42706 MS JK B8-4645 No.A0318-1/3

LA4225

Overview

LA4225 is a 5W monaural power amplifier intended for television audio output.

This IC requires only two external components (capacitors) to construct amplifiers and is ideal for realizing substantial

cost reduction of electronic devices.

Functions

• 5W monaural power amplifier (VCC = 18V, RL = 8Ω)

• Full complement of protection circuits

Thermal shutdown protector on chip

Short between an output and DC protection circuit

• On-chip pop noise reduction circuit

Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

Rg = 0

24

V

Maximum output current

IO peak

3.3

A

Allowable power dissipation

Pd max

Arbitrarily large heat sink

7.5

W

Operating temperature

Topr

-25 to +75

C

Storage temperature

Tstg

-40 to +150

C

Operating Conditions at Ta=25

°C

Parameter

Symbol

Conditions

Ratings

unit

Recommended supply voltage

VCC

13.2

V

Recommended load resistance

RL

4

Ω

Allowable operating voltage range

VCC op

Not exceeding the package Pd.

5 to 22

V

Recommended load resistance

range

RL op

4 to 8

Ω

Ordering number : ENA0318

Monolithic Linear IC

Audio Output for TV application

5W Monaural Power Amplifier