LY8009_12 Datasheet, PDF (1/17 Pages) Lyontek Inc. – 5.5W Mono Filterless Class D Audio power Amplifier

®
Rev. 1.1
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
FEATURES
„ 5.5W Into 2Ω from 5.5V power supply at
THD+N = 10% (Typ).
„ 3.6W Into 4Ω from 5.5V power supply at
THD+N = 10% (Typ).
„ 2.5V~5.5V power supply.
„ Low shutdown current.
„ Low quiescent current.
„ Short-circuit protection and automatic recovery.
„ Over-heat protection and automatic recovery.
„ Minimum external components.
„ No output filter required for inductive loads.
„ Low noise during turn-on and turn-off transitions.
„ Lead free and green package available.
(RoHS Compliant)
„ Package : 8pin 150mil ESOP available.
APPLICATION
„ Portable electronic devices
„ USB audio, Audio System.
„ Mini combo system, PDAs
GENERAL DESCRIPTION
The LY8009 is a high efficiency, 5.5W mono class D
audio power amplifier. It is a low noise, filterless
PWM architecture eliminates the output filter,
reducing external component count, system cost,
and simplify design.
The LY8009 is designed to meet of portable
electronic devices and mini speaker system. In
cellular handsets, the earpiece, speaker phone, and
melody ringer can each be driven by the LY8009.
The device is a single 5.5V power supply, it is
capable of driving 2Ω speaker load at a continuous
average output of 5.5W with 10% THD+N.
The gain of the LY8009 is externally configurable
which allows independent gain control from multiple
sources by summing the signals.
The device also features an internal thermal
shutdown protection and output pin short circuit
protection prevent the device from damage during
fault conditions.
PIN CONFIGURATION
LY8009 ESOP8 Pin Configuration
(Top View)
Lyontek Inc. reserves the rights to change the specifications and products without notice.
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan
TEL: [phone]
FAX: [phone]
1