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LM4667MM

Audio Power Amplifier, 1.3 W, D, 1 Channel, 2.7V to 5.5V, MSOP, 10 Pins

TEXAS INSTRUMENTS LM4667MM

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Manufacturer Part No:
LM4667MM
Order Code:
8181080

Product Overview

The LM4667MM is a filter-less high efficiency 1.3W Switching Audio Amplifier features an innovative modulator that eliminates the LC output filter used with typical switching amplifier. Eliminating the output filter reduces parts count, simplifies circuit design and reduces board area. The LM4667 processes analogue inputs with a delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width modulators. Operating on a single 3V supply, it is capable of driving 8R transducer loads at a continuous average output of 450mW with less than 1%THD+N. Its flexible power supply requirements allow operation from 2.7 to 5.5V. This audio amplifier features a low-power consumption shutdown mode. Shutdown may be enabled by driving the Shutdown pin to a logic low. The amplifier has short circuit protection against a short from the outputs to VDD, GND or across the outputs.
  • No output filter required for inductive transducers
  • 5ms Typical very fast turn on time
  • Minimum external components
  • "Click and Pop" suppression circuitry
  • Micro-power shutdown mode
  • Short-circuit protection

Applications

Communications & Networking, Portable Devices, Audio

Warnings

This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

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:
1.3W

:
D

:
1 Channel

:
2.7V to 5.5V

:
MSOP

:
10Pins

:
8ohm

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Packaging type Cut Tape
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Re-reel (minimum 150/reel):8181080RL Check stock

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