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MAX4295EEE+

Audio Power Amplifier, Mono, 2 W, D, 1 Channel, 2.7V to 5.5V, QSOP, 16 Pins

MAXIM INTEGRATED PRODUCTS MAX4295EEE+

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Manufacturer Part No:
MAX4295EEE+
Order Code:
2799020
Technical Datasheet:
MAX4295EEE+   Datasheet
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Product Overview

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

Applications

Audio, Portable Devices, Signal Processing, Consumer Electronics

Product Information

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:
2W

:
D

:
1 Channel

:
2.7V to 5.5V

:
QSOP

:
16Pins

:
4ohm

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (1)

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