Download the LM4890M datasheet PDF.
This datasheet also covers the LM4890 variant, as both devices belong to the same 1 watt audio power amplifier family and are provided as variant models within a single manufacturer datasheet.
General Description
The LM4890 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.
It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.
Key Features
1.
2 Available in Space-Saving Packages: DSBGA, VSSOP, SOIC, and WSON.
Ultra Low Current Shutdown Mode.
BTL Output Can Drive Capacitive Loads.
Improved Pop & Click Circuitry Eliminates
Noises During Turn-On and Turn-Off Transitions.
2.2 - 5.5V Operation.
No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required.
Full PDF Text Transcription for LM4890M (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
LM4890M. For precise diagrams, and layout, please refer to the original PDF.
LM4890 www.ti.com SNAS138L – SEPTEMBER 2001 – REVISED MAY 2013 LM4890 1 Watt Audio Power Amplifier Check for Samples: LM4890 FEATURES 1 •2 Available in Space-Saving Packa...
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heck for Samples: LM4890 FEATURES 1 •2 Available in Space-Saving Packages: DSBGA, VSSOP, SOIC, and WSON • Ultra Low Current Shutdown Mode • BTL Output Can Drive Capacitive Loads • Improved Pop & Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions • 2.2 - 5.5V Operation • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required • Thermal Shutdown Protection • Unity-Gain Stable • External Gain Configuration Capability APPLICATIONS • Mobile Phones • PDAs • Portable Electronic Devices KEY SPECIFICATIONS • PSRR at 217Hz, VDD = 5V (Fig. 1): 62dB(typ.) • Power Output at 5.0V & 1% THD:
LM4890M Datasheet
