
Voltage - Supply (Minimum)2.4 V

Pricing

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CAD

3D models and CAD resources for this part