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LM4674ATLSLASHNOPB.A中文资料
LM4674ATLSLASHNOPB.A数据手册规格书PDF详情
1FEATURES
2• Output Short Circuit Protection
• Stereo Class D Operation
• No Output Filter Required
• Logic Selectable Gain
• Independent Shutdown Control
• Minimum External Components
• Click and Pop Suppression
• Micro-Power Shutdown
• Available in Space-Saving 2mm x 2mm x
0.6mm DSBGA Package
APPLICATIONS
• Mobile Phones
• PDAs
• Laptops
KEY SPECIFICATIONS
• Efficiency at 3.6V, 100mW into 8Ω 80% (typ)
• Efficiency at 3.6V, 500mW into 8Ω 85% (typ)
• Efficiency at 5V, 1W into 8Ω 85% (typ)
• Quiescent Power Supply Current at 3.6V
Supply 4mA
• Power Output at VDD = 5V, RL = 4Ω, THD ≤ 10%
2.5W (typ)
• Power Output at VDD = 5V, RL = 8Ω, THD ≤ 10%
1.5W (typ)
• Shutdown Current 0.1μA (typ)
DESCRIPTION
The LM4674A is a single supply, high efficiency,
2.5W/channel, filterless switching audio amplifier. A
low noise PWM architecture eliminates the output
filter, reducing external component count, board area
consumption, system cost, and simplifying design.
The LM4674A is designed to meet the demands of
mobile phones and other portable communication
devices. Operating from a single 5V supply, the
device is capable of delivering 2.5W/channel of
continuous output power to a 4Ω load with less than
10% THD+N. Flexible power supply requirements
allow operation from 2.4V to 5.5V.
The LM4674A features high efficiency compared to
conventional Class AB amplifiers. When driving an
8Ω speaker from a 3.6V supply, the device features
85% efficiency at PO = 500mW. Four gain options are
pin selectable through the GAIN0 and GAIN1 pins.
Output short circuit protection prevents the device
from being damaged during fault conditions. Superior
click and pop suppression eliminates audible
transients on power-up/down and during shutdown.
Independent left/right shutdown controls maximizes
power savings in mixed mono/stereo applications.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
原厂正品 |
23+ |
BGA |
20000 |
原装正品,假一罚十 |
|||
NS |
24+ |
BGA |
2418 |
||||
NS |
2016+ |
BGA |
3000 |
只做原装,假一罚十,公司可开17%增值税发票! |
|||
NSC |
25+ |
SOT490 |
18000 |
原厂直接发货进口原装 |
|||
NSC |
25+ |
BGA |
3000 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
|||
NS |
23+ |
NA |
8436 |
专业电子元器件供应链正迈科技特价代理特价,原装元器件供应,支持开发样品 |
|||
NSC |
18+ |
BGA |
85600 |
保证进口原装可开17%增值税发票 |
|||
NSC |
20+ |
DFN |
32970 |
原装优势主营型号-可开原型号增税票 |
|||
NS |
ROHS+Original |
NA |
8436 |
专业电子元器件供应链/QQ 350053121 /正纳电子 |
|||
NSC |
23+ |
BGA |
30000 |
代理原装现货,价格优势 |
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