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Ordering number : ENA1542
Monolithic Linear IC
LV47002P
Overview
For Car Audio Systems
4-Channel BTL Power Amplifier
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 : PO max = 48W (typical) (VCC = 15.2V, f = 1kHz, JEITA max, RL = 4) : PO max = 28W (typical) (VCC = 14.4V, f = 1kHz, THD = 10%, RL = 4) : PO max = 21W (typical) (VCC = 14.4V, f = 1kHz, THD = 1%, RL = 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 VCC, shorting to ground, and load shorting. * Electric mirror noise decrease * Built-in various protection circuit (shorting to ground, shorting to VCC, 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.
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. www..com 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.
82609 SY PC 20090717-S00002 No.A1542-1/9
LV47002P
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Symbol VCC max1 VCC max2 Maximum output current Allowable power dissipation Operating temperature Storage temperature Thermal resistance between the junction and case IO peak Pd max Topr Tstg j-c Conditions No signal, t = 1 minute During operations Per channel With an infinity heat sink Ratings 26 18 4.5/ch 50 -40 to +85 -40 to +150 1 Unit V V A W C C C/W
Recommended Operating Ranges at Ta = 25C
Parameter Recommended supply voltage Recommended load resistance Operating supply voltage range Symbol VCC RL op VCC op A range not exceeding Pdmax Conditions Ratings 14.4 4 9 to 16 Unit V V
Electrical Characteristics at Ta = 25C, VCC = 14.4V, RL = 4, f = 1kHz, Rg = 600
Parameter Quiescent current Standby current Voltage gain Voltage gain difference Output power Symbol ICCO Ist VG VG PO PO max1 PO max2 Output offset voltage Total harmonic distortion Channel separation Ripple rejection ratio Output noise voltage Input resistance Mute attenuation Standby pin control voltage Vn offset THD CHsep SVRR VNO Ri Matt Vstby H Vstby L Mute pin control voltage Vmute H Vmute L Output offset detection Detection threshold voltage * 0dBm = 0.775Vrms Vosdet 1.2 1.8 2.4 V VO = 20dBm, mute : on Amp : on Amp : off Mute : off Mute : on 0.0 THD = 10% JEITA max VCC = 15.2, JEITA max Rg = 0 PO = 4W VO = 0dBm, Rg = 10k Rg = 0, fr = 100Hz, VCCR = 0dBm Rg = 0, B.P.F. = 20Hz to 20kHz 40 75 2.5 0.0 Open 1.5 55 45 -100 0.03 65 65 80 50 90 VCC 0.5 200 65 Conditions min RL = , Rg = 0 Vst = 0V VO = 0dBm 25 -1 23 28 43 48 +100 0.2 26 Ratings typ 200 max 400 10 27 +1 mA A dB dB W W W mV % dB dB Vrms k dB V V V Unit
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No.A1542-2/9
LV47002P
Package Dimensions
unit : mm (typ) 3236A
70
29.2 25.6 (22.8) (8.5) ( 2.5) 4.5
Pd max -- Ta
Maximum power dissipation, Pd max -- W
60
50
Infinite heat sink j-c=1C/W
(12.3)
(5.0)
(R1.7)
(14.4) 18.6 max
40
21.7
(11.0)
30
heat sink(f=3.5C/W) j-c+f=4.5C/W
14.5
20
0.4 1 (2.6) (1.0) 0.52 25
3.5
10
4.0
4.2
No heat sink j-a=39C/W
-20 0 20 40 60 80 100 120 140 160
2.0
2.0
0 -40
Ambient temperature, Ta -- C
SANYO : HZIP25
Block Diagram
0.1F + 2200F VCC
Tab 1 6
VCC1/2 20
VCC3/4
IN 1 + 0.47F
11
+ -
+ -
9 7
OUT 1+ OUT 1RL
Protective circuit IN 2 + 0.47F DC 22F + 10 Ripple Filter 12 + +
PWR GND1 8 OUT 2+ OUT 2RL
5 3
PWR GND2 2 OFFSET DIAG
0.47F
AC GND +
16
25 4.7k 5V
PRE GND
13
Mute circuit
Mute 10k 22 + 1F OUT 3+ OUT 3RL Low Level Mute ON
IN 3 + 0.47F
15
+ Protective circuit
+ -
17 19
PWR GND3 18 OUT 4+ OUT 4RL
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IN 4 + 0.47F
14
+ -
+ -
21 23
STBY +5V ST ON
4
Stand by Switch
PWR GND4 24
No.A1542-3/9
LV47002P
External Components
Part Name C1 to C5 C6 C7 C8 C9 R1 R2 Recommended Value 0.47F 22F 2200F 0.1F 1F 10k 4.7k Purpose Cuts DC voltage Reduces ripples Reduces pop noise Ripple filter Improves oscillation stability Reduces pop noise Reduces pop noise Pull-up resistor Eliminating power supply ripples Reducing high-frequency noise The larger the constant value, the longer the mute ON/OFF time The larger the constant value, the longer the mute ON/OFF time Remarks The larger the constant value, the lower the cut-off frequency The values of C1 to C5 must be the same The larger the constant value, the longer the amplifier ON/OFF time
* 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
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.
about 50A 10k MUTE 22 200 18k 1F +
MUTE OFF ON
about 2.5V
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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 VCC/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.
5V OFFSET DIAG 25 IN + AC GND + 16 + + RT OUTOUT+
Output voltage Speaker pin output voltage +1.8V (typical) 0V -1.8V (typical)
25 pin voltage
time
time
Fig3 Self-diagnosis Function Diagram
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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, RL = 4) (2) Board layout * Provide the VCC 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 VCC 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.
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No.A1542-6/9
LV47002P
250
ICCO -- VCC
RL = Open Rg = 0
Output midpoint voltage, VN -- V
14
VN -- VCC
RL = Open Rg = 0
Quiescent current, ICCO -- mA
12
200
10
150
8
100
6
4
50
2 0 6
0 6 8 10 12 14 16 18
8
10
12
14
16
18
Supply voltage, VCC -- V
50
PO -- VCC
Supply voltage, VCC -- V
25
PO -- f
f = 1kHz RL = 4 THD = 10%
Output power, PO -- W
40
20
all channel is similar
Output power, PO -- W
30
15
20
10
all channel is similar
10
5
0 8 10 12 14 16 18
0 10
VCC = 14.4V RL = 4 THD = 1%
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
Supply voltage, VCC -- V
10 7 5 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3 571
Frequency, f -- Hz
10 7 5 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3 57
THD -- PO
THD -- PO
VCC = 14.4V RL = 4 f = 100Hz
CH2 CH4 CH3 CH1
2 3 5 7 10 2 3 5 7 100
Total harmonic distortion, THD -- %
Total harmonic distortion, THD -- %
VCC = 14.4V RL = 4 f = 1kHz
CH2
CH4 CH3
CH1
1 2 3 5 7 10 2 3 5 7 100
Output power, PO -- W
10 7 5 3 2 1 7 5 2 0.1 7 5 3 2 0.01 0.1 2 3 571 2 3 5 7 10 2 3 5 7 100
THD -- PO
Output power, PO -- W
10 7 5 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 10 23 5 7 100 23 5 7 1k
THD -- f
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Total harmonic distortion, THD -- %
CH2 CH4 CH1 CH3
Total harmonic distortion, THD -- %
VCC = 14.4V RL = 4 f = 10kHz
VCC = 14.4V RL = 4 PO = 4W
CH2
CH4 CH1 CH3
23 5 7 10k 23 57 100k
Output power, PO -- W
Frequency, f -- Hz
No.A1542-7/9
LV47002P
1
Respomse -- f
VCC = 14.4V RL = 4 VO = 0dBm
150
VNO -- Rg
VCC = 14.4V RL = 4 CH1 CH4
0
Output noise voltage, VNO -- V
Response -- dB
100
all channel is similar
--1
CH2 CH3
50
--2
--3 10
23
5 7 100
23
5 7 1k
23
5 7 10k
23
5 7100k
0 10
23
5 7 100
23
5 7 1k
23
Frequency, f -- Hz
80
Rg --
5 7 10k
23
5 7100k
CH.Sep -- f
CH1 CH3 CH 1 CH 4 CH 1 CH 2
80
CH.Sep -- f
CH2 CH3 CH 2 CH C 2 H4 CH 1
Channel separation -- dB
Channel separation -- dB
60
60
40
40
20
0 10
VCC = 14.4V RL = 4 Rg = 10k VO = 0dBm (CH1)
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
20
0 10
VCC = 14.4V RL = 4 Rg = 10k VO = 0dBm (CH2)
23 5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
Frequency, f -- Hz
80
Frequency, f -- Hz
80
CH.Sep -- f
CH.Sep -- f
CH4 CH3 CH 4 CH CH 4 2 CH 1
CH
Channel separation -- dB
60
Channel separation -- dB
3
CH3
40
CH
60
CH1
4
2
CH3 CH
40
20
0 10
VCC = 14.4V RL = 4 Rg = 10k VO = 0dBm (CH3)
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
20
0 10
VCC = 14.4V RL = 4 Rg = 10k VO = 0dBm (CH4)
23 5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
Frequency, f -- Hz
80
Frequency, f -- Hz
80
SVRR -- VCC
CH2
Ripple rejection ratio, SVRR -- dB
SVRR -- fR
CH3
Ripple rejection ratio, SVRR -- dB
CH4
CH4
CH2
60
CH3 CH1
60
CH1
40 www..com
40
20
0 8
VCCR = 0dBm fR = 100Hz Rg = 0 RL = 4 VO = 0dBm
10 12 14 16 18
20
0 10
VCC = 14.4V VCCR = 0dBm Rg = 0 RL = 4 CVCC = 0.1F
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
Supply voltage, VCC -- V
Ripple frequency, f R -- Hz
No.A1542-8/9
LV47002P
4
Offset DIAG -- VCC
RL = 4 Rg = 0
60
Pd -- PO
f = 1kHz RL = 4 Pd = VCC x ICC - PO x 4CH
Detection threshold voltage, Vosdet -- V
50 3
Power dissipation, Pd -- W
40
Detection Level
2
30
20
VC
C
=1
6V
4.4 V
1
10
VC
C
=1
0 8 10 12 14 16 18
0 0.1
2
3
57
1
2
3
5 7 10
2
3
5 7 100
Supply voltage, VCC -- V
250
ICCO -- Vst
Mute attenuation, Mute ATT -- dB
Quiescent current, ICCO -- mA
VCC = 14.4V RL = Open Rg = 0
100
Mute ATT -- V Mute
VCC = 14.4V RL = 4 VO = 20dBm
Output power, PO -- W
200
80
150
60
100
40
50
20
0 0 1.0 2.0 3.0 4.0 5.0
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 www..com 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 August, 2009. Specifications and information herein are subject to change without notice. PS No.A1542-9/9

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