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LM4901
www.ti.com LM4901 SNAS139F – DECEMBER 2001 – REVISED DECEMBER 2001 1.6 Watt Audio Power Amplifier with Selectable
Shutdown Logic Level
Check for Samples: LM4901 FEATURES DESCRIPTION The LM4901 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 and 1.6
watts of continuous avearge power to a 4Ω BTL load
with less than 1% distortion (THD+N) from a 5VDC
power supply. 1 2 Available in Space-Saving Packages: WSON
and VSSOP
Ultra Low Current Shutdown Mode
BTL Output can Drive Capacitive Loads
Improved Pop & Click Circuitry Eliminates
Noise During Turn-On and Turn-Off
Transitions
2.0 -5.5V Operation
No Output Coupling Capacitors, Snubber
Networks or Bootstrap Capacitors Required
Unity-Gain Stable
External Gain Configuration Capability
User Selectable Shutdown High or Low logic …
