Design contains obsolete parts

IS31AP2145A-UTLS2-EB: 3W @ 4Ω Mono, 2.7 ~ 5.5Vin

Summary

The IS31AP2145A is a 2.9W @ 5.0V mono, clip-less, filter-less, high efficiency Class-D audio power amplifier with automatic gain control.

The IS31AP2145A integrates an AGC (Automatic Gain Control) function to automatically prevent distortion of the audio signal by which we can enhance audio quality and also protect the speaker from damage at high power levels. The AGC function and its attack time/release time are selectable via the CTRL pin. The IS31AP2145A also provides thermal and over current protection functions.

The demo board has four modes (AGC1, AGC2, AGC OFF, and SHUTDOWN) to test the functionality of the IS31AP2145A.

Specifications

Manufacturer ISSI, Integrated Silicon Solution Inc
Category Audio Amplifiers
Eval Board Board not Stocked
Amplifier Type Class D
Number of Outputs Mono
Output Power (RMS) @ Load 3 W @ 4 Ω
Voltage In 2.7 ~ 5.5 V
THD+N (1kHz) @ Conditions < 0.175% @ 1 W (4 Ω, 3.6 V)
Features Click and Pop Suppression
Filterless Output
Short Circuit Protection
Shutdown, Enable, Standby
Thermal Protection
Efficiency @ Conditions >80%, 3.6 ~ 5V in, @ 0.2 ~ 3.0 W
Standby Current [Typical] 100 nA
Quiescent Current [Typical] 2 mA
Component Count + Extras 31 + 12
Application / Target Market Audio: Powered Speakers
Cell Phones
DVD/Blu-ray Players
GPS
Handheld games
Portable Devices
Tablets
Design Author ISSI
Main I.C. Base Part IS31AP2145A
Quiescent Current [Maximum] - Not Given
Standby Current [Maximum] - Not Given
Date Created By Author 2015-01
Date Added To Library 2015-12