D2706 MS PC 20060809-S00002 No.A0508-1/8

Any and all SANYO Semiconductor products described or contained herein do not have specifications

that can handle applications that require extremely high levels of reliability, such as life-support systems,

aircraft's control systems, or other applications whose failure can be reasonably expected to result in

serious physical and/or material damage. Consult with your SANYO Semiconductor representative

nearest you before using any SANYO Semiconductor products described or contained herein in such

applications.

SANYO Semiconductor assumes no responsibility for equipment failures that result from using products

at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition

ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor

products described or contained herein.

LA47202P

Overview

The LA47202P is a 4-channel BTL power amplifier IC developed for use in car audio applications. The LA47202P adopts

a pure complementary output stage circuit structure with a v-pnp transistor for the high side and an npn transistor for the

low side to provide both high output power and high quality sound.

The LA47202P integrates all the functions required for car audio applications on the same chip, including a standby switch,

a muting function, and a full complement of protection circuits. It also features a self diagnostics function.

Functions

• High output : PO max = 47W (typ.) (VCC = 14.4V, f = 1kHz, JEITA max, RL = 4Ω)

: PO max = 29W (typ.) (VCC = 14.4V, f = 1kHz, THD = 10%, RL = 4Ω)

: PO max = 22W (typ.) (VCC = 14.4V, f = 1kHz, THD = 1%, RL = 4Ω)

• Muting function incorporated (pin 22)

• Built-in standby switch (pin 4)

• Self diagnostics function incorporated (pin 25) :

Output of both output offset detection, shorting to VCC or ground and load shorting signals

• Electric mirror noise decrease

• Full compliment of protection circuits (shorting to VCC, shorting to ground, load shorting, overvoltage, and thermal

protection).

• Improved oscillation stability

Note 1 : Take care to avoid wrong connection. Otherwise, IC or equipment may suffer breakdown, damage, or deterioration.

Note 2 : The protective circuit function is to avoid the abnormal state (wrong connection of the output) temporarily and does

not guarantee that IC is not broken.

These protective functions do not operate outside the operation guarantee range, and wrong connection of output

may cause breakdown of IC.

Note 3 : External parts, such as the anti-oscillation part, diode to prevent breakdown, may become necessary depending on the

set condition. Check their necessity for each set.

Monolithic Linear IC

Four-Channel BTL Power

Amplifier for Car Audio Systems

Ordering number : ENA0508