LV47002P [ONSEMI]
IC,AUDIO AMPLIFIER,QUAD,ZIP,25PIN,PLASTIC;
| 型号： | LV47002P |
| 厂家： | 
ONSEMI |
| 描述： | IC,AUDIO AMPLIFIER,QUAD,ZIP,25PIN,PLASTIC 放大器 商用集成电路 |
| 文件： | 总9页 (文件大小：167K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA1542A
Monolithic Linear IC
For Car Audio Systems
LV47002P
4-Channel BTL Power Amplifier
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 max = 48W (typical) (V
= 15.2V, f = 1kHz, JEITA max, R = 4Ω)
L
O
CC
CC
CC
: P max = 28W (typical) (V
= 14.4V, f = 1kHz, THD = 10%, R = 4Ω)
O
L
: P max = 21W (typical) (V
= 14.4V, f = 1kHz, THD = 1%, R = 4Ω)
L
O
• 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 , shorting to ground, and load shorting.
CC
• Electric mirror noise decrease
• Built-in various protection circuit (shorting to ground, shorting to V , load shorting, over voltage and thermal shut
CC
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.
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 harm to 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.
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.
60310 SY/81909 SY PC 20090717-S00002 No.A1542-1/9
LV47002P
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
max1
Conditions
No signal, t = 1 minute
During operations
Ratings
Unit
V
Maximum supply voltage
V
V
I
26
18
CC
max2
V
CC
peak
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Per channel
4.5/ch
50
A
O
Pd max
Topr
Tstg
With an infinity heat sink
W
-40 to +85
-40 to +150
1
°C
°C
°C/W
Thermal resistance between the junction
and case
θj-c
Recommended Operating Ranges at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended supply voltage
Recommended load resistance
Operating supply voltage range
V
R
V
14.4
4
CC
op
Ω
L
op
A range not exceeding Pdmax
9 to 16
V
CC
Electrical Characteristics at Ta = 25°C, V
CC
= 14.4V, R = 4Ω, f = 1kHz, Rg = 600Ω
L
Ratings
typ
Parameter
Symbol
Conditions
min
Unit
max
400
10
Quiescent current
I
R
= ∞, Rg = 0Ω
200
mA
μA
dB
dB
W
CCO
Ist
L
Standby current
Voltage gain
Vst = 0V
= 0dBm
VG
V
25
-1
26
27
O
Voltage gain difference
Output power
ΔVG
+1
P
THD = 10%
JEITA max
23
28
43
48
O
P
max1
W
O
O
P
max2
V
= 15.2, JEITA max
W
CC
Rg = 0Ω
Output offset voltage
Total harmonic distortion
Channel separation
Ripple rejection ratio
Output noise voltage
Input resistance
Vn offset
THD
-100
+100
0.2
mV
%
P
= 4W
0.03
65
O
O
CHsep
SVRR
V
= 0dBm, Rg = 10kΩ
55
45
dB
dB
μVrms
kΩ
dB
V
Rg = 0Ω, fr = 100Hz, V R = 0dBm
65
CC
V
Rg = 0Ω, B.P.F. = 20Hz to 20kHz
80
200
65
NO
Ri
40
75
50
Mute attenuation
Matt
V
= 20dBm, mute : on
90
O
Standby pin control voltage
Vstby H
Vstby L
Vmute H
Vmute L
Amp : on
Amp : off
Mute : off
Mute : on
2.5
0.0
V
CC
0.5
V
Mute pin control voltage
Open
-
0.0
1.5
V
Output offset detection
Detection threshold voltage
Vosdet
±1.2
±1.8
±2.4
V
* 0dBm = 0.775Vrms
No.A1542-2/9
LV47002P
Package Dimensions
unit : mm (typ)
3236A
Pd max -- Ta
70
60
50
40
30
20
10
0
29.2
25.6
(22.8)
Infinite heat sink θj-c=1°C/W
(8.5)
(
2.5)
4.5
(R1.7)
heat sink(θf=3.5°C/W)
θj-c+θf=4.5°C/W
0.4
4.0
1
25
4.2
(2.6)
(1.0)
0.52
No heat sink θj-a=39°C/W
-40
-20
0
20
40
60
80
100 120 140 160
2.0
2.0
Ambient temperature, Ta -- °C
SANYO : HZIP25
Block Diagram
V
CC
+
Tab
V
1/2
V
3/4
CC
CC
1
6
20
IN 1
+
OUT 1
+
-
+
-
11
9
7
R
L
-
OUT 1
PWR GND1
Protective
circuit
8
IN 2
+
-
OUT 2
+
-
+
-
12
5
3
R
L
OUT 2
DC
+
Ripple
Filter
10
16
PWR GND2
2
OFFSET
DIAG
AC GND
25
5V
Mute
+
PRE GND
IN 3
Mute
circuit
13
15
22
Low Level
Mute ON
+
-
OUT 3
+
-
+
-
17
19
R
L
OUT 3
PWR GND3
Protective
circuit
18
IN 4
+
-
OUT 4
+
-
+
-
14
21
23
R
L
OUT 4
PWR GND4
Stand by
Switch
STBY
4
24
+5V
ST ON
No.A1542-3/9
LV47002P
External Components
Part Name
Recommended Value
Purpose
Remarks
C1 to C5
0.47μF
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
22μF
Reduces ripples
Reduces pop noise
Ripple filter
The larger the constant value, the longer the amplifier ON/OFF time
C7
C8
C9
R1
R2
2200μF
0.1μF
1μF
Eliminating power supply ripples
Reducing high-frequency noise
Improves oscillation stability
Reduces pop noise
Reduces pop noise
Pull-up resistor
The larger the constant value, the longer the mute ON/OFF time
The larger the constant value, the longer the mute ON/OFF time
10kΩ
4.7kΩ
* 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.
STBY
4
10kΩ
30kΩ
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 10kΩ. 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
about
50μA
OFF
ON
MUTE
22
10kΩ
200Ω
18kΩ
+
1μF
about
2.5V
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
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 /Shorting to ground : The pin 25 becomes the low level.
CC
(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.
5V
OFFSET
DIAG
25
IN
+
-
OUT
OUT
+
+
RT
AC GND
16
-
-
Output voltage
Speaker pin
output voltage
+1.8V (typical)
0V
-1.8V (typical)
time
25 pin voltage
time
Fig3 Self-diagnosis Function Diagram
No.A1542-5/9
LV47002P
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 = 4Ω)
L
(2) Board layout
• Provide the V
capacitor of 0.1μF in the position nearest to IC.
CC
• PREGND must be independently wired and connected to the GND point that is as stable as possible, such as the
minus pin of the 2200μF V capacitor.
CC
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 (0.1μF and 2.2Ω) between BTL outputs
• Series connection of CR(0.1μF and 2.2Ω) between each output pin and GND.
No.A1542-6/9
LV47002P
I
-- V
CC
V
-- V
CC
CCO
N
250
200
150
100
14
12
10
8
R
= Open
R = Open
L
L
Rg = 0Ω
Rg = 0Ω
6
4
50
0
2
0
6
8
10
12
14
16
18
6
8
10
12
14
16
18
Supply voltage, V
-- V
Supply voltage, V -- V
CC
CC
P
-- V
P
-- f
O
CC
O
50
40
30
20
25
20
15
10
f = 1kHz
R
= 4Ω
L
THD = 10%
all channel is similar
all channel is similar
10
0
5
0
V
= 14.4V
CC
= 4Ω
R
L
THD = 1%
8
10
12
14
16
18
2
3
5 7
2
3
5 7
2
3
5 7
2
3
5 7
100k
10
100
1k
10k
Supply voltage, V
-- V
Frequency, f -- Hz
CC
THD -- P
THD -- P
O
O
10
7
5
10
7
5
V
R
= 14.4V
V
= 14.4V
CC
= 4Ω
CC
R
= 4Ω
L
L
f = 1kHz
f = 100Hz
3
2
3
2
1
1
7
5
7
5
3
2
3
2
CH2
0.1
CH4
0.1
7
5
CH2
CH4
7
5
CH3
3
2
3
2
CH3
CH1
CH1
0.01
0.01
0.1
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
100
0.1
1
10
100
1
10
Output power, P -- W
Output power, P -- W
O
O
THD -- f
THD -- P
O
10
7
5
10
7
5
V
= 14.4V
V
= 14.4V
CC
= 4Ω
CC
R
R
= 4Ω
L
L
f = 10kHz
P
= 4W
O
3
2
3
2
1
1
7
5
7
5
3
2
3
2
CH4
CH2
0.1
0.1
CH2
CH4
7
5
7
5
CH1
CH3
3
2
3
2
CH1
CH3
0.01
0.1
0.01
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
100k
1
10
100
10
100
1k
10k
Frequency, f -- Hz
Output power, P -- W
O
No.A1542-7/9
LV47002P
Respomse -- f
V
-- Rg
NO
1
0
150
100
V
= 14.4V
= 0dBm
V
= 14.4V
CC
CC
R = 4Ω
L
R
= 4Ω
L
CH4
V
O
CH1
CH2
all channel is similar
CH3
--1
50
--2
--3
0
10
2
3
5 7
2
2
2
3
5 7
2
3
5 7
2
2
2
3
3
3
5 7
100k
2
3
5 7
2
3
5 7
2
3
5 7
10k
2
3
3
3
3
5 7
100k
10
100
1k
10k
10k
10k
100
1k
Frequency, f -- Hz
CH.Sep -- f
Rg -- Ω
CH.Sep -- f
80
60
40
80
60
40
20
0
V
= 14.4V
= 4Ω
20
0
V
= 14.4V
CC
CC
R
R = 4Ω
L
L
Rg = 10kΩ
Rg = 10kΩ
V = 0dBm
O
V
= 0dBm
O
(CH1→)
(CH2→)
2
3
5 7
3
5 7
2
3
5 7
5 7
100k
2
3
5 7
2
3
5 7
2
3
5 7
2
2
2
5 7
100k
10
100
1k
10
100
1k
10k
10k
10k
Frequency, f -- Hz
CH.Sep -- f
Frequency, f -- Hz
CH.Sep -- f
80
80
60
60
40
40
20
0
20
0
V
R
= 14.4V
V
= 14.4V
CC
CC
= 4Ω
R = 4Ω
L
L
Rg = 10kΩ
Rg = 10kΩ
V = 0dBm
O
V
= 0dBm
O
(CH3→)
(CH4→)
2
3
5 7
3
5 7
2
3
5 7
5 7
100k
2
3
5 7
2
3
5 7
1k
2
3
5 7
5 7
100k
10
100
1k
10
100
Frequency, f -- Hz
SVRR -- V
Frequency, f -- Hz
SVRR -- f
R
CC
80
80
60
40
CH4
60
40
CH1
20
0
20
0
V
R = 0dBm
V
V
= 14.4V
R = 0dBm
CC
CC
CC
fR = 100Hz
Rg = 0Ω
Rg = 0Ω
R
V
= 4Ω
R = 4Ω
L
L
O
= 0dBm
CV = 0.1μF
CC
8
10
12
14
16
18
10
2
3
5 7
2
3
5 7
2
3
5 7
5 7
100k
100
1k
Ripple frequency, f -- Hz
Supply voltage, V
-- V
R
CC
No.A1542-8/9
LV47002P
Offset DIAG -- V
CC
Pd -- P
O
4
3
2
60
50
40
30
20
R
= 4Ω
f = 1kHz
L
Rg = 0Ω
R = 4Ω
L
Pd = V
× I
- P × 4CH
O
CC CC
Detection Level
= 16V
CC
V
1
0
10
0
8
10
12
14
16
18
2
3
5
7
2
3
5
7
2
3
5 7
100
0.1
1
10
Supply voltage, V
-- V
Output power, P -- W
O
CC
I
-- Vst
Mute ATT -- V Mute
CCO
250
200
150
100
100
80
V
= 14.4V
V
= 14.4V
CC
CC
R
= Open
R
= 4Ω
L
L
Rg = 0Ω
V
= 20dBm
O
60
40
20
0
50
0
0
1.0
2.0
3.0
4.0
5.0
0
1.0
2.0
3.0
4.0
5.0
Standby control voltage, Vst -- V
Mute control voltage, V Mute -- V
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 maximum ratings, 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.
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 from the 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.
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.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
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 claim or suits with regard to a third party's
intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of June, 2010. Specifications and information herein are subject
to change without notice.
PS No.A1542-9/9
相关型号：
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