Features

• 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

Key Specifications

• PSRR at 217Hz, VDD = 5V (Fig. 1): 62dB(typ.)
• Power Output at 5.0V & 1% THD: 1W(typ.)
• Power Output at 3.3V & 1% THD: 400mW(typ.)
• Shutdown Current: 0.1μA(typ.)

Datasheet: LM4890

Parameters

• Audio input type:Analog Input
• Architecture: Class-AB
• Speaker channels (Max): Mono
• Power stage supply (Max) (V): 5.5
• Power stage supply (Min) (V): 2.2
• Load (Min) (ohms):8
• Output power (W): 1.2
• SNR (dB): 93
• THD + N @ 1 kHz (%): 0.1
• Iq (Typ) (mA): 5
• Control interface: Hardware
• Closed/open loop: Closed
• Analog supply (Min) (V): 2.2
• Analog supply (Max) (V): 5.5
• PSRR (dB): 66
• Operating temperature range (C): -40 to 85