Ordering number : ENA1542

Monolithic Linear IC
For Car Audio Systems
4-Channel BTL Power Amplifier
LV47002P

Overview
The LV47002P is the IC for 4-channel BTL power amplifier that is developed for car audio system.
Pch DMOS in the upper side of the output stage and Nch DMOS in the lower side of the output stage are complimentary.
High power and high quality sound are realized by that.
This IC incorporate various functions (standby switch, muting function, and various protection circuit) necessary for car
audio system. Also, it has a self-diagnosis function.

Functions
High output : P
O
max =48W (typical) (V
CC
=15.2V, f =1kHz, J EITA max, R
L
=4)
: P
O
max =28W (typical) (V
CC
=14.4V, f =1kHz, THD =10%, R
L
=4)
: P
O
max =21W (typical) (V
CC
=14.4V, f =1kHz, THD =1%, R
L
=4)
Built-in muting function (pin 22)
Built-in Standby switch (pin 4)
Built-in Self-diagnosis function (pin 25) :
Signal output in case of output offset detection, shorting to V
CC
, shorting to ground, and load shorting.
Electric mirror noise decrease
Built-in various protection circuit (shorting to ground, shorting to V
CC
, load shorting, over voltage and thermal shut
down)
No external anti-oscillation part necessary.

Note 1 : Please do not mistake connection.
A wrong connection may produce destruction, deterioration and damage for the IC or equipment.
Note 2 : The protective circuit function is provided to temporarily avoid abnormal state such as incorrect output connection.
But, there is no guarantee that the IC is not destroyed by the accident.
The protective function do not operate of the operation guarantee range. If the outputs are connected incorrectly, IC
destruction may occur when used outside of the operation guarantee range.
Note 3 : External parts, such as the anti-oscillation part, may become necessary depending on the set condition. Check their
necessity for each set.

Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harmto human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
82609 SY PC 20090717-S00002 No.A1542-1/9
www.DataSheet4U.com
LV47002P
No.A1542-2/9
Specifications
Maximum Ratings at Ta =25C
Parameter Symbol Conditions Ratings Unit
V
CC
max1 No signal, t =1 minute 26 V Maximum supply voltage
V
CC
max2 During operations 18 V
Maximum output current I
O
peak Per channel 4.5/ch A
Allowable power dissipation Pd max With an infinity heat sink 50 W
Operating temperature Topr -40 to +85 C
Storage temperature Tstg -40 to +150 C
Thermal resistance between the junction
and case
j-c 1 C/W

Recommended Operating Ranges at Ta =25C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
14.4 V
Recommended load resistance R
L
op 4
Operating supply voltage range V
CC
op A range not exceeding Pdmax 9 to 16 V

Electrical Characteristics at Ta =25C, V
CC
=14.4V, R
L
=4, f =1kHz, Rg =600
Ratings
Parameter Symbol Conditions
min typ max
Unit
Quiescent current I
CCO
R
L
=, Rg =0 200 400 mA
Standby current Ist Vst =0V 10 A
Voltage gain VG V
O
=0dBm 25 26 27 dB
Voltage gain difference VG -1 +1 dB
P
O
THD =10% 23 28 W
P
O
max1 J EITA max 43 W
Output power
P
O
max2 V
CC
=15.2, J EITA max 48 W
Output offset voltage Vn offset Rg =0 -100 +100 mV
Total harmonic distortion THD P
O
=4W 0.03 0.2 %
Channel separation CHsep V
O
=0dBm, Rg =10k 55 65 dB
Ripple rejection ratio SVRR Rg =0, fr =100Hz, V
CC
R =0dBm 45 65 dB
Output noise voltage V
NO
Rg =0, B.P.F. =20Hz to 20kHz 80 200 Vrms
Input resistance Ri 40 50 65 k
Mute attenuation Matt V
O
=20dBm, mute : on 75 90 dB
Vstby H Amp : on 2.5 V
CC
V Standby pin control voltage
Vstby L Amp : off 0.0 0.5 V
Mute pin control voltage Vmute H Mute : off Open -
Vmute L Mute : on 0.0 1.5 V
Output offset detection
Detection threshold voltage Vosdet 1.2 1.8 2.4 V
* 0dBm =0.775Vrms

www.DataSheet4U.com
LV47002P
Package Dimensions
unit : mm (typ)
3236A
Pd max -- Ta
-40 -20 0 20 40 60 80 100 120 140 160
0
10
20
30
40
50
60
70
Ambient temperature, Ta -- C

M
a
x
i
m
u
m

p
o
w
e
r

d
i
s
s
i
p
a
t
i
o
n
,

P
d

m
a
x

-
-

W
Infinite heat sink j-c=1C/W
No heat sink j-a=39C/W
heat sink(f=3.5C/W)
j-c+f=4.5C/W


















SANYO : HZIP25
2.0
29.2
25.6
(22.8)
(2.6)
(
5
.
0
)
(
1
2
.
3
)
(1.0) 0.52
(R1.7)
0.4
1
8
.
6

m
a
x
(
1
4
.
4
)
4.5
(
1
1
.
0
)
3
.
5
2
1
.
7
1
4
.
5
4.2 4.0
(8.5) ( 2.5)
1 25
2.0

Block Diagram


10k
4.7k
+
-
+
-
OUT 1
+
V
CC
3/4 V
CC
1/2 Tab
V
CC
OUT 1
-
PWR GND1
R
L
Protective
circuit
Mute
circuit
Stand by
Switch
PWR GND2
PWR GND3
PWR GND4
PRE GND
0.1F
1F
2200F
11 9
7
8
12
1 6 20
+
2
22 13
+
AC GND
16
25
R
L
R
L
R
L
+
-
+
-
OUT 2
+
OUT 2
-
Mute
5V
OFFSET
DIAG
5
3
+
-
+
-
OUT 3
+
OUT 3
-
15 17
19
18
+
IN 4
14
STBY
24
Protective
circuit
4
-
+ +
-
OUT 4
+
OUT 4
-
21
23
Low Level
Mute ON
+5V
ST ON
0.47F
+
Ripple
Filter
DC
10
22F
+
0.47F
+
IN 3
0.47F
+
IN 2
0.47F
+
IN 1
0.47F

































No.A1542-3/9
www.DataSheet4U.com
LV47002P
External Components
Part Name Recommended Value Purpose Remarks
C1 to C5 0.47F Cuts DC voltage The larger the constant value, the lower the cut-off frequency
The values of C1 to C5 must be the same
C6 22F Reduces ripples
Reduces pop noise
The larger the constant value, the longer the amplifier ON/OFF time
C7 2200F Ripple filter Eliminating power supply ripples
C8 0.1F Improves oscillation stability Reducing high-frequency noise
C9 1F Reduces pop noise The larger the constant value, the longer the mute ON/OFF time
R1 10k Reduces pop noise The larger the constant value, the longer the mute ON/OFF time
R2 4.7k Pull-up resistor
* The components and constant values within the test circuit are used for confirmation of characteristics and are not guarantees that incorrect or trouble will not
occur in application equipment.

Description of Operation

1. Standby switch function (pin 4)
Threshold voltage of the pin 4 is set by about 2VBE.
The amplifier is turned on by the applied voltage of 2.5V or more. Also, the amplifier is turned off by the applied
voltage of 0.5V or less.

4
STBY
10k
30k






Fig1 Standby equivalent circuit

2. Muting function (pin 22)
The muted state is obtained by setting pin 22 to the ground potential, enabling audio muting.
The muting function is turned on by the applied voltage of 1V or less to the resistance of 10k. And the muting
function is turn off when this pin opens.
Also, the time constant of the muting function is determined by external capacitor and resistor constants.
It is concerned with a pop noise in amplifier ON/OFF and mute ON/OFF. After enough examination, please set it.


+
MUTE
MUTE
OFF ON
10k
18k
1F
about
50A
about
2.5V
200
22















Fig2 Mute equivalent circuit

3. ACGND pin (pin 16)
The capacitor of the pin 16 must use the same capacitance value as the input capacitor.
Also, connect to the same PREGND as the input capacitor.
No.A1542-4/9
www.DataSheet4U.com
LV47002P
4. Self-diagnostics function (pin 25)
By detecting the unusual state of the IC, the signal is output to the pin 25.
Also, by controlling the standby switch after the signal of the pin 25 is detected by the microcomputer, the burnout of
the speaker can be prevented.
(1) Shorting to V
CC
/Shorting to ground : The pin 25 becomes the low level.
(2) Load shorting : The pin 25 is alternated between the low level and the high level
according to the output signal.
(3) Output offset detection : when the output offset voltage exceeds the detection threshold voltage,
the pin 25 becomes the low level.
* Note: The output offset abnormality is thought of as the leakage current of the input capacitor.
In addition, the pin 25 has become the NPN open collector output (active low).
The pin 25 must be left open when this function is not used.




+
-
+
-
+
+
16
25
5V
Speaker pin
output voltage
+1.8V (typical)
-1.8V (typical)
time
time
0V
OFFSET
DIAG
OUT
+
OUT
-
RT
IN
AC GND
Output voltage
25 pin voltage






























Fig3 Self-diagnosis Function Diagram




No.A1542-5/9
www.DataSheet4U.com
LV47002P
No.A1542-6/9
5. Sound quality (low frequencies)
By varying the value of input capacitor, low-frequency characteristic can be improved.
However, it is concerned the shock noise. Please confirm in each set when the capacitance value varies.

6. Pop noise
For pop noise prevention, it is recommended to use the muting function at the same time.
Please turn on the muting function simultaneously with power supply on when the amplifier is turned on. Next, turn
off the muting function after the output DC potential stabilization.
When the amplifier is turn off, turn off the power supply after turning on the muting function.

7. Oscillation stability
Pay due attention on the following points because parasitic oscillation may occur due to effects of the capacity load,
board layout, etc.
(1) Capacity load
When the capacitor is to be inserted between each output pin and GND so as to prevent electric mirror noise, select
the capacitance of maximum 1500pF. (Conditions : Our recommended board, R
L
=4)
(2) Board layout
Provide the V
CC
capacitor of 0.1F in the position nearest to IC.
PREGND must be independently wired and connected to the GND point that is as stable as possible, such as the
minus pin of the 2200F V
CC
capacitor.
In case of occurrence of parasitic oscillation, any one of following parts may be added as a countermeasure.
Note that the optimum capacitance must be checked for each set in the mounted state.
Series connection of CR (0.1F and 2.2) between BTL outputs
Series connection of CR(0.1F and 2.2) between each output pin and GND.













www.DataSheet4U.com
LV47002P

No.A1542-7/9

0
50
100
150
200
250
0
2
4
6
8
10
12
14
6 16 8 10 12 14 8 10 12 14 16 18
0.01
10 10
0.1
2 3 5 7 2 3 5 7 2 3 5 7
1 10
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
100 1k 10k 100 10 100k
Supply voltage, V
CC
-- V

























































Q
u
i
e
s
c
e
n
t

c
u
r
r
e
n
t
,

I
C
C
O
0
10
20
30
40
0.1
1
2
3
5
7
2
3
5
7
2
3
5
7
50
0
5
10
15
20
25
8 10 12 14 16 2 3 7 5 2 3 7 5 2 3 7 5 2 3 7 5
100 1k 10k
18
Supply voltage, V
CC
-- V
O
THD -- P
O
0.01
2
3
5
7
0.1
2
3
5
7
2
3
5
7
1
0.01
2
3
5
7
0.1
2
3
5
7
2
3
5
7
1
10
0.1
2 3 7
1 10
5 2 3 7 5 2 3 7 5
1
2 5 7 3 2 5 7 3 2 5 7 3
10 100
Output power, P
O
-- W
THD -- P
O
THD -- f
0.01
2
3
5
7
0.1
2
3
5
7
2
3
5
7
1
10
0.1 100
Output power, P
O
-- W
T
o
t
a
l

h
a
r
m
o
n
i
c

d
i
s
t
o
r
t
i
o
n
,

T
H
D


-
-


%
Frequency, f -- Hz
T
o
t
a
l

h
a
r
m
o
n
i
c

d
i
s
t
o
r
t
i
o
n
,

T
H
D


-
-


%
10 100k
Frequency, f -- Hz
O
u
t
p
u
t

p
o
w
e
r
,

P
O


-
-


W
6 18
Supply voltage, V
CC
-- V
O
u
t
p
u
t

m
i
d
p
o
i
n
t

v
o
l
t
a
g
e
,

V
N


-
-


V
I
CCO
-- V
CC
Output power, P
O
-- W
THD -- P
O
V
N
-- V
CC
P
O
-- V
CC
P
O
-- f


-
-


m
A
O
u
t
p
u
t

p
o
w
e
r
,

P


-
-


W
T
o
t
a
l

h
a
r
m
o
n
i
c

d
i
s
t
o
r
t
i
o
n
,

T
H
D


-
-


%
T
o
t
a
l

h
a
r
m
o
n
i
c

d
i
s
t
o
r
t
i
o
n
,

T
H
D


-
-


%
R
L
=Open
Rg =0
R
L
=Open
Rg =0
f =1kHz
R
L
=4
THD =10%
all channel is similar
all channel is similar
V
CC
=14.4V
R
L
=4
THD =1%
V
CC
=14.4V
R
L
=4
f =1kHz
V
CC
=14.4V
R
L
=4
f =100Hz
CH2
CH4
CH1
CH3
CH4
CH2
V
CC
=14.4V
R
L
=4
f =10kHz
V
CC
=14.4V
R
L
=4
P
O
=4W
CH1
CH3
CH2
CH4
CH1
CH3
CH2
CH4
CH3
CH1
www.DataSheet4U.com
LV47002P

No.A1542-8/9

--3
--2
--1
0
1
0
50
100
150
10 100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k
100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k
100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k 100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k
100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k
100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k
100
2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7
1k 10k 100k
0
80 80
8 10 12 14 16 18 10
100k
Frequency, f -- Hz

























































R
e
s
p
o
n
s
e


-
-


d
B
0
20
40
60
20
40
60
80
0
20
40
60
80
10 100k
Frequency, f -- Hz
CH.Sep -- f
0
20
40
60
0
20
40
60
80
10 100k
Frequency, f -- Hz
CH.Sep -- f
SVRR -- f
R
0
20
40
60
80
10 100k
Frequency, f -- Hz
C
h
a
n
n
e
l

s
e
p
a
r
a
t
i
o
n


-
-


d
B
Ripple frequency, f
R
-- Hz
R
i
p
p
l
e

r
e
j
e
c
t
i
o
n

r
a
t
i
o
,

S
V
R
R


-
-


d
B
10 100k
Frequency, f -- Hz
C
h
a
n
n
e
l

s
e
p
a
r
a
t
i
o
n


-
-


d
B
10
100k
Rg --
O
u
t
p
u
t

n
o
i
s
e

v
o
l
t
a
g
e
,

V
N
O


-
-


V
Respomse -- f
Supply voltage, V
CC
-- V
SVRR -- V
CC
V
NO
-- Rg
CH.Sep -- f CH.Sep -- f
C
h
a
n
n
e
l

s
e
p
a
r
a
t
i
o
n


-
-


d
B
C
h
a
n
n
e
l

s
e
p
a
r
a
t
i
o
n


-
-


d
B
R
i
p
p
l
e

r
e
j
e
c
t
i
o
n

r
a
t
i
o
,

S
V
R
R


-
-


d
B
all channel is similar
V
CC
=14.4V
R
L
=4
V
O
=0dBm
V
CC
=14.4V
R
L
=4
CH4
CH1
CH2
CH3
V
CC
=14.4V
R
L
=4
Rg =10k
V
O
=0dBm
(CH1)
V
CC
=14.4V
R
L
=4
Rg =10k
V
O
=0dBm
(CH2)
V
CC
=14.4V
R
L
=4
Rg =10k
V
O
=0dBm
(CH3)
V
CC
=14.4V
R
L
=4
Rg =10k
V
O
=0dBm
(CH4)
V
CC
R =0dBm
fR =100Hz
Rg =0
R
L
=4
V
O
=0dBm
V
CC
=14.4V
V
CC
R =0dBm
Rg =0
R
L
=4
CV
CC
=0.1F
C
H
1

C
H
2
C
H
1

C
H
4
C
H
1
C
H
3
C
H
2

C
H
1
C
H
2

C
H
4
C
H
2
C
H
3
CH4 CH3
CH3
CH1
C
H
3

C
H
2
C
H
4

C
H
1
C
H
4

C
H
2
CH3 CH4
CH2
CH1
C
H
3
CH4
CH1
CH3
CH4
CH2
www.DataSheet4U.com
LV47002P

PS No.A1542-9/9
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximumratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claimor suits with regard to a third party's
intellctual property rights which has resulted fromthe use of the technical information and products mentioned
above.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license fromthe authorities concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,
without the prior written consent of SANYO Semiconductor Co.,Ltd.

0
1
2
3
4
0
10
20
30
40
50
60
8 10 12 14 16 2 3 5 7
1
2 3 5 7 2 3 5 7
10
18
Supply voltage, V
CC
-- V
D
e
t
e
c
t
i
o
n

t
h
r
e
s
h
o
l
d

v
o
l
t
a
g
e
,

V
o
s
d
e
t


-

This catalog provides information as of August, 2009. Specifications and information herein are subject
to change without notice.
-


V
0
50
100
150
200
250
0
20
40
60
80
100
0 1.0 2.0 3.0 4.0 1.0 2.0 3.0 4.0 5.0
Standby control voltage, Vst -- V
Q
u
i
e
s
c
e
n
t

c
u
r
r
e
n
t
,

I
C
C
O


-
-


m
A
0 5.0
Mute control voltage, V Mute -- V
M
u
t
e

a
t
t
e
n
u
a
t
i
o
n
,

M
u
t
e

A
T
T


-
-


d
B
0.1 100
Output power, P
O
-- W
P
o
w
e
r

d
i
s
s
i
p
a
t
i
o
n
,

P
d


-
-


W
Offset DIAG -- V
CC
Pd -- P
O
I
CCO
-- Vst Mute ATT -- V Mute
R
L
=4
Rg =0
f =1kHz
R
L
=4
Pd =V
CC
I
CC
- P
O
4CH
Detection Level
V
C
C

=

1
4
.
4
V
V
C
C

=

1
6
V
V
CC
=14.4V
R
L
=Open
Rg =0
V
CC
=14.4V
R
L
=4
V
O
=20dBm
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