LA4425PV [SANYO]
Monolithic Linear IC For Car Radio and Car Stereo 5W Power Amplifier with Very Few External Parts; 单片线性IC，用于汽车收音机和车载立体声5W功率放大器只需极少的外部零件
| 型号： | LA4425PV |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Monolithic Linear IC For Car Radio and Car Stereo 5W Power Amplifier with Very Few External Parts |
| 文件： | 总8页 (文件大小：369K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA2011A
Monolithic Linear IC
For Car Radio and Car Stereo
LA4425PV
5W Power Amplifier
with Very Few External Parts
Overview
The LA4425PV is a 5W power amplifier with very few external parts. Encapsulated in a surface mount package
[SSOP44K (275 mil)], it is designed for operation without a heat sink. Only two external parts (Only IN/OUT coupling
capacitors). Almost no evaluation, adjustment and check of its functions as a power IC required, enabling control to be
simplified and set patterns to be further miniaturized.
Functions
• Wide operation supply range → 5 to 16V
• On-chip protection:
- Over-voltage protection
- Thermal protection
- Output D.C. short protection .
• On-chip pop noise reducing circuit
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum supply voltage
V
max
Rg = 0Ω
18
50
CC
Surge maximum supply voltage
V
surge
Giant pulse 200ms
Rise time 1ms
V
CC
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
I
peak
3.3
5.15
A
O
Pd max
Topr
When mounted on the specified PCB
W
°C
°C
-40 to +85
-40 to +150
Tstg
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. 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 new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) 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.
31412 SY/22912 SY 20110916 S00002 No.A2011-1/8
LA4425PV
Operating Conditions at Ta = 25°C,
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended supply voltage
Recommended load resistance
Operating voltage range
V
13.2
4
CC
R
Ω
L
V
op
5 to 16
2 to 8
V
CC
op
Operating load resistance range
R
Under conditions where maximum ratings are
not exceeded
Ω
L
Electrical Characteristics at Ta = 25°C, V
CC
= 13.2V, R = 4Ω, f = 1 kHz, Rg = 600Ω, Specified board/specified circuit
L
Ratings
Parameter
Symbol
Conditions
Unit
min
typ
max
130
Quiescent current
I
65
45
5
mA
dB
W
CCO
Voltage gain
Output power
V
V
= 0dBm
43
4
47
G
O
P
P
1
2
13.2 V / 4Ω, THD = 10%
14.4 V / 4Ω, THD = 10%
O
O
5
6
W
Total harmonic distortion
Output noise voltage
Ripple rejection ratio
THD
V
= 2Vrms
0.1
1.0
0.5
%
O
V
Rg = 0Ω, BPF = 20 Hz to 20 kHz
Rg = 0Ω, BPF = 20 Hz to 20 kHz
0.15
40
mV
dB
NO
SVRR1
30
V
= 0dBm, f = 100Hz
R
R
SVRR2
Rg = 0Ω, BPF = 20 Hz to 20 kHz
= 0dBm, f = 1kHz
47
dB
V
R
R
Over-voltage attack
Starting time
V
X
Rg = 0Ω
21.5
0.35
50
V
s
CC
t
S
Input resistance
Roll-off frequency
R
f
kΩ
Hz
kHz
IN
40
L
f
90
H
Package Dimensions
unit : mm (typ)
3333
TOP VIEW
SIDE VIEW
BOTTOM VIEW
15.0
44
23
(4.7)
1
22
0.65
0.22
0.2
(0.68)
SIDE VIEW
SANYO : SSOP44K(275mil)
No.A2011-2/8
LA4425PV
Pd max -- Ta
6.0
5.0
4.0
3.0
2.0
1.0
0
5.15
Board specifications of the Pdmax - Ta measurement
(LA4425PV specified PCB)
Size: 70mm × 70mm × 1.6mm3 (Four layer boards)
Copper foil thickness: L1/L4=18µm, L2/L3=35µm
Materials: FR-4 (Glass cloth matrix epoxy resin)
2.68
-40
-20
0
20
40
60
80
100
Ambient temperature, Ta --
C
L1: Figure of copper wiring pattern
L2: Figure of copper wiring pattern
L3: Figure of copper wiring pattern
L4: Figure of copper wiring pattern
Notes:
The data for the case with the exposed die-pad substrate mounted shows the values when 95% or more of the Exposed
Die-Pad is wet.
1. For the set design, employ the derating design with sufficient margin.
2. Stresses to be derated include the voltage, current, junction temperature, power loss, and mechanical stresses such
as vibration, impact, and tension.
Accordingly, the design must ensure these stresses to be as low or small as possible.
The guideline for ordinary derating is shown below:
(1) Maximum value 80% or less for the voltage ratings
(2) Maximum value 80% or less for the current ratings
(3) Maximum value 80% or less for the temperature ratings
3. After the set has been designed, be sure to verify the design with the actual product. Confirm the solder joint state
and verify also the reliability of solder joint for the Exposed Die-Pad, etc. Any void or deterioration, if observed in
the solder joint of these parts, causes deteriorated thermal conduction, possibly resulting in thermal destruction of
IC.
No.A2011-3/8
LA4425PV
Pin Assignment
44
43
42
41
40
39
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
38
LV4425PV
1
2
3
4
5
6
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
7
• Connect exposed die pad on the back side to GND with a large pattern.
• Pins whose names are not given next to the pin numbers are all “NC pins” that are not connected to the chip inside the
package, and they must not be used as relay pins.
Application Circuit Example
V
CC
+
36 37
IN
+
10
33
34
+
LA4425PV
OUT
14
15
30
31
PREGND
POWERGND
• On-chip overvoltage protection
• On-chip thermal protection
• On-chip pop noise reducing circuit
• On-chip output D.C. short protection
Pin Voltage at V
= 13.2V
CC
Characteristics
Pin No.
Input
10
Pre GND
14, 15
Power GND
30, 31
Output
33, 34
V
CC
36, 37
(V
(≈ 2V
)
(≈ 1/2V
)
)
Pin voltage
(reference value)
BE
CC
CC
13.2V
0V
0V
1.4V
6.5V
No.A2011-4/8
LA4425PV
IC Usage Notes
• Maximum ratings
If the IC is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum
ratings to be exceeded, thereby leading to a breakdown.
• Printed circuit board
When drawing the printed circuit pattern, refer to the sample printed circuit pattern. Be careful not to form a feedback
loop between input and output.
Always use both pins of the Pre GND, Power GND, OUT and V
when designing the layout.
CC
• Exposed Die-Pad
The exposed die pad on the back side of the IC must be connected to GND with a large pattern surface area.
• Load Resistance and Misoperation
It should be noted that when R < 2Ω and V
is high, and the switch is turned “ON” when setting is for a signal (THD
L
CC
= 10%), the ground detector (current × voltage Schmitt circuit) operates momentarily.
• Starting Time (t )
s
This is set at 0.35sec/typ, but it can be made shorter by making input capacitor Ci smaller, or longer by making it larger.
• Pop noise
The pop noise prevention circuit operates to reduce pop until Rg reaches 50kΩ. However, if Rg is left open, the charging
route of input capacitor Ci is lost, so the pop noise reduction circuit stops operating and click noises become louder.
• VG/OSC
The voltage gain is fixed at 45dB inside the IC. It is impossible to change it externally.
Phase compensation capacitors (350pF/total) are connected between individual stages inside the IC, and the open loop
gain is low. In addition, the upper and lower drives are made equivalent so that final stage current gain is adjusted,
providing a measure against unwanted high-frequency parasitic oscillation peculiar to power IC’s.
• BTL Connection
Connection is impossible with IC alone.
PS No.A2011-5/8
LA4425PV
I
-- V
CC
V
-- V
CC
CCO
N
12
10
8
100
80
60
40
20
0
6
4
2
0
0
2
4
6
8
10 12 14 16 18 20 22 24
0
2
4
6
8
10 12 14 16 18 20 22 24
Supply voltage, V
CC
-- V
Supply voltage, V
-- V
CC
P
-- V
THD -- P
O
IN
O
10
10
7
7
5
5
3
2
3
2
1.0
7
5
1.0
7
5
3
2
3
2
0.1
7
5
0.1
3
7
5
2
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
1.0
0.1
1.0
10
10
100
Input voltage, V -- mV
IN
Output power, P -- W
O
f Response
THD -- f
1
0
3
2
-1
1.0
-2
-3
7
5
f
f
H
L
-4
3
2
-5
-6
-7
0.1
-8
7
5
-9
-10
10
3
2
3
5
2
3
5
2
3
5
2
3
5
3
5
7
2
3
5
7
2
3
5
7
10k
2
3
100
1k
10k
100k
100
1k
Frequency, f -- Hz
Frequency, f -- Hz
THD -- V
CC
P
-- V
O
CC
5
12
10
8
3
2
1.0
7
5
6
3
2
4
2
0.1
7
5
0
6
8
10
12
14
16
18
20
8
10
12
14
16
18
20
Supply voltage, V
CC
-- V
Supply voltage, V -- V
CC
PS No.A2011-6/8
LA4425PV
I
, Pd -- P
I
, Pd -- P
CC
O
CC
O
700
600
500
400
300
200
100
0
7
6
5
4
3
2
1
0
1200
1000
800
600
400
200
0
I
CC
I
CC
10
8
V
=16V
CC
V
=16V
CC
6
V
=13.2V
CC
4
V
=13.2V
CC
2
0
7
2
3
5
7
2
3
5
7
7
2
3
5
7
2
3
5
7
2
0.1
1.0
10
0.1
1.0
10
Output power, P -- W
Output power, P -- W
O
O
V
-- Rg
SVRR -- V
CC
NO
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
7
2
3
5
7
2
3
5
7
100k
2
8
9
10
11
12
13
14
15
16
17
18
19
1k
10k
Supply voltage, V
CC
-- V
SVRR -- V
SVRR -- f
R
R
50
40
30
20
10
0
50
40
30
20
10
0
0
200
400
600
800
1000
1200
0
5
7
2
3
5
7
2
100
1k
Power supply ripple, V -- mVrms
Ripple frequency, f -- Hz
R
R
t
s
GND
GND
0.2s/div
0.2s/div
PS No.A2011-7/8
LA4425PV
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.
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 February, 2012. Specifications and information herein are subject
to change without notice.
PS No.A2011-8/8
相关型号：
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