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NCP2890

更新时间： 2024-11-07 22:50:55
品牌 Logo 应用领域
安森美 - ONSEMI 放大器功率放大器
页数 文件大小 规格书
16页 194K
描述
1.0 Watt Audio Power Amplifier

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NCP2890 数据手册

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NCP2890  
1.0 Watt Audio Power  
Amplifier  
The NCP2890 is an audio power amplifier designed for portable  
communication device applications such as mobile phone  
applications. The NCP2890 is capable of delivering 1.0 W of  
http://onsemi.com  
continuous average power to an 8.0 Wꢀ BTL load from a 5.0 V power  
supply, and 320 mW to a 4.0 W BTL load from a 2.6 V power supply.  
The NCP2890 provides high quality audio while requiring few  
external components and minimal power consumption. It features a  
low−power consumption shutdown mode, which is achieved by  
driving the SHUTDOWN pin with logic low.  
The NCP2890 contains circuitry to prevent from “pop and click”  
noise that would otherwise occur during turn−on and turn−off  
transitions.  
For maximum flexibility, the NCP2890 provides an externally  
controlled gain (with resistors), as well as an externally controlled  
turn−on and turn−off times (with the bypass capacitor).  
Due to its excellent PSRR, it can be directly connected to the  
battery, saving the use of an LDO.  
MARKING  
DIAGRAMS  
A3  
9−Pin Flip−Chip CSP  
FC SUFFIX  
MAx  
AYWW  
1
CASE 499E  
C1  
A1  
8
Micro8  
DM SUFFIX  
CASE 846A  
MAB  
RYW  
8
1
1
This device is available in a 9−Pin Flip−Chip CSP (standard  
Tin−Lead and Lead−Free versions) and a Micro8t package.  
x
= Specific Device Code,  
G or H  
= Assembly Location  
= Year  
A, R  
Y
Features  
WW, W = Work Week  
• Pb−Free Packages are Available  
• 1.0 W to an 8.0 Wꢀ BTL Load from a 5.0 V Power Supply  
PIN CONNECTIONS  
9−Pin Flip−Chip CSP  
• Excellent PSRR: Direct Connection to the Battery  
• “Pop and Click” Noise Protection Circuit  
• Ultra Low Current Shutdown Mode  
A1  
A2  
A3  
INM  
OUTA  
INP  
• 2.2 V−5.5 V Operation  
• External Gain Configuration Capability  
• External Turn−on and Turn−off Time Configuration Capability  
• Up to 1.0 nF Capacitive Load Driving Capability  
• Thermal Overload Protection Circuitry  
B1  
B2  
B3  
VM_P  
VM  
V
p
C1  
C2  
C3  
BYPASS OUTB SHUTDOWN  
(Top View)  
Typical Applications  
• Portable Electronic Devices  
• PDAs  
Micro8  
• Wireless Phones  
SHUTDOWN  
BYPASS  
1
2
8
7
6
5
OUTB  
VM  
INP  
INM  
V
p
3
4
OUTA  
(Top View)  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 14 of this data sheet.  
Semiconductor Components Industries, LLC, 2004  
1
Publication Order Number:  
November, 2004 − Rev. 8  
NCP2890/D  
1234567...16

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