công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
LM4673SDBD bảng dữ liệu(PDF) 1 Page - Texas Instruments |
|
LM4673SDBD bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 28 page LM4673, LM4673SDBD, LM4673TMBD www.ti.com SNAS317D – DECEMBER 2005 – REVISED MAY 2013 LM4673 Filterless, 2.65W, Mono, Class D Audio Power Amplifier Check for Samples: LM4673, LM4673SDBD, LM4673TMBD 1 FEATURES DESCRIPTION The LM4673 is a single supply, high efficiency, 2 • Mono Class D Operation 2.65W, mono, Class D audio amplifier. A low noise, • No Output Filter Required for Inductive Loads filterless PWM architecture eliminates the output filter, • Externally Configurable Gain reducing external component count, board area consumption, system cost, and simplifying design. • Very Fast Turn On Time: 17 μs (typ) • Minimum External Components The LM4673 is designed to meet the demands of mobile phones and other portable communication • "Click and Pop" Suppression Circuitry devices. Operating on a single 5V supply, it is • Micro-Power Shutdown Mode capable of driving a 4 Ω speaker load at a continuous • Available in Space-Saving 0.4mm Pitch average output of 2.1W with less than 1% THD+N. Its DSBGA and WSON Packages flexible power supply requirements allow operation from 2.4V to 5.5V. APPLICATIONS The LM4673 has high efficiency with speaker loads compared to a typical Class AB amplifier. With a 3.6V • Mobile Phones supply driving an 8 Ω speaker, the IC's efficiency for a • PDAs 100mW power level is 80%, reaching 88% at 400mW • Portable Electronic Devices output power. The LM4673 features a low-power consumption KEY SPECIFICATIONS shutdown mode. Shutdown may be enabled by • Efficiency at 3.6V, 400mW into 8 Ω Speaker driving the Shutdown pin to a logic low (GND). 88% (typ) The gain of the LM4673 is externally configurable • Efficiency at 3.6V, 100mW into 8 Ω Speaker which allows independent gain control from multiple 80% (typ) sources by summing the signals. Output short circuit and thermal overload protection prevent the device • Efficiency at 5V, 1W into 8 Ω Speaker 86% (typ) from damage during fault conditions. • Quiescent Current, 3.6V Supply 2.1mA (typ) • Total Shutdown Power Supply Current 0.01µA (typ) • Single Supply Range 2.4V to 5.5V • PSRR, f = 217Hz 78dB 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 © 2005–2013, 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. |
Số phần tương tự - LM4673SDBD |
|
Mô tả tương tự - LM4673SDBD |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |