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MAX4295EEE+

音频功率放大器, 单声道, 2 W, D, 1通道, 2.7V 至 5.5V, QSOP, 16 引脚

MAXIM INTEGRATED PRODUCTS MAX4295EEE+
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制造商产品编号:
MAX4295EEE+
库存编号
2799020
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产品概述

The MAX4295EEE+ from Maxim Integrated Products is a mono, 2W, switch-mode class D audio power amplifier in 16 pin QSOP package. It has greater than 85% efficiency and is capable of delivering 2W continuous power to a 4ohm load making it ideal for portable multimedia and general purpose high power audio applications. The MAX4295 features a total harmonic distortion plus noise (THD+N) of 0.4% (fOSC = 125KHz), high efficiency and clickless power-up and shutdown. The active SHDN input disables the device and limits supply current to less than 1.5µA. The MAX4295 reduces the number of required external components. Internal high speed power MOS transistors allow operation as a bridge-tied load (BTL) amplifier. The frequency selectable PWM allows user to optimize the size and cost of output filter. Applications include palmtop/notebook computers, PDA audio, sound cards, game cards, boom boxes, AC amplifiers, battery powered speakers, cordless phones and portable equipments.
  • Supply voltage range is 2.7V to 5.5V, operating temperature range from -40°C to 85°C
  • 1A current limit, thermal protection and undervoltage lockout, low quiescent current of 2.8mA
  • 0.7W/channel output power at 3V
  • Logic programmable PWM frequency selection 125KHz, 250KHz, 500KHz, 1MHz
  • Low power shutdown mode
  • Duty cycle is 88% (VIN = 0.54 x VCC), switch on-resistance is 0.25ohm at VCC = 5V, IOUT = 150mA
  • Power supply rejection is 90dB at VCC = +2.7V to +5.5V
  • 1.25MHz GBW, 115dB large signal voltage gain (VOUT = 0.2V to 4.6V, RL(OPAMP)= 10Kohm)
  • Maximum output power is 0.4W at RL = 8ohm (VCC = +3V, fIN = 1KHz)
  • BTL configuration eliminates the need for isolation capacitors on the output

应用

音频, 便携式器材, 信号处理, 消费电子产品

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

产品信息

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:
2W

:
D

:
1通道

:
2.7V 至 5.5V

:
QSOP

:
16引脚

:
4ohm

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 -无限制
查找类似产品 选择并修改以上属性即可查找类似产品。

技术文档 (1)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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