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LM4995TMBD Fiches technique(PDF) 1 Page - Texas Instruments |
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LM4995TMBD Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 22 page LM4995, LM4995TMBD www.ti.com SNAS329G – APRIL 2006 – REVISED APRIL 2013 LM4995 1.3 W Audio Power Amplifier Check for Samples: LM4995, LM4995TMBD 1 FEATURES DESCRIPTION The LM4995 is an audio power amplifier primarily 2 • Available in Space-Saving 0.4mm Pitch designed for demanding applications in mobile DSBGA Package phones and other portable communication device • Ultra Low Current Shutdown Mode applications. It is capable of delivering 1.2W of • BTL Output Can Drive Capacitive Loads continuous average power to an 8 Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power • Improved Click and Pop Circuitry Eliminates supply. Noise during Turn-On and Turn-Off Transitions Boomer audio power amplifiers were designed • 2.4 - 5.5V Operation specifically to provide high quality output power with a • No Output Coupling Capacitors, Snubber minimal amount of external components. The Networks or Bootstrap Capacitors Required LM4995 does not require output coupling capacitors • Unity-Gain Stable or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications • External Gain Configuration Capability where minimal power consumption is a primary • WSON Package: 0.5mm Pitch, 3 x 3 mm requirement. The LM4995 features a low-power consumption APPLICATIONS shutdown mode, which is achieved by driving the • Mobile Phones shutdown pin with logic low. Additionally, the LM4995 • PDAs features an internal thermal shutdown protection mechanism. • Portable electronic devices The LM4995 contains advanced click and pop KEY SPECIFICATIONS circuitry which eliminates noise which would otherwise occur during turn-on and turn-off • PSRR at 3.6V (217Hz & 1kHz): 75 dB transitions. • Output Power at 5.0V, 1% THD+N, 8 Ω: The LM4995 is unity-gain stable and can be 1.3 W (typ) configured by external gain-setting resistors. • Output Power at 3.6V, 1% THD+N, 8 Ω: 625 mW (typ) • Shutdown Current: 0.01µA (typ) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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