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LM4951SDX/NOPB 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
音频放大器
封装:
WSON-10
描述:
宽电压范围 1.8W 音频功率放大器 10-WSON
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
典型应用电路图在P2
封装尺寸在P18P20P21
标记信息在P18
封装信息在P3P18P19P20P21
技术参数、封装参数在P1P3P4P5P13
应用领域在P1P13P23
电气规格在P3P4P5P6P7P8P9P10P11P13P14
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LM4951SDX/NOPB数据手册
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LM4951
www.ti.com
SNAS244N –AUGUST 2004–REVISED MAY 2013
LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier
Check for Samples: LM4951
1
FEATURES
DESCRIPTION
The LM4951 is an audio power amplifier primarily
2
• Click and Pop Circuitry Eliminates Noise
designed for demanding applications in Portable
during Turn-On and Turn-Off Transitions
Handheld devices. It is capable of delivering 1.8W
• Low Current, Active-Low Shutdown Mode
mono BTL to an 8Ω load, continuous average power,
• Low Quiescent Current
with less than 1% distortion (THD+N) from a 7.5V
DC
power supply.
• Thermal Shutdown Protection
Boomer audio power amplifiers were designed
• Unity-Gain Stable
specifically to provide high quality output power with a
• External Gain Configuration Capability
minimal amount of external components. The
LM4951 does not require bootstrap capacitors, or
APPLICATIONS
snubber circuits.
• Portable Handheld Devices up to 9V
The LM4951 features a low-power consumption
• Cell Phone
active-low shutdown mode. Additionally, the LM4951
features an internal thermal shutdown protection
• PDA
mechanism.
KEY SPECIFICATIONS
The LM4951 contains advanced click and pop
circuitry that eliminates noises which would otherwise
• Wide Voltage Range: 2.7V to 9 V
occur during turn-on and turn-off transitions.
• Quiescent Power Supply Current (V
DD
=
The LM4951 is unity-gain stable and can be
7.5V): 2.5mA (typ)
configured by external gain-setting resistors.
• Power Output BTL at 7.5V, 1% THD: 1.8 W (typ)
• Shutdown Current: 0.01µA (typ)
• Fast Turn on Time: 25ms (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.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2013, 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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