(China (Mainland))
Product Summary
The LM4990MMX is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. The LM4990MMX is capable of delivering 1.25 watts of continuous average power to an 8Ω BTL load and 2 watts of continuous average power (LD and MH only) to a 4Ω BTL load with less than 1% distortion (THD+N+N) from a 5VDC power supply. The applications of the LM4990MMX include Mobile Phones, PDAs, Portable electronic devices.
Parametrics
LM4990MMX absolute maximum ratings: (1)Supply Voltage: 6.0V; (2)Storage Temperature: -65℃ to +150℃; (3)Input Voltage: -0.3V to VDD +0.3V; (4)Power Dissipation: Internally Limited; (5)ESD Susceptibility: 2000V; (6)ESD Susceptibility: 200V; (7)Junction Temperature: 150℃.
Features
LM4990MMX features: (1)Available in space-saving packages: LLP, Exposed-DAP TSSOP, MSOP, and ITL; (2)Ultra low current shutdown mode; (3)Improved pop & click circuitry eliminates noise during turn-on and turn-off transitions; (4)2.2 - 5.5V operation; (5)No output coupling capacitors, snubber networks or bootstrap capacitors required; (6)Unity-gain stable; (7)External gain configuration capability; (8)User selectable shutdown High or Low logic Level.
Diagrams
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 LM4990MMX |
National Semiconductor (TI) |
Audio Amplifiers |
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LM4990MMX/NOPB |
National Semiconductor (TI) |
Audio Amplifiers |
Data Sheet |
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